Material Grades

Complete Material Specifications

Detailed chemical composition, mechanical properties, and industrial applications for all our material grades. Data per ASTM, EN, and DIN standards.

Austenitic stainless grades offering excellent corrosion resistance, weldability, and hygienic surfaces for process, food, and architectural applications.

GradeUNSYieldTensileMax Temp
304 / 304LS30400 / S30403205 MPa (min)515 MPa (min)-196°C to +800°C
316 / 316LS31600 / S31603205 MPa (min)515 MPa (min)-196°C to +800°C
321 / 321HS32100 / S32109205 MPa (min)515 MPa (min)-196°C to +900°C
310SS31008205 MPa (min)515 MPa (min)Up to +1100°C

304 / 304L

S30400 / S304031.4301 / 1.4307, X5CrNi18-10

Food processing, chemical equipment, architectural trim, heat exchangers, domestic water systems.

Chemical Composition (% max unless stated)

C 0.08 / 0.03 maxSi 1.00 maxMn 2.00 maxCr 18.0–20.0Ni 8.0–10.5N 0.10 max

Mechanical Properties

Yield Strength
205 MPa (min)
Tensile Strength
515 MPa (min)
Elongation
40% (min)
Hardness
201 HBW max
Service Temp: -196°C to +800°C

Excellent weldability with all standard processes. 304L recommended for welded construction to avoid sensitization.

316 / 316L

S31600 / S316031.4401 / 1.4404, X5CrNiMo17-12-2

Marine environments, chemical processing, pharmaceutical equipment, pulp & paper, desalination plants.

Chemical Composition (% max unless stated)

C 0.08 / 0.03 maxSi 1.00 maxMn 2.00 maxCr 16.0–18.0Ni 10.0–14.0Mo 2.0–3.0

Mechanical Properties

Yield Strength
205 MPa (min)
Tensile Strength
515 MPa (min)
Elongation
40% (min)
Hardness
217 HBW max
Service Temp: -196°C to +800°C

Molybdenum addition improves pitting and crevice corrosion resistance. 316L preferred for welded fabrication.

321 / 321H

S32100 / S321091.4541 / 1.4940, X6CrNiTi18-10

Aircraft exhaust, expansion joints, superheater tubes, high-temperature process piping.

Chemical Composition (% max unless stated)

C 0.08 maxCr 17.0–19.0Ni 9.0–12.0Ti 5×C–0.70

Mechanical Properties

Yield Strength
205 MPa (min)
Tensile Strength
515 MPa (min)
Elongation
40% (min)
Hardness
217 HBW max
Service Temp: -196°C to +900°C

Titanium stabilization prevents chromium carbide precipitation during welding and high-temperature service.

310S

S310081.4845, X8CrNi25-21

Furnace parts, heat-treatment baskets, radiant tubes, kiln components, high-temperature gas service.

Chemical Composition (% max unless stated)

C 0.08 maxCr 24.0–26.0Ni 19.0–22.0Si 1.50 max

Mechanical Properties

Yield Strength
205 MPa (min)
Tensile Strength
515 MPa (min)
Elongation
40% (min)
Hardness
217 HBW max
Service Temp: Up to +1100°C

Excellent high-temperature oxidation resistance. High chromium and nickel content provide a protective oxide scale.