Huona (Shanghai) New Material Co., Ltd.
                                                                                                           
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420S Stainless Steel Welding Rod Wire ER420 SUS420 for Cutlery Tools Valves Pumps Diameter 08 to 50 mm High Strength

Price Negotiable
Price: NEGOTATION
MOQ: 5KG
Delivery Time: A WEEK
Brand: HUONA
Product Description
420S Stainless Steel Welding Rod Wire ER420 SUS420

420/420S stainless steel welding rod/wire (also known as ER420, ER420S, SUS420, SUS420S, WNR 1.4021, 1.4028, SS420) is a martensitic stainless steel filler material designed for welding 420 stainless steel and similar high-hardness alloys.

This welding material provides high hardness, mechanical strength, and moderate corrosion resistance, making it ideal for cutlery, tools, valves, pumps, shafts, and wear-resistant components. The 420S variant features low-carbon composition, improving weldability and reducing the risk of sensitization.

420S Stainless Steel Welding Rod Wire - Professional industrial welding material
Chemical Composition
Typical Values (%)
Element Content
Carbon (C) 0.15-0.30 (420) / ≤0.08 (420S)
Chromium (Cr) 12-14
Nickel (Ni) ≤0.75
Manganese (Mn) ≤1
Silicon (Si) ≤1
Phosphorus (P) ≤0.04
Sulfur (S) ≤0.03
Iron (Fe) Balance

Technical Specifications
Parameter Specification
Material Type Martensitic Stainless Steel (420 / 420S / ER420 / ER420S / SUS420 / SUS420S)
Product Form Welding Rod / Welding Wire
Diameter 0.8 - 5.0 mm (customizable)
Length 250 - 1000 mm (customizable)
Melting Point Approx. 1420-1450 °C
Conductivity Low
Corrosion Resistance Moderate, suitable for industrial applications
Packaging Coils or straight rods

Product Attributes
Attribute Options / Description
Alloy Grade 420 / 420S / ER420 / ER420S / SUS420 / SUS420S / WNR 1.4021 / 1.4028 / SS420
Material Type Martensitic Stainless Steel
Product Form Welding Rod / Welding Wire
Diameter 0.8 - 5.0 mm (customizable)
Diameter Tolerance ±0.01 mm
Length 250 - 1000 mm (customizable)
Surface Finish Bright, Polished
Packaging Type Coil, Bundle, Straight Rods
Melting Point Approx. 1420-1450 °C
Corrosion Resistance Moderate industrial corrosion resistance
Strength / Mechanical Property High hardness and strength
Welding Method TIG (GTAW), MIG (GMAW), Manual Welding
Heat Treatment Annealed, As-drawn
Certification ISO 9001, RoHS, REACH (optional)
Special Coating Optional anti-oxidation coating
Application Environment Industrial, Cutlery, Tools, Wear-Resistant Components
Customizable Length & Diameter Any within standard ranges, special sizes on request

Applications
  • Cutlery, knives, and scissors
  • Industrial tools and blades
  • Valves, pumps, and shafts
  • Wear-resistant mechanical components
  • General martensitic stainless steel fabrication

Key Features
  • High hardness and mechanical strength
  • Moderate corrosion resistance in industrial applications
  • Smooth and uniform weld bead
  • Low-carbon variant (420S) improves weldability
  • Compatible with manual and automated welding processes
  • Easy handling and processing
  • Suitable for most 400-series martensitic stainless steels
  • Long service life in high-wear applications

Get in Touch

Have questions about our products or want to discuss a custom order? Our team is ready to help you.

Company Huona (Shanghai) New Material Co., Ltd.
Location 1900 Mudanjiang Road, Baoshan District, 201999, Shanghai, China
Contact Person Roy

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