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ER420 Martensitic Stainless Steel Welding Wire 0.8mm 1.0mm 1.2mm 1.6mm 15kg MIG Spool Filler Metal
| Place of Origin | China |
|---|---|
| Brand Name | HUONA |
| Certification | ISO 9001:2015 |
| Model Number | ER420 |
| Minimum Order Quantity | 15 kg (1 spool) |
| Price | USD 8-15 / Kilogram |
| Packaging Details | 15kg spool vacuum packed with desiccant, VCI paper, export wooden case or pallet |
| Delivery Time | 7-15 working days after deposit |
| Payment Terms | T/T,L/C,Western Union |
| Supply Ability | 100 Tons per Month |
Product Details
| Wire Diameter | 0.8mm, 1.0mm, 1.2mm, 1.6mm | Tensile Strength | 900 MPa |
|---|---|---|---|
| Yield Strength | 700 MPa | Elongation | 15% |
| Hardness | HRC 48-52 After Tempering | Melting Range | 1450-1500 °C |
| Spool Weight | 15 Kg MIG / 5 Kg TIG Tube | Shielding Gas | 98% Ar + 2% CO2 (MIG) |
| Highlight | ER420 Martensitic Stainless Filler Wire,Cavitation Erosion Resistant Weld Wire,Hardfacing Stainless MIG Spool |
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Product Description
ER420 Martensitic Stainless Steel Welding Wire
ER420 is a 13% chromium martensitic stainless filler metal with approximately 0.30% carbon, matching AISI 420 and closely related to 410 and 416 base metals. The deposit responds strongly to heat treatment, reaching HRC 48-52 after quenching and tempering, and delivers good resistance to cavitation, erosion and mild corrosive service. It is the standard filler for rebuilding steam turbine blades, pump impellers, valve seats, moulds and cutlery grade tooling.
Key Features
- Matching chemistry for AISI 420, 410, 416 and 403 martensitic stainless steels
- Hard, wear resistant deposit that responds to hardening and tempering
- Excellent cavitation erosion resistance for hydraulic and steam service
- Stable arc, low spatter and smooth feed on MIG and TIG equipment
- Available in 0.8 mm, 1.0 mm, 1.2 mm and 1.6 mm on 15 kg spools, plus 5 kg TIG tubes
Typical Applications
- Repair and overlay of steam turbine blades, runners and impellers
- Valve seats, gates and trim requiring hardness with corrosion resistance
- Plastic moulds, dies and wear plates needing a hard, polishable surface
- Cutlery, surgical instruments and food processing tooling in 420 grade
- Joining and rebuilding of 410 and 416 stainless components
Welding Guidance
Preheat 200-300 °C for sections over 10 mm, maintain interpass temperature below 350 °C, and temper at 300-400 °C after welding to relieve martensitic stresses. Use 98% Ar + 2% CO2 shielding gas for MIG, or pure argon for TIG.
Technical Specification
| Classification | AWS A5.9 ER420 |
| Carbon (C) | 0.25 - 0.35% |
| Chromium (Cr) | 12.0 - 14.0% |
| Manganese (Mn) | ≤ 1.0% |
| Silicon (Si) | ≤ 0.6% |
| Nickel (Ni) | ≤ 0.6% |
| Wire Diameter | 0.8 mm / 1.0 mm / 1.2 mm / 1.6 mm |
| Tensile Strength | 900 MPa |
| Yield Strength | 700 MPa |
| Elongation | 15% |
| Hardness As Welded | HRC 48 - 52 after tempering |
| Melting Range | 1450 - 1500 °C |
| Spool Weight | 15 kg MIG spool / 5 kg TIG tube |
| HS Code | 7223000000 |
Packing & Delivery
Every 15 kg spool is vacuum packed with desiccant, wrapped in VCI paper and shipped in an export grade wooden case or pallet. TIG wire is supplied in 1 m or 5 kg rigid tubes. Wire diameter, spool type and label can be customised for OEM orders.
Why Buy From Us
- ISO 9001 certified drawing lines with spectrochemical certificate for each heat
- 100 tons monthly capacity, stable lead times for repeat container orders
- Free sample wire for procedure qualification before bulk purchase
Tell us your base metal, wire diameter and spool preference, and we will confirm an ER420 specification and quotation within one working day.
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