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

Element Content (%)
Iron, Fe 98.41-98.9
Manganese, Mn 0.60-0.90
Carbon, C 0.50-0.60
Sulfur, S ≤ 0.050
Phosphorous, P ≤ 0.040


Physical Properties of AISI 1055 carbon steel

Properties Metric Imperial
Density 7.85 g/cm3 0.284 lb/in3


Mechanical Properties of AISI 1055 carbon steel

Properties Metric Imperial
Tensile strength, ultimate 660 MPa 95700 psi
Tensile strength, yield 560 MPa 81200 psi
Modulus of elasticity 190-210 GPa 29700-30458 ksi
Bulk modulus (typical for steel) 140 GPa 20300 ksi
Shear modulus (typical for steel) 80 GPa 11600 ksi
Poissons ratio 0.27-0.30 0.27-0.30
Elongation at break (in 50 mm) 10% 10%
Reduction of area 40% 40%
Hardness, Brinell 197 197
Hardness, Knoop (converted from Brinell hardness) 219 219
Hardness, Rockwell B (converted from Brinell hardness) 92 92
Hardness, Rockwell C (converted from Brinell hardness. Value below normal HRC range, for comparison purposes only) 13 13
Hardness, Vickers (converted from Brinell hardness) 207 207
Machinability (based on AISI 1212 steel. as 100 machinability) 55 55


Thermal Properties of AISI 1055 carbon steel

Properties Metric Imperial
Thermal expansion co-efficient 11 µm/m°C 6.11 µin/in°F
Thermal conductivity 49.8 W/mK 346 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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