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Black Annealed Steel Wire
Black annealed wire is also called black iron wire，soft annealed wire and annealed iron wire.It includes annealed wire and black oiled wire.Annealed wire is obtained by means of thermalannealing. It's made of carbon steel wire. Annealed wire offers excellent flexibility and softness through the process of oxygen free annealing. And the black oiled wire is formed via the process of wire-drawing, anneal, and fuel oil injection. We can do it into straight cutting wire and also do according to customers' special requirement.
Production process：
The hot metal billet is rolled into steel bar, that is, wire rod, and then put it into the wire drawing device to draw wires with different diameters, gradually reduce the aperture of the wire drawing disc, and carry out cooling, annealing,plating and other processing processes to make iron wires of different specifications. It contains iron, cobalt, nickel, copper,carbon, zinc and other elements.
Hard drawn wire
Hard drawn wire feature the unique characteristic of being able to withstand considerable twisting or bending forces without any distortion. Products made from these steel alloys can be bent, compressed, extended, or twisted continuously, and they will return to their original shape without suffering any deformation. This characteristic is defined as high yield strength and is the result of the specific composition and hardening of the steel alloy. Spring steels are medium-to-high carbon content alloys generally featuring a carbon content of 0.5 to 1.0 percent. The other alloy additives typically include manganese and silicone with silicone being the key component in high yield strengths.
Service:
1. Pre-Sales Service
Because the metal price market changes quickly, the specific price is determined according to the company's inventory and the current market situation, if you have demand, please feel free to contact customer service.
We can offer one free sample with freight collected, if you want to buy our products and takeour price. We're online 24 hours a day
2. After-Sales Service
Quality/Quantity Claims: The Buyer is entitled to make both quality and quantity claim in writing against the Seller within 90 days after arrival at the port of destination.
Strict Quality Control:
1. During and after production, 4 QC staffs with more than 5 years experience inspect products in random.
2. National accredited laboratory with CNAS certificates
3. Acceptable inspection from third party appointed/paid by buyer, such as SGS, BV.
