AISI 1055 Carbon Steel

Yide Foundry producing AISI 1055 SAE UNS G10550 Carbon Steel castings. Today, we will introduce the chemical composition, physical and mechanical properties and equivalent material grades of AISI 1055. The following sections will give you an overview of AISI 1055 carbon steel in details.

Chemical Composition of AISI 1055 carbon steel

ElementContent (%)
Iron, Fe98.41-98.9
Manganese, Mn0.60-0.90
Carbon, C0.50-0.60
Sulfur, S≤ 0.050
Phosphorous, P≤ 0.040


Physical Properties of AISI 1055 carbon steel

Density7.85 g/cm30.284 lb/in3


Mechanical Properties of AISI 1055 carbon steel

Tensile strength, ultimate660 MPa95700 psi
Tensile strength, yield560 MPa81200 psi
Modulus of elasticity190-210 GPa29700-30458 ksi
Bulk modulus (typical for steel)140 GPa20300 ksi
Shear modulus (typical for steel)80 GPa11600 ksi
Poissons ratio0.27-0.300.27-0.30
Elongation at break (in 50 mm)10%10%
Reduction of area40%40%
Hardness, Brinell197197
Hardness, Knoop (converted from Brinell hardness)219219
Hardness, Rockwell B (converted from Brinell hardness)9292
Hardness, Rockwell C (converted from Brinell hardness. Value below normal HRC range, for comparison purposes only)1313
Hardness, Vickers (converted from Brinell hardness)207207
Machinability (based on AISI 1212 steel. as 100 machinability)5555


Thermal Properties of AISI 1055 carbon steel

Thermal expansion co-efficient11 µm/m°C6.11 µin/in°F
Thermal conductivity49.8 W/mK346 BTU in/hr.ft2.°F


Other Designations of AISI 1055 carbon steel

Other designations that are equivalent to AISI 1055 carbon steel are as follows: DIN 1.1209, ASTM A29, ASTM A510, ASTM A576, ASTM A682, FED QQ-S-700 (1055), SAE J403, SAE J412, SAE J414

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