AISI 4047

AISI 4047

Alloy steels consist of a broad spectrum of steels whose compositions surpass the limitations of C, Mo, Cr, Va, Mn, Ni, Si, and B which have been determined for carbon steels. In general, these steels are more responsive to mechanical and heat treatments than carbon steels.

Chemical Composition

Element Content(%)
Iron, Fe 97.87-98.51
Manganese, Mn 0.70-0.90
Carbon, C 0.45-0.50
Molybdenum, Mo 0.20-0.30
Silicon, Si 0.15-0.35
Sulfur, S 0.040
Phosphorous, P 0.035

Mechanical Properties

Properties Metric Imperial
Elastic modulus 190-210 GPa 27557-30458 ksi
Bulk modulus (typical for steel) 140 GPa 20300 ksi
Shear modulus (typical for steel) 80 GPa 11600 ksi
Poisson’s ratio 0.27-0.30 0.27-0.30
Hardness, Brinell 179-229 179-229
Hardness, Knoop (converted from Brinell hardness) 226 226
Hardness, Rockwell B (converted from Brinell hardness) 93 93
Hardness, Rockwell C (converted from Brinell hardness, value below normal HRC range, for comparison purposes only) 14 14
Hardness, Vickers (converted from Brinell hardness) 214 214
Machinability (annealed and cold drawn, based on 100 machinability for AISI 1212 steel) 65 65

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 4047 Equivalent Grade / Specifications


ASTM A29

ASTM A331

ASTM A519

ASTM A752

SAE J1397

SAE J404

ASTM A322

SAE J412

SAE J770

AISI 4047 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.