AISI SAE 1070 Carbon Steel Coil

PRODUCT DESCRIPTION

AISI SAE 1070 Carbon Steel Coils.SAE 1070 is a high carbon water or oil hardening tool and low hardenability Spring Steel. It is used for railroad and street railroad rails, heavy machinery parts, shafts, springs and a variety of manual and machine tools requiring strength and wear resistance. This data sheet provides information on composition, physical properties, hardness, elastic and tensile properties, and fracture toughness. It also includes information on corrosion resistance as well as forming, heat treating, machining and joining
SAE is the Society of Automotive Engineers.
SAE1070 is a steel number in the United States. It is a kind of spring steel, which corresponds to China's No. 70 steel.
No. 70 steel 1.1 Summary: This steel has high strength, but low hardenability, and is suitable for manufacturing springs with small cross-sections (φ≤15mm). Tempering, stress relief. The steel has good machinability and large quenching deformation. It is mainly used for small coil springs, spring sheets, elastic washers, stop rings, etc. without quenching.
Corresponding grade
GB: No. 70 steel
JIS:S70C
ASTM/SAE/AISI:1070
DIN: C70D
chemical composition
Carbon C: 0.67～0.75
Silicon Si: 0.17～0.37
Manganese Mn: 0.50～0.80
Sulfur S: ≤0.035
Phosphorus P: ≤0.035
Chromium Cr: ≤0.25
Nickel Ni: ≤0.30
Copper Cu: ≤0.25
Product Usage
It is used to manufacture round and square coil springs on general machines with small cross-section and low strength requirements, such as flat leaf springs and circular coil springs that are subjected to vibration on machinery such as automobiles, tractors or trains.