AISI 440C

Stainless steels are high-alloy steels which have high corrosion resistance compared to other steels due to the presence of large amounts of chromium. Based on their crystalline structure, they are divided into three types such as ferritic, austenitic, and martensitic steels. Another group of stainless steels are precipitation-hardened steels. They are a combination of martensitic and austenitic steels.
Grade 440C stainless steel is a high carbon martensitic stainless steel. It has high strength, moderate corrosion resistance, and good hardness and wear resistance.

Chemical Composition

Element	Content(%)
Iron, Fe	79.15
Chromium, Cr	17
Carbon, C	1.1
Manganese, Mn	1
Silicon, Si	1
Molybdenum, Mo	0.75

Mechanical Properties

Properties	Metric	Imperial
Tensile strength	760-1970 MPa	110000-286000 psi
Yield strength (@ strain 0.200%)	450-1900 MPa	65300-276000 psi
Bulk modulus	166 GPa	24100 ksi
Shear modulus	83.9 GPa	12200 ksi
Elastic modulus	200 GPa	29008 ksi
Poisson's ratio	0.27-0.30	0.27-0.30
Elongation at break	2-14 %	2-14 %
Hardness, Rockwell B (converted from Brinell hardness)	97	97

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 440C Equivalent Grade / Specifications

AMS 5618

AMS 5630

AMS 5880

ASTM A276

ASTM A314

ASTM A473

ASTM A493

ASTM A580

DIN 1.4125

QQ S763

MIL-S-862

SAE 51440C

SAE J405 (51440C)

AISI 440C 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.