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XM21 stainless steel

XM-21 stainless steel is based on 304 stainless steel and adds nitrogen and niobium elements. This improvement not only maintains the plasticity of the steel, improves the strength and work hardening tendency, but also enhances the resistance to pitting corrosion and intergranular corrosion. The following will introduce in detail the characteristics, composition content, mechanical properties, heat treatment and application fields of XM-21 stainless steel.

XM-21 stainless steel features:

Perfect balance of strength and corrosion resistance: The addition of nitrogen and niobium increases the strength of the steel and enhances the corrosion resistance, making it perform well in high strength requirements and corrosive environments.

Prevent plasticity from decreasing: The plasticity of steel is maintained after adding elements, ensuring its processing performance.

Improved pitting and intergranular corrosion resistance: The new formula makes the steel more reliable in corrosive environments.
chemical composition
Elements Min.(≥) Max.(≤) Similar Remarks
C - 0.08    
Si - 1.00    
Mn - 2.00    
P - 0.045    
S - 0.03    
Cr 18.0 20.0    
Ni 8.00 10.5    
N 0.16 0.30    
GNEE XM21 stainless steel brand
Category Type Grade Microstructure Designations
Grades Stainless Steels XM-21 Austenite USA - UNS , SAE J 405 (1998) - Chemical compositions of SAE wrought stainless steels
 
Grade Standard Country Application
A 240 Type XM-21 SAE USA Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and for General Applications
A 276 XM-21 SAE USA Stainless Steel Bars and Shapes
A 959 Type XM-21 SAE USA Standard Guide for Specifying Harmonized Standard Grade Compositions for Wrought Stainless Steels
SA-276 XM-21 AMS USA Specification for Stainless Steel Bars and Shapes
XM-21 UNS USA Chemical compositions of SAE wrought stainless steels
A 240 S30452 SAE USA Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and for General Applications
A 276 S30452 SAE USA Stainless Steel Bars and Shapes
S30452 AISI USA Austenitic Chromium Nickel Stainless Steel
SA-240 S30452 AMS USA Specification for Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and for General Applications
A 240 S30452 SAE USA Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and for General Applications
A 276 S30452 SAE USA Stainless Steel Bars and Shapes
S30452 AISI USA Austenitic Chromium Nickel Stainless Steel
SA-240 S30452 AMS USA Specification for Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and for General Applications
GNEE XM21 Form of Supply

Type XM-21 - Form of Supply

Product type Products Dimension Processes Deliver Status
Plates / Sheets Plates / Sheets 0.08-200mm(T)*W*L Forging, hot rolling and cold rolling Annealed, Solution and Aging, Q+T, ACID-WASHED, Shot Blasting
Steel Bar Round Bar, Flat Bar, Square Bar Φ8-1200mm*L Forging, hot rolling and cold rolling, Cast Black, Rough Turning, Shot Blasting,
Coil / Strip Steel Coil /Steel Strip 0.03-16.0x1200mm Cold-Rolled & Hot-Rolled Annealed, Solution and Aging, Q+T, ACID-WASHED, Shot Blasting
Pipes / Tubes Seamless Pipes/Tubes, Welded Pipes/Tubes OD:6-219mm x WT:0.5-20.0mm Hot extrusion, Cold Drawn, Welded Annealed, Solution and Aging, Q+T, ACID-WASHED
Other Terms
Packaging Details: Standard export seaworthy packing or as required.
Delivery Time: 30-50 days, 7 days for stock goods.
Loading Port: Shanghai ,Tianjin, Qingdao.
Offer Ability:5 000MT/Per Month.
MOQ: 1 Pcs.
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