ER410NiMo Welding Wire
The COREWELD 410NiMo datasheet lists technical specifications, chemical composition, mechanical properties, and available product dimensions. The COREWELD 310 datasheet lists technical specifications, chemical composition, mechanical properties, and available sizes for ER310 welding wire. The COREWELD 312 datasheet sets out technical specifications, chemical composition, mechanical properties, and available sizes for ER312 welding wire.
ER410NiMo is a martensitic stainless steel filler metal per AWS 5.9. The composition contains chromium, nickel and molybdenum. It is used to weld suitable martensitic stainless steels where the qualifying technique demands a combination of strength, toughness and corrosion resistance. Nickel improves toughness after heat treatment, and molybdenum adds wear resistance and strength that straight 13% chromium alone does not deliver. It is used for compatible martensitic stainless steel components where the qualified welding procedure requires these properties. The correct filler metal for any given component still depends on base material, service environment, heat treatment, and the approved welding procedure.
FW-410NiMo Stainless Steel Welding Wire, 410NiMo Welding Wire Supplier
ER410NiMo welding wire provides high yield strength, greater impact toughness and improved cavitation resistance for important repairs to martensitic stainless steel.
- The additions of nickel and molybdenum greatly enhance the toughness and strength over standard 410 filler alloys.
- Martensitic microstructure offers excellent resistance to cavitation erosion, abrasion and mechanical wear.
- Alloy chemistry that is controlled will lessen susceptibility to hydrogen-assisted cracking with correct interpass temperatures.
- The optimised post weld heat treatment response provides predictable hardness and ductility in heavy section weldments.
- Smooth arc transfer properties provide sound, radiographic-quality deposits on high pressure turbine components.
Technical Specifications of COREWELD 410NiMo
COREWELD 410NiMo ER410NiMo welding wire carries AWS A5.9 classification, with specification details set out below.
| Specification | Details |
| Brand | COREWELD 410NiMo |
| Product Name | ER410NiMo Welding Wire |
| AWS Classification | ER410NiMo |
| Material Type | Martensitic Stainless Steel Filler Metal |
| Main Alloying Elements | Chromium (Cr), Nickel (Ni), and Molybdenum (Mo) |
| Welding Process | GMAW, GTAW, and SAW (MIG, TIG, and Submerged Arc Welding) |
| Applicable Standard | Certified to AWS A5.9 and ASME SFA A5.9 |
| Available Diameters | GMAW: 0.030 in (0.80 mm), 0.035 in (0.90 mm), 0.045 in (1.20 mm), 1/16 in (1.60 mm) GTAW: 0.035 in (0.90 mm), 0.045 in (1.20 mm), 1/16 in (1.60 mm), 3/32 in (2.40 mm) SAW: 3/32 in (2.40 mm), 1/8 in (3.20 mm), 5/32 in (4.00 mm), 3/16 in (4.80 mm) |
| Base Material Compatibility | Primarily used to weld cast and wrought materials of similar chemical composition. |
Chemical Composition of 410NiMo Welding Wire
The following table summarizes the chemical composition of ER410NiMo.
| Element | Composition |
| Carbon (C) | 0.06% max (typical AWS A5.9 range) |
| Chromium (Cr) | 11.0-12.5% (typical AWS A5.9 range) |
| Nickel (Ni) | 4.0-5.0% (typical AWS A5.9 range) |
| Molybdenum (Mo) | 0.40-0.70% (typical AWS A5.9 range) |
| Manganese (Mn) | 0.60% max |
| Silicon (Si) | 0.50% max |
| Phosphorus (P) | 0.03% max |
| Sulfur (S) | 0.03% max |
Mechanical Properties of FW-410NiMo Stainless Steel Welding Wire
| Property | Value |
| Tensile Strength | 118,000 psi (Typical for MIG using Argon + 2% O2 and TIG using 100% Argon) |
| Yield Strength | 92,000 psi (Typical for MIG using Argon + 2% O2 and TIG using 100% Argon) |
| Elongation | 20% (Typical for MIG using Argon + 2% O2 and TIG using 100% Argon) |
| Heat Treatment Requirements | Recommended preheat and inter-pass temperature of not less than 300°F. Post-weld heat treatment (PWHT) should not exceed 1150°F (higher temperatures may result in hardening). |
Equivalent Grades for ER410NiMo Welding Wire
| Standard | Designation |
| AWS / ASME | ER410NiMo (AWS A5.9 / SFA-5.9) |
| Related Base Metal (UNS) | S41500 (13Cr-4Ni-Mo martensitic stainless) |
Applications of 410NiMo Stainless Steel Welding Wire
ER410NiMo welding wire is used for compatible martensitic stainless steel components where the qualified welding procedure requires suitable strength, toughness, and corrosion resistance. Typical applications include:
- Hydro-turbine runner and component repair
- Pump casings and impellers in compatible martensitic stainless
- Valve bodies requiring combined strength and corrosion resistance
- Shaft and wear-component overlay welding
- Repair welding of compatible 410NiMo-grade castings
- Components subject to heat treatment after welding
Manufacturing Process of 410NiMo Stainless Steel Welding Wire
Production of ER410NiMo welding wire involves controlled alloying, forming, drawing, and dimensional inspection to achieve the specified filler-metal composition and dimensions.
- Alloying to the target chromium-nickel-molybdenum balance
- Controlled hot working to manage the martensitic transformation
- Cold drawing through successive dies to finished diameter
- Straightening, cutting, and spooling or cut-length packing
- Chemistry and dimensional verification against AWS A5.9
Why Choose COREWELD 410NiMo Welding Wire?
COREWELD 410 NiMo carries a verified AWS A5.9 classification, with available product forms, dimensions, and packaging confirmed on the official datasheet rather than left to assumption. Product-selection support is available where confirmed, covering base-material compatibility and heat-treatment questions ahead of an order. Review the datasheet before specifying this filler metal on a martensitic stainless component, particularly where post-weld heat treatment is part of the component’s service requirement. No claims are made about certifications, quality guarantees, manufacturing capabilities, or stock availability beyond what is documented.
Supply Options and Technical Support for ER410NiMo
Enquiries cover confirmed wire dimensions, packaging, and order quantities once the base-material grade and application are known. Share the base material grade, intended application, and welding requirements when requesting product information, so technical support can confirm the right product form against the datasheet.
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FAQ's
What is ER410NiMo welding wire used for?
It welds compatible martensitic stainless components such as pump, valve, and turbine parts needing strength plus corrosion resistance.
What is the difference between ER410NiMo and ER410 welding wire?
ER410NiMo adds nickel and molybdenum for improved toughness and strength; standard ER410 doesn’t carry these additions.
Which stainless steel grades are compatible with ER410NiMo?
Compatible martensitic Cr-Ni-Mo grades, subject to confirmation against the welding procedure specification.
What are the main alloying elements in ER410NiMo welding wire?
Chromium, nickel, and molybdenum, in the ranges set out in the composition table above.
Does ER410NiMo welding require preheating or post-weld heat treatment?
Yes, given its martensitic transformation; confirm exact requirements against the qualified welding procedure.
Which standard applies to ER410NiMo welding wire?
AWS A5.9 / ASME SFA-5.9, subject to certification on the product datasheet.