AISI 6145

AISI 6145

Alloy steel is steel alloyed with various elements in total amounts between 1 and 50% by weight to improve its mechanical properties including wear resistance, toughness, hardness and strength. It is subdivided into two groups namely low alloy steel and high alloy steel. The very low-alloy steels within this group are generally high strength structural steels with a total alloy content of up to 2%. AISI 6150 alloy steel is heat treatable alloy known for its toughness and high strength in the heat treated condition.

Chemical Composition

Element Content(%)
Chromium, Cr 0.8-1.1
Manganese, Mn ≤0.7-0.9
Carbon, C ≤0.43-0.48
Silicon, Si ≤0.2-0.35
Vanadium, V ≥0.15
Phosphorus, P ≤0.04
Sulfur, S ≤0.05

Mechanical Properties

Properties Metric Imperial
Tensile strength 1213 MPa 175900 psi
Yield strength (@0.2%) 1165 MPa 169000 psi
Modulus of elasticity 201-209 GPa 29200-30300 ksi
Bulk modulus 160-170 GPa 23200-24700 ksi
Shear modulus 81-82 GPa 11700-11900 ksi
Poisson’s ratio 0.27-030 0.27-030
Elongation at break 16% 16%
Hardness, Brinell 429 429

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 6145 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.