learn about ER430

ER430 welding wire is a specialized and performance-matched consumable for welding 17% chromium ferritic stainless steels, such as the 430 series (10Cr17). Its corrosion and wear resistance complements that of the base metal.learn about ER430.

Description: ER430 stainless steel welding wire is a welding material specially used for welding 17% chromium ferritic stainless steel. Due to its good corrosion resistance and wear resistance, it is used in some specific occasions.

Applications: Welding 10Cr17 (SUS430) and other materials, commonly used in wear-resistant and corrosion-resistant occasions, such as guardrails, golf heads, silencer system components, food and medical equipment components, etc.

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① MIG/MAG welding (DC reverse connection DC+): ● Shielding gas: It is recommended to use a mixture of Ar + (1~3)% O₂.

● Gas flow rate: 20-25 L/min recommended. ● Stickout length: Typically 15-25 mm. ● Reference welding current: – Φ0.8mm: 70-150 A – Φ1.0mm: 100-200 A – Φ1.2mm: 140-220 A – Φ1.6mm: 180-300 A (flat and horizontal); 180-250 A (vertical and overhead) ② TIG welding (AC or DC positive): ● Shielding gas: Use pure Ar. ● Gas Flow Rate: –For currents of 100-200A: 9-14 L/min –For currents of 200-300A: 14-18 L/min ● Reference Welding Current: –For 1.6mm Φ: 50-100 A –For 2.0mm Φ: 100-200 A –For 2.5mm Φ: 200-300 A –For 3.2mm Φ: 300-400 A

①: Pre-welding Cleaning: Thoroughly remove rust, moisture, oil, dust, and other impurities from the weld area. ②: Windbreaks: When welding outdoors, if wind speeds exceed 1.5 m/s (MIG) or exceed 1.0 m/s (TIG), windbreaks must be implemented to prevent the formation of gas holes. ③: Interpass Temperature Control: When welding ferritic stainless steel, controlling the interpass temperature (for example, no more than 150°C) helps prevent excessive grain growth, thereby maintaining good joint performance. ④: For TIG welding of critical components or single-sided welding with double-sided forming, it is recommended to apply argon shielding to the back of the weld to achieve better back-forming and prevent oxidation. ⑤: Heat Input Control: Carefully control the welding heat input. Excessive heat input may affect the mechanical properties and crack resistance of the weld metal. ⑥: Post-weld Heat Treatment: For certain demanding applications, post-weld heat treatment (such as annealing) may be required to optimize the corrosion resistance and toughness of the weld.

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