AISI 440B

Stainless steels are high-alloy steels with good corrosion resistance because of large amounts of chromium present in them. About 10% of chromium is present in most stainless steels.
Stainless steels are available in three different groups based on their crystalline structure. These groups include martensitic, austenitic and ferritic. The combination of martensitic and ferritic steels forms a fourth group of stainless steels known as precipitation-hardened steels.
Grade 440B stainless steel is a high carbon martensitic stainless steel containing good strength, moderate corrosion resistance and ability to obtain and maintain wear resistance and excellent resistance.

Chemical Composition

Element	Content(%)
Iron, Fe	80
Chromium, Cr	16.0-18.0
Manganese, Mn	1.0
Silicon, Si	1.0
Carbon, C	0.75-0.95
Molybdenum, Mo	0.75
Phosphorous, P	0.040
Sulfur, S	0.030

Mechanical Properties

Properties	Metric	Imperial
Elastic modulus	190-210 GPa	27557-30458 ksi
Poisson's ratio	0.27-0.30	0.27-0.30

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 440B Equivalent Grade / Specifications

AISI 440B

ASTM A276

ASTM A314

ASTM A473

DIN 1.4112

QQ S763

FED QQ-S-763

MIL SPEC MIL-S-862

SAE J405 (51440B)

SAE 51440B

ASTM A580

AISI 440B 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.