70# steel round bar

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11-May-2024

70 # round bar is a kind of Stainless steel bar which is widely used in making higher hardness run part, blade wheel, piston, bearing, gear wheel and so on. If you want to know more about 70 # round bar , please see the following:

70 # round bar Brief introduction:

Name: 70 # round bar
Executive Standard: GB / T 699-1999

Grade:70# C67 CK67 SAE1070 AISI1070 ASTM1070 070A72 XC70

Size:10-200mm
Supply Condition:Hot-rolled Round steel, Bright round steel

Processing: Hot working

70 # round steel chemical composition:

C	Si	Mn	S	P	Cr	Ni	Cu
0.67～0.75	0.17～0.37	0.50～0.80	≤0.035	≤0.035	≤0.25	≤0.30	≤0.25

70 # steel mechanical properties:
Tensile strength σb (MPa) ≥ 715 Yield strength σs (MPa) ≥ 420,
Elongation δ5 (%) ≥ 9 Reduction of ψ (%) ≥ 30,
Hardness HBS: no heat treatment ≤ 269; annealed steel ≤ 229, sample blank size: 25mm

70 # and 65 # steel similar performance, flexibility, and strength is slightly higher, 70-section steel for the manufacture of small, less demanding strength, general machine round, square coil springs, such as cars, tractors or train withstand the vibration of flat leaf spring and coil spring round on machinery.

KUNFENG is a professional 70 # round bar exporter and a round bar Stockist in China. Any need in 70 # round bar, please feel free to contact us by email or calling to us.