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304 S31


304 S31 material is B.S. BS 1449-2 Steel plate, sheet and strip. Specification for stainless and heat-resisting steel plate, sheet and strip B.S. BS 1501-3 Steels for pressure purposes. Specification for corrosion- and heat-resisting steels: plates, sheet and strip B.S. BS 1502 Specification for steels for fired and unfired pressure vessels: sections and bars B.S. BS 1503 Specification for steel forgings for pressure purposes B.S. BS 1506 Specification for carbon, low alloy and stainless steel bars and billets for bolting material to be used in pressure retaining applications B.S. BS 1554 Specification for stainless and heat-resisting steel round wire B.S. BS 3605-1 Austenitic stainless steel pipes and tubes for pressure purposes. Specification for seamless tubes B.S. BS 3605-2 Austenitic stainless steel pipes and tubes for pressure purposes. Specification for longitudinally welded tubes B.S. BS 3606 Specification for steel tubes for heat exchangers B.S. BS 6258 Specification for hollow steel bars for machining B.S. BS 970-1 Specification for wrought steels for mechanical and allied engineering purposes. General inspection and testing procedures and specific requirements for carbon, carbon manganese, alloy and stainless steels B.S. BS 970-3 Specification for wrought steels for mechanical and allied engineering purposes. Bright bars for general engineering purposes Specification for wrought steels for mechanical and allied engineering purposes. Bright bars for general engineering purposes.

Chemical composition of 304 S31, 304 S31 mechanical properties, 304 S31 datasheet, 304 S31 equivalent grade, Heat treatment and temperature process of 304 S31.


304 S31 property sheet

304 S31 Spec.

B.S. BS 1449-2
Steel plate, sheet and strip. Specification for stainless and heat-resisting steel plate, sheet and strip
B.S. BS 1501-3
Steels for pressure purposes. Specification for corrosion- and heat-resisting steels: plates, sheet and strip
B.S. BS 1502
Specification for steels for fired and unfired pressure vessels: sections and bars
B.S. BS 1503
Specification for steel forgings for pressure purposes
B.S. BS 1506
Specification for carbon, low alloy and stainless steel bars and billets for bolting material to be used in pressure retaining applications
B.S. BS 1554
Specification for stainless and heat-resisting steel round wire
B.S. BS 3605-1
Austenitic stainless steel pipes and tubes for pressure purposes. Specification for seamless tubes
B.S. BS 3605-2
Austenitic stainless steel pipes and tubes for pressure purposes. Specification for longitudinally welded tubes
B.S. BS 3606
Specification for steel tubes for heat exchangers
B.S. BS 6258
Specification for hollow steel bars for machining
B.S. BS 970-1
Specification for wrought steels for mechanical and allied engineering purposes. General inspection and testing procedures and specific requirements for carbon, carbon manganese, alloy and stainless steels
B.S. BS 970-3
Specification for wrought steels for mechanical and allied engineering purposes. Bright bars for general engineering purposes

Chemical Composition of 304 S31

C: Max 0.07
Si: Max 1.00
Mn: Max 2.00
P: Max 0.045
S: Max 0.025
Cr: 17.00 19.00
Mo: Max Min
Ni: 8.00 11.00

Mechanical Properties of 304 S31

Rp0.2 (MPa) 948 (≥)
Rm (MPa) 325 (≥)
AKV (J) 13
A (%) 14
Z (%) 24
Hardness HBW 434

304 S31 shape and dimensions

304 S31 Round bar: 1mm-800mm
304 S31 Square bar: 10mm * 10mm-600mm *600mm
304 S31 Flat bar: Thickness:8mm-800mm Width:10mm to 1500mm
304 S31 Sheet or Plate: Thickness:3mm-80mm Width:1.5mm to 1500mm
304 S31 Strip or Coil: Thickness:0.1mm-3mm Width:1.5mm-1500mm
304 S31 Forgings: Shafts with flanks/pipes/tubes/slugs/donuts/cubes/other shapes