SUS321 Stainless Steel: Titanium-Stabilized Welding Grade

Jan 14, 2026

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ASTM 440C Stainless Steel: High-Carbon Martensitic Grade for Maximum Hardness and Wear ResistanceASTM 310S Stainless Steel: Ultra-High-Temperature Austenitic Grade for Severe Heat EnvironmentsASTM 430 Stainless Steel: A Cost-Effective Ferritic Alternative to Austenitic Grades

Grade 321 is the grade of choice for applications in the temperature range of up to about 900 °C, combining high strength, resistance to scaling and phase stability with resistance to subsequent aqueous corrosion.

 

Grade 321H is a modification of 321 with higher carbon content, to provide improved high-temperature strength.

 

A limitation with 321 is that titanium does not transfer well across a high-temperature arc, so it is not recommended as a welding consumable. In this case grade 347 is preferred – the niobium performs the same carbide stabilization task but can be transferred across a welding arc. Grade 347 is, therefore, the standard consumable for welding 321. Grade 347 is only occasionally used as parent plate material.

 

If you have project requirements for Grade 321  stainless steel, we welcome your order. GNEE has a large inventory of popular products for you to choose from. It can be processed into various practical product forms, including plates, coils, tubes, bars, wires, etc. For detailed chemical composition information and free samples, please contact our factory immediately. We offer competitive prices and excellent service.Email: info@gneestainless.com

 

Testing and Documentation: Factory test certificate, EN 10204 3.1, chemical report, mechanical report, destructive testing report, non-destructive testing report, PMI test report, visual inspection report, third-party inspection report, NABL certified laboratory report.
Packaging: Wooden crate packaging, bubble wrap packaging, steel strapping, or packaging according to customer requirements.

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