Category:Hardware & Tools/Welding Materials & Accessories/Other Welding Materials

Product Description:JD·A022NP Stainless Steel Welding ElectrodeGB/T 983 E316L-16 AWS A5.4 E316L-16 ISO 3581-A-E (19 12 3 L) R 3 2 ISO 3581-B-ES 316L-16 NB/T 20009.3 E316LApplication:Suitable for welding ultra-low carbon stainless steel materials in nuclear power engineering and other important structures in various industries.Characteristics:Rutile-type coated ultra-low carbon stainless steel electrode for nuclear power applications, featuring excellent welding process performance, stable arc, minimal spatter, easy slag removal, and aesthetically pleasing weld formation. The weld metal exhibits good resistance to intergranular corrosion.Power Polarity:AC, DC reverse polarity (AC, DC+), with DC reverse polarity recommended.Deposited Metal Chemical Composition (%)Test Item C Mn Si P S Cr Ni Guaranteed Value ≤0.035 0.50～2.50 ≤0.90 ≤0.025 ≤0.015 18.00～20.00 12.00～14.00 Example Value 0.025 1.50 0.72 0.010 0.004 19.00 12.65 Test Item Mo Cu Co B N Nb δ-Ferrite Content Guaranteed Value 2.00～3.00 ≤0.10 ≤0.15 ≤0.0018 -- -- 5～15 Example Value 2.35 0.008 0.012 0.0010 0.045 0.015 11 Deposited Metal Mechanical PropertiesTest ItemRm(MPa)ReL/Rp0.2(MPa)A(%)KV2 (J)Room TemperatureHeat Treatment ConditionGuaranteed Value520～670≥210≥30≥60As-WeldedExample Value5904104168As-Welded more>

Category:Hardware & Tools/Pneumatic Components/Pneumatic Fittings

Product Description:The C-MAX C-3650DA 120PSI pneumatic actuator is an execution device driven by air pressure to open, close, or regulate valves. It is also known as a pneumatic actuator or pneumatic device, though it is commonly referred to as a pneumatic head. It features an aesthetically pleasing and compact design with a modern appearance. The C-MAX C-3650DA 120PSI pneumatic actuator utilizes innovative materials and new manufacturing processes, ensuring higher product quality and more reliable performance. Multiple specifications are available for more economical and practical selection. The product fully complies with *** technical standards and meets both current and future needs.CHUNG HORNG ENTERPRISE CO.LTDSHEN KANG TAICHUNG TAIWANProduct models include:Double ActingC-125DAC-250DAC-450DAC-1000DAC-2250DAC-3650DAC-5000DAC-11000DASingle ActingC-250SR2/3/4/5/6C-450SR2/3/4/5/6C-1000SR2/3/4/5/6C-2250SR2/3/4/5/6C-3650SR2/3/4/5/6C-5000SR2/3/4/5/6C-11000SR2/3/4/5/6Key Vocabulary:ActuatorPneumatic actuatorCylinder; Air cylinderInterface StandardsThe interface between the actuator and the valve complies with ISO5211 and DIN3337.The interface between the actuator and control valves (solenoid valves, etc.) complies with NAMUR.The interface between the actuator and signal units (limit switches, positioners) complies with NAMUR.Travel Range and Open-Close Angle AdjustmentStandard travel: 0°±5° to 90°±5° (Two independent external adjustment bolts allow for a ±5° adjustment range at both 0° and 90° simultaneously.)As a critical actuator in industrial automation control systems, the C-MAX C-3650DA 120PSI pneumatic actuator enables remote centralized control and meets the requirements of computer-programmed control. It is widely used in industries such as petrochemicals, gas equipment, nuclear industry, power equipment, environmental water treatment, HVAC, steel metallurgy, industrial furnaces, filling equipment, brewing equipment, drying equipment, vacuum equipment, surface treatment, biopharmaceuticals, food machinery, textile printing and dyeing, and papermaking. It is also a product that supports *** construction and technological advancement. more>

Category:Hardware & Tools/Welding Materials & Accessories/Other Welding Materials

Product Description:ZL205A High-Strength Aluminum Alloy Welding Wire: The Key Material for Welding High-Demand CastingsAbstractZL205A alloy is an ultra-high-strength cast aluminum-copper-manganese-titanium alloy independently developed in China. With its excellent mechanical properties, good heat resistance, and processability, it holds an irreplaceable position in aerospace, national defense, and high-end equipment manufacturing. However, its outstanding performance also presents welding challenges. The specialized ZL205A welding wire, designed to match it, is the core material for achieving high-quality repair and joining. This article delves into the characteristics, applications, and key welding techniques of ZL205A welding wire.I. ZL205A Base Material: An Exceptional "Forging-Grade" Cast AluminumTo understand the importance of the welding wire, one must first understand the base material—ZL205A alloy. It belongs to the Al-Cu-Mn-Ti alloy system, with its most notable feature being its extremely high strength, with tensile strength reaching over 500 MPa, approaching the level of some steels. Hence, it is known as a "forging-grade" cast aluminum alloy.Core Characteristics:Ultra-High Strength: Through T5 or T6 heat treatment (solution treatment + artificial aging), it achieves extremely high specific strength.Good Heat Resistance: It maintains high strength stability even in working environments of 200–250°C.Excellent Machinability: It offers good surface finish after processing.Main Applications: Commonly used in manufacturing aircraft and missile shells, beams, frames, and various high-load-bearing structural components.II. ZL205A Welding Wire: Precise Matching for Specialized UseFor high-strength, heat-treatable aluminum alloys like ZL205A, welding is not merely "bonding" but involves reconstructing a joint area with similar mechanical properties and microstructure. Therefore, general-purpose ER4043 or ER5356 welding wires cannot meet the requirements.The core design principle of ZL205A welding wire is composition matching and performance restoration.Precise Chemical Composition Replication:The chemical composition of ZL205A welding wire is highly similar to the base alloy, typically containing approximately 5.0% copper (Cu), along with matching amounts of manganese (Mn), titanium (Ti), cadmium (Cd), and boron (B). This composition design ensures:Compatibility Between Weld Metal and Base Material: Prevents electrochemical corrosion due to significant compositional differences.Identical Strengthening Path: The weld metal can undergo the same heat treatment process (T5/T6) as the base material to achieve precipitation strengthening and restore strength.Welding Metallurgical Properties:Crack Resistance: The addition of elements like Ti and B as grain refiners breaks down columnar grains in the weld, forming fine equiaxed grains, significantly improving resistance to hot cracking.Porosity Sensitivity: Aluminum alloy welding is highly prone to hydrogen absorption, leading to porosity. High-quality ZL205A welding wire strictly controls hydrogen sources (e.g., moisture, oil contamination) during production and packaging, with special surface cleaning treatments.Mechanical Performance Goals:When using the correct ZL205A welding wire and proper heat treatment, the mechanical properties of the weld metal should approach those of the base material, with tensile strength ≥400 MPa or higher, ensuring the integrity of structural components.III. Application Scenarios of ZL205A Welding WireZL205A welding wire is primarily used in the following scenarios:Defect Repair of ZL205A Castings: This is its main application. Defects such as shrinkage porosity and gas holes inevitably occur during casting. Using homogeneous welding wire for argon arc welding (GTAW/TIG) repair is crucial for ensuring product qualification rates and salvaging high-value castings.Welding Between ZL205A Components: When structures require assembly from multiple ZL205A castings or forgings, specialized welding wire must be used to ensure joint strength.IV. Key Technical Points in Welding ProcessWelding with ZL205A welding wire is a precision task that requires strict control of the following aspects:Pre-Welding Preparation—The Foundation of SuccessThorough Cleaning: Use stainless steel wire brushes or chemical methods to completely remove oxide films and oil contamination from the groove and surrounding areas. The aluminum oxide film (Al?O?) has a much higher melting point than aluminum itself; failure to clean it properly will prevent welding.Strict Preheating: Preheat the workpiece to 150–200°C to reduce welding stress and cooling rates, prevent cold cracking, and facilitate hydrogen escape.Welding Process—Precision OperationWelding Method: Tungsten Inert Gas Welding (GTAW/TIG) is the preferred method due to its controllable heat input, excellent protection, and high weld quality. In specific cases, Gas Metal Arc Welding (GMAW/MIG) may also be used.Shielding Gas: Use high-purity (≥99.999%) argon with moderate flow rate (typically 10–15 L/min) to ensure adequate protection of the molten pool and heat-affected zone.Heat Input Control: Use low heat input and high welding speeds to minimize welding deformation and joint softening.Post-Weld Heat Treatment—"Activation" of PerformanceImmediately after welding, perform solution treatment + artificial aging (T6) or direct artificial aging (T5). This step is critical as it:Eliminates Welding Stress.Homogenizes the Weld Microstructure.Promotes Precipitation of Strengthening Phases (θ' and θ phases), restoring the weld strength to match the base material. Without heat treatment, the strength of the welded joint will be significantly compromised.V. Challenges and PrecautionsHot Cracking Tendency: Al-Cu alloys have a wide solidification temperature range, making them susceptible to hot cracking. This must be controlled through alloy design of the welding wire and strict process control.Porosity Issues: Extreme sensitivity to hydrogen requires flawless execution in every step, from welding wire storage (vacuum or dry environment) and workpiece cleaning to gas shielding.Joint Softening: Welding thermal cycles can dissolve or coarsen strengthening phases in the heat-affected zone (HAZ), reducing strength. Optimized welding parameters and post-weld heat treatment can largely restore performance.ConclusionZL205A high-strength aluminum alloy welding wire is not a general-purpose commodity but a "specialized solution" tailored for specific high-end alloys. It embodies the design philosophy of "integration of welding material and base material" in modern welding engineering. The successful application of ZL205A welding wire relies not only on the high quality of the wire itself but also on a rigorous and comprehensive welding process system—from pre-welding preparation and process control to post-weld heat treatment. In fields critical to national security, such as aerospace, the relentless pursuit of these "details" is the cornerstone of ensuring the reliability and safety of major equipment. more>

Category:Hardware & Tools/Welding Materials & Accessories/Other Welding Materials

Product Description:Application:Suitable for welding 12Cr18Ni9 and 06Cr19Ni10, commonly used in food and medical industries, engineering machinery, etc.Characteristics:18Cr-8Ni fully austenitic stainless steel TIG welding wire with pure argon gas protection. Excellent welding process performance, stable arc, no spatter, beautiful weld formation, good crack resistance. Suitable for welding non-magnetic steels, high manganese steels, and hardenable corrosion-resistant steels.Polarity:DCEN (DC-)Shielding Gas:100% ArChemical Composition of Welding Wire (%)Test Item C Mn Si Cr Ni Mo P S Guaranteed Value ≤0.08 ≤2.00 ≤1.00 18.00～20.00 8.00～10.50 -- ≤0.045 ≤0.030 Example Value 0.04 1.78 0.46 19.50 8.10 0.10 0.030 0.010 more>

Category:Hardware & Tools/Welding Materials & Accessories/Other Welding Materials

Product Description:GB/T 984 EDPMn2-16 GB/T 984 EDPMn2-15Application:Suitable for surfacing welding or repair of worn surfaces of low-carbon steel, medium-carbon steel, and low-alloy steel.Characteristics:D106 is a Mn-type surfacing electrode with a low-hydrogen potassium coating; D107 is a Mn-type surfacing electrode with a low-hydrogen sodium coating, featuring stable arc performance and easy slag removal.Power Polarity:D106: AC or DC reverse polarity (AC, DC?); D107: DC reverse polarity (DC?)Chemical Composition of Deposited Metal (%)Test ItemCMnGB/T Standard≤0.20≤3.50Example Value0.143.10Hardness of Surfacing MetalTest ItemHB (4 layers or more)GB/T Standard≥220Reference CurrentElectrode Specification (mm)Φ3.2Φ4.0Φ5.0Welding Current (A)90～130120～170160～210Welding Process Key Points:1. Drying requirement: D106 and D107 electrodes must be baked at 300–350°C for 1 hour before use and used immediately after baking.2. For large workpieces, preheating to around 200°C is recommended before welding, and the surface to be surfaced should be cleaned of rust and oil stains. more>

Category:Hardware & Tools/Welding Materials & Accessories/Other Welding Materials

Product Description:Application:Suitable for welding super duplex stainless steels such as S32750, commonly used in petrochemical, shipbuilding, nuclear power, and other fields.Characteristics:Austenitic-ferritic duplex stainless steel TIG welding wire with pure argon gas protection. Excellent welding process performance, stable arc, minimal spatter, good wire feedability, aesthetically pleasing weld formation, and good crack resistance. High PREN, excellent corrosion resistance.Polarity:DCEN (DC-)Shielding Gas:100% ArChemical Composition of Welding Wire (%)Test Item C Mn Si Cr Ni Mo P S Cu N Guaranteed Value ≤0.030 ≤2.50 ≤1.00 24.00～27.00 8.00～10.50 2.50～4.50 ≤0.030 ≤0.020 ≤1.50 0.20～0.30 Example Value 0.021 2.10 0.56 25.6 9.75 3.25 0.011 0.009 0.15 0.22 more>

Category:Hardware & Tools/Welding Materials & Accessories/Other Welding Materials

Product Description:MG317L Stainless Steel Gas Shielded Solid WireGB/T 29713 S317L AWS A5.9 ER317L Equivalent to ISO 14343-A-G (18 15 3 L)Application:Suitable for welding 0Cr19Ni13Mo3, commonly used in petrochemical, engineering machinery, and other fields.Characteristics:Ultra-low carbon 19Cr-14Ni-3Mo austenitic stainless steel mixed gas shielded MIG wire with excellent welding process performance, stable arc, minimal spatter, good wire feedability, aesthetically pleasing weld formation, excellent crack resistance, and superior intergranular corrosion resistance. Suitable for welding in environments exposed to acetic acid, sulfurous acid, phosphoric acid, and salts.Polarity:Direct current electrode positive (DCEP)Shielding Gas:0.5%～5% CO2 + Ar; 0.5%～3% O2 + ArWire Chemical Composition (%)Test ItemCMnSiCrNiMoPSCuGuaranteed Value≤0.031.00～2.500.30～0.6518.50～20.5013.00～15.003.00～4.00≤0.030≤0.030≤0.75Example Value0.021.780.4619.7513.613.480.0180.0100.01<img src="https://img-i-album.toocle.com/view/2025/10/15/db/68ef122c6f1db.jpg" style="max-width:100%;"/>Reference CurrentWire Diameter (mm)Φ0.8Φ1.0Φ1.2Φ1.6Welding Current (A)Flat, Horizontal70～150100～200140～220180～300Vertical, Overhead70～120100～170140～200180～250 more>

Category:Hardware & Tools/Welding Materials & Accessories/Other Welding Materials

Product Description:MG347 Stainless Steel Gas Shielded Solid WireGB/T 29713 S347 AWS A5.9 ER347 ISO 14343-A-G (19 9 Nb)Application:Suitable for welding 07Cr19Ni11Nb and 07Cr18Ni11Nb, commonly used in food and medical industries, pressure vessels, petrochemicals, etc.Characteristics:20Cr-10Ni-Nb austenitic stainless steel mixed gas shielded MIG wire, excellent welding process performance, stable arc, minimal spatter, good wire feed, aesthetically pleasing weld formation, good crack resistance, suitable for welding in corrosion-resistant service environments.Polarity:Direct current electrode positive (DCEP)Shielding Gas:0.5%～5% CO2 + Ar; 0.5%～3% O2 + ArWire Chemical Composition (%)Test Item C Mn Si Cr Ni Mo P S Cu Nb Guaranteed Value ≤0.08 1.00～2.50 0.30～0.65 19.00～21.50 9.00～11.00 ≤0.75 ≤0.030 ≤0.030 ≤0.75 10×C～1.00 Example Value 0.03 1.80 0.40 20.39 9.92 0.44 0.015 0.012 0.33 0.81Reference CurrentWire Diameter (mm)Φ0.8Φ1.0Φ1.2Φ1.6Welding Current (A)Flat, Horizontal70～150100～200140～220180～300Vertical, Overhead70～120100～170140～200180～250 more>

Category:Hardware & Tools/Welding Materials & Accessories/Other Welding Materials

Product Description:GB/T 29713 S309L AWS A5.9 ER309L ISO 14343-A-G (23 12 L)用途：適用于022Cr24Ni13的焊接，常見應用領域為石油化工等。特性:超低碳24Cr-13Ni奧氏體不銹鋼混合氣體保護MIG焊絲，焊接工藝性優(yōu)良，電弧穩(wěn)定、飛濺小，送絲性良好，焊縫成型美觀，抗裂性好，適用于韌性較差的馬氏體、鐵素體不銹鋼焊接。電源極性:直流反接（DC+）保護氣體:0.5%～5%CO2+Ar；0.5%～3%O2+Ar焊絲化學成分（%）試驗項目 C Mn Si Cr Ni Mo P S Cu 保證值 ≤0.03 1.00～2.50 0.30～0.65 23.00～25.00 12.00～14.00 ≤0.75 ≤0.030 ≤0.030 ≤0.75 例值 0.02 1.95 0.45 23.90 12.92 0.039 0.012 0.008 0.19參考電流焊絲規(guī)格（mm）Φ0.8Φ1.0Φ1.2Φ1.6焊接電流(A)平焊、橫焊70～150100～200140～220180～300立焊、仰焊70～120100～170140～200180～250 more>

Category:Hardware & Tools/Welding Materials & Accessories/Other Welding Materials

Product Description:GB/T 29713 S630 AWS A5.9 ER630 ISO 14343-B-SS630Application:Suitable for welding base metals in corrosion-resistant parts of steam turbines, commonly used in fields such as locomotives and rolling stock.Characteristics:17Cr-4Ni-4Cu-Nb stainless steel mixed gas shielded MIG welding wire with excellent welding process performance, stable arc, minimal spatter, good wire feedability, aesthetically pleasing weld formation, and good crack resistance. Suitable for welding in corrosive service environments.Polarity:Direct current electrode positive (DCEP)Shielding Gas:0.5%～5% CO2 + Ar; 0.5%～3% O2 + ArWelding Wire Chemical Composition 1 (%)Test Item C Mn Si Cr Ni Mo P S Cu Nb Guaranteed Value ≤0.05 0.25～0.75 ≤0.75 16.00～16.75 4.50～5.00 ≤0.75 ≤0.030 ≤0.030 3.25～4.00 0.16～0.30 Example Value 0.032 0.50 0.32 16.55 4.63 0.45 0.012 0.011 3.40 0.25 more>

Category:Hardware & Tools/Welding Materials & Accessories/Other Welding Materials

Product Description:MG308LSi Stainless Steel Gas Shielded Solid WireGB/T 29713 S308LSi AWS A5.9 ER308LSi ISO 14343-A-G (19 9 L Si)Application:Suitable for welding 022Cr19Ni10, commonly used in fully automated welding applications.Characteristics:Ultra-low carbon high silicon 18Cr-8Ni austenitic stainless steel mixed gas shielded MIG wire, with excellent welding process performance, stable arc, minimal spatter, and good wire feedability. Thanks to its high silicon content, it reduces defects such as poor fusion during high-speed welding.Polarity:DC electrode positive (DC+)Shielding Gas:0.5%～5% CO2 + Ar; 0.5%～3% O2 + ArWire Chemical Composition (%)Test Item C Mn Si Cr Ni Mo P S Cu Guaranteed Value ≤0.03 1.00～2.50 0.65～1.00 19.50～22.00 9.00～11.00 ≤0.75 ≤0.030 ≤0.030 ≤0.75 Example Value 0.02 2.20 0.75 19.82 10.54 0.036 0.018 0.011 0.15 more>

Category:Hardware & Tools/Welding Materials & Accessories/Other Welding Materials

Product Description:D207 Hardfacing Welding ElectrodeGB/T 984 EDPCrMnSi-A1-15Application:Suitable for hardfacing worn parts such as bulldozer blades and propellers.Characteristics:CrMnSi type hardfacing electrode with low-hydrogen sodium coating.Polarity:Direct current reverse polarity (DC+)Deposited Metal Chemical Composition (%)Test ItemCMnSiCrSPTotal Other ElementsGB/T Standard0.30～1.00≤2.50≤1.00≤3.50≤0.035≤0.035≤1.00Example Value0.522.420.453.050.0070.020——Hardfacing Metal HardnessTest ItemHRC(4 layers or more)GB/T Standard≥50Reference CurrentElectrode Diameter (mm)Φ3.2Φ4.0Φ5.0Welding Current (A)90～130120～170160～210Welding Process Guidelines:1. Drying requirement: Electrodes must be baked at 300～350℃ for 1 hour before use and used immediately after baking.2. For large workpieces, preheating to around 200℃ is recommended, and the surface rust and oil stains of the hardfacing area should be thoroughly cleaned. more>

Category:Hardware & Tools/Welding Materials & Accessories/Other Welding Materials

Product Description:Application:Suitable for surfacing welding on impact-worn surfaces of high manganese steel, various crushers, bulldozers, etc., such as railway high manganese steel rails, switch repair welding, etc.Characteristics:A low-hydrogen potassium-coated MnMo type surfacing welding electrode. The deposited metal has an austenitic structure, can be cold-worked, hardens upon impact, offers good impact wear resistance, high toughness, and relatively good crack resistance.Polarity:AC, DC reverse polarity (AC, DC+)Chemical Composition of Deposited Metal (%)Test ItemCMnSiMoSPGuaranteed Value≤0.1214.00～18.00≤0.401.50～2.50≤0.035≤0.035Example Value0.1015.950.152.350.0030.014Hardness of Surfacing MetalTest ItemHB (4 layers or more)Guaranteed ValueAs-weldedAfter HammeringAfter Rolling Impact180～230370～420400～500Reference CurrentElectrode Specification (mm)Φ3.2Φ4.0Φ5.0Welding Current (A)90～130120～170160～210Welding Process Key Points:1. Drying requirement: Electrodes must be baked at 300–350°C for 1 hour before use and used immediately after baking.2. During surfacing, apply water quenching while welding, followed by hammering and rolling impact after welding. more>

Category:Hardware & Tools/Welding Materials & Accessories/Other Welding Materials

Product Description:GB/T 983 E347L-16 AWS A5.4 E347L-16 ISO 3581-B-ES 347L-16Application:Suitable for welding 06Cr18Ni11Ti type stainless steel and corrosion-resistant overlay welding in petrochemical equipment.Characteristics:A rutile-type ultra-low carbon Cr19Ni10Nb stainless steel electrode with Nb stabilizer, offering excellent welding process performance and intergranular corrosion resistance.Polarity:AC, DC reverse polarity (AC, DC+), with DC reverse polarity recommended.Mechanical Properties of Deposited MetalTest ItemRm (MPa)A(%)GB/T Standard≥510≥25Example Value59041Reference CurrentElectrode Diameter (mm)Φ2.5Φ3.2Φ4.0Φ5.0Welding Current (A)Flat, Horizontal50～9080～120100～150140～180Vertical, Overhead60～8090～110110～140—Welding Process Key Points:1. Drying requirement: Electrodes must be baked at 300°C for 1 hour before use and used immediately after baking.2. When using AC welding, spatter is greater, the coating is prone to reddening, and penetration is shallower; therefore, DC reverse polarity welding is recommended.3. Use low current and short arc welding as much as possible during welding, with minimal oscillation amplitude. more>

Category:Hardware & Tools/Welding Materials & Accessories/Other Welding Materials

Product Description:A407 Stainless Steel Welding ElectrodeGB/T 983 E310-15 AWS A5.4 E310-15 ISO 3581-A-E(25 20)B 4 2 ISO 3581-B-ES 310-15Application:Suitable for welding the same type of heat-resistant stainless steel, high hardenability chromium steel, and dissimilar steels under high-temperature conditions.Characteristics:Basic coated Cr26Ni21 stainless steel electrode, deposited metal exhibits excellent oxidation resistance at high temperatures of 900～1100°C.Power Polarity:Direct current reverse polarity (DC+).Chemical Composition of Deposited Metal (%)Test Item C Mn Si P S Cr Ni Mo Cu GB/T Standard 0.08～0.20 1.00～2.50 ≤0.75 ≤0.030 ≤0.030 25.0～28.0 20.0～22.5 ≤0.75 ≤0.75 Example Value 0.11 1.70 0.30 0.021 0.007 26.10 20.76 0.048 0.035 Mechanical Properties of Deposited MetalTest Item Rm (MPa) A(%) GB/T Standard ≥550 ≥25 Example Value 590 38 more>

Category:Hardware & Tools/Welding Materials & Accessories/Other Welding Materials

Product Description:A212 Stainless Steel Welding ElectrodeGB/T 983 E318-16 AWS A5.4 E318-16 ISO 3581-A-E(19 12 3 Nb)R 3 2 ISO 3581-B-ES 318-16Application:Suitable for welding stainless steels such as 06Cr17Ni12Mo2Ti and 06Cr17Ni12Mo2Nb, including components exposed to highly corrosive media like urea synthesis towers and vinylon equipment.Characteristics:A Cr18Ni12Mo2Nb stainless steel electrode with rutile-type coating, offering excellent welding process performance and resistance to intergranular corrosion.Polarity:AC, DC reverse polarity (AC, DC+), with DC reverse polarity recommended.Deposited Metal Chemical Composition (%)Test Item C Mn Si P S Cr Ni Mo Cu Nb+Ta GB/T Standard ≤0.08 0.50～2.50 ≤1.00 ≤0.040 ≤0.030 17.0～20.0 11.0～14.0 2.0～3.0 ≤0.75 6×C～1.00 Example Value 0.045 0.95 0.70 0.022 0.010 19.20 11.93 2.40 0.038 0.45 Deposited Metal Mechanical PropertiesTest Item Rm (MPa) A(%) GB/T Standard ≥550 ≥20 Example Value 600 39Reference CurrentElectrode Size (mm)Φ2.5Φ3.2Φ4.0Φ5.0Welding Current (A)Flat, Horizontal50～9080～120100～150140～180Vertical, Overhead60～8090～110110～140—Welding Process Guidelines:1. Drying Requirement: Electrodes must be baked at 300°C for 1 hour before use and used immediately after baking.2. When using AC welding, spatter is higher, the coating tends to redden, and penetration is shallower; therefore, DC reverse polarity welding is recommended.3. Use low current and short arc welding as much as possible during welding, with minimal oscillation amplitude. more>