AISI 348

AISI 348

AISI 348

Stainless steels have high corrosion resistance when compared to other steels due to the presence of large amounts of chromium. Based on their crystalline structure, they are further divided in to ferritic, austenitic, and martensitic steels. Grade 348 stainless steel is similar to that of 321 stainless steel. It uses stabilizing elements such as columbium or tantalum to increase intergranular corrosion resistance. The following datasheet gives an overview of grade 348 stainless steel.

Chemical Composition

Element Content(%)
Iron, Fe 66
Chromium, Cr 19
Nickel, Ni 11
Manganese, Mn 2.0
Silicon, Si 1.0
Nb + Ta 0.8
Cobalt, Co 0.2
Tantalum, Ta 0.1
Carbon, C 0.080
Phosphorous, P 0.045
Sulfur, S 0.030

Mechanical Properties

Properties Metric Imperial
Tensile strength 655 MPa 95000 psi
Yield strength (@ strain 0.200%) 275 MPa 39900 psi
Izod impact 120 - 160 J 88.5 - 118 ft-lb
Charpy impact 160 J 118 ft-lb
Shear modulus (typical for steel) 77.0 GPa 11200 ksi
Elastic modulus 190-210 GPa 27557-30458 ksi
Poisson's ratio 0.27-0.30 0.27-0.30
Elongation at break (in 50 mm) 45% 45%
Hardness, Brinell (converted from Rockwell B hardness) 147 147
Hardness, Knoop (converted from Rockwell B hardness) 164 164
Hardness, Rockwell B 85 85
Hardness, Vickers (converted from Rockwell B hardness) 169 169

Sheets / Plates

Production Route Hot Rolled, Cold Rolled
Material Standard AISI, ASTM, ASME, DIN, BS, EN, ISO, JIS, GOST, SAE, IS & Custom Chemistry
Size Width from 100mm to 3000mm ; Length from 500mm to 12000mm
Thickness 0.1mm to 400mm
Delivery Condition As Rolled, Annealed, Quenched and Tempered, Normalized
Surface Finish Plain, Brushed, Cladded

AISI 348 Equivalent Grade / Specifications

ASTM A167

ASTM A312

ASTM A479

QQ S766

ASME SA376

ASTM A182

ASTM A314

ASTM A580

ASME SA182

ASME SA403

ASTM A213

ASTM A336

ASTM A632

ASME SA213

ASME SA409

ASTM A240

ASTM A358

ASTM A813

ASME SA240

ASME SA479

ASTM A249

ASTM A376

ASTM A814

ASME SA249

MIL-S-23196

ASTM A269

ASTM A403

DIN 1.4550

ASME SA312

SAE 30348

ASTM A276

ASTM A409

MIL S-23195

ASME SA358

SAE J405 (30348)

AISI 348 Applications

1) Structures in Buildings, bridges, railway stations.

2) Fabrication of pipeline components & Industrial equipment.

3) Construction of automotive bodies, warehouses, shipping containers.

4) Commercial appliances, etc.