Henan Friend Metal Products Co., Ltd. is one of the leading manufacturers and suppliers of carbon spring steel wire for significant use in China. If you're going to buy carbon spring steel wire for significant use made in China, welcome to get more information from our factory. We also accept customized orders.
Classification and diameter range of wire:
Group E: 0.08 to 6.00 mm
Group F: 0.08 to 6.00 mm
Group G: 1.00 to 6.00 mm
Common grades and chemical composition:
Grade | chemical composition % | |||||||
C | Mn | Si | no more than | |||||
P | S | Cr | Ni | Cu | ||||
65Mn | 0.62~0.69 | 0.70~1.20 | 0.17~0.37 | 0.025 | 0.020 | 0.10 | 0.15 | 0.20 |
70 | 0.67~0.74 | 0.30~0.80 | 0.17~0.37 | 0.025 | 0.020 | 0.10 | 0.15 | 0.20 |
T9A | 0.85~0.93 | ≤0.40 | ≤0.35 | 0.025 | 0.020 | 0.10 | 0.12 | 0.20 |
T8MnA | 0.80~0.89 | 0.40~0.60 | ≤0.35 | 0.025 | 0.020 | 0.10 | 0.12 | 0.20 |
Torsion test requirements:
Group distancemm | E: not less than | F: not less than | G:not less than |
≤2.00 | 25 | 18 | 20 |
＞2.00~3.00 | 20 | 13 | 18 |
＞3.00~4.00 | 16 | 10 | 15 |
＞4.00~5.00 | 12 | 6 | 10 |
＞5.00~6.00 | 8 | 4 | 6 |
Decarburization layer：
G group of steel wire decarburization test, the decarburization depth does not exceed the wire diameter of 1.0%
Companies specializing in the production and sale of various specifications, a variety of materials, spring steel wire, alloy steel wire, shaped steel wire, carbon steel wire and other parts. Company's products through the ISO-9001 quality system certification, widely used in machinery manufacturing, light industry, hardware, standard parts, automobile manufacturing and other machinery industry. The company a variety of machine tools and hardness, decarburization, tensile strength, and other testing equipment. Company to "build first-class enterprises to create first-class products first-class service" business philosophy, products sold to all regions and some foreign cities, in the Customers have a good reputation. I welcome the industry to call the industry to post advice, will give the most timely and most satisfied with the reply!
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