Martensitic 410 Stainless Steel Round Bar Application and welding property

410 steel is a kind of martensitic stainless steel. 410 steel can achieve relatively high strength, toughness and corrosion resistance after appropriate heat treatment. 410 steel owns excellent machinability.

Corrosion Resistance for 410 Stainless Steel
Grade 410 stainless steels are resistant to hot gases, steam, food, mild acids and alkalies, fresh water and dry air. These steels obtain maximum corrosion and heat resistance through hardening. However, grade 410 steels are less corrosion resistant than austenitic grades and grade 430 ferritic alloys containing 17% chromium. Smooth surface finish offers improved performance of steels.

Welding for 410 Stainless Steel
Grade 410 steels can be welded using all conventional welding techniques, but the materials should pre-heated at 150 to 260°C followed by post-weld annealing treatment, to mitigate cracking. Grade 410 welding rods are recommended for tempering and post-hardening. In the "as welded" conditions, grade 309 filler rods can be used to achieve a ductile joint.

Machining Welding for 410 Stainless Steel
Grade 410 steels can be easily machined in highly tempered or annealed conditions. However, it is hard to machine grade 410 steels if they are hardened above 30HRC. Free machining grade 416 is the best alternative.

Applications Welding for 410 Stainless Steel
1.Bolts, screws, bushings and nuts
2.Petroleum fractionating structures
3.Shafts, pumps and valves
4.Mine ladder rungs
5.Gas turbines

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