70# steel is suitable for manufacturing small sections, strength requirements are not high, the general machine on the round, square spiral spring, such as cars, tractors, trains, and other mechanical bearing vibration of the flat plate spring and round spiral spring.
70# tempering 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
70# steel can be used as spring steel, with high carbon content, high hardness, high brittleness, high manganese content, and good toughness
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FAQ
Q: Are you a trading company or manufacturer?
A: We are a factory. Customers will customize products from our company. In our factory, you can check everything and rest assured of the quality of the products. We sincerely hope to cooperate with you.
Q: How long is your delivery time?
A: Generally it is 10-20 days if the goods are in stock. or it is 20-30days if the goods are not in stock, it is according to quantity.
Q: Do you provide samples? is it free or extra?
A: Our company will decide whether to provide samples according to the quantity of steel wire customized by you. If the quantity of customized steel wire is large, we will provide samples for free. On the contrary, we cannot provide samples for free.
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