Wholesale Cold Drawn Spring Wire for Mattress

Our company has automated production equipment and advanced testing equipment, and we continuously improve the quality of Valve steel wire JIS G3561, Triangle spring steel wire factory, spring steel wire 65Mn ASTM-A230-99 with a sound quality management system. We will repay customers for their long-term support and trust with better quality and better pre-sales and after-sales services. Look forward to long-term cooperation and mutual benefits! Now we have a dedicated and aggressive sales team, and many branches, catering to our main customers.

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!

With wide experience and expertise, Friend Metal is engaged in the developing, manufacturing and marketing of carbon spring steel wire for significant use ASTM-A230-99, ASTM-A401, EN10270-2, JIS G3561. As a professional manufacturer, we now brings you high quality various steel wires made in China which comes in high strength, well toughness and excellent wearing resistance. We also welcome your customized orders.

We are committed to creating better Wholesale Cold Drawn Spring Wire for Mattress and higher-quality services for our customers, adhering to the simple R&D spirit, insisting on market demand-oriented, and innovative ideas as the driving force. We analyze market information in a timely manner and integrate user feedback to continuously improve product performance and quality. The company has a good reputation and ensure that industry standards, adhering to the 'customer first, service first' business purpose.