When plastic deformation occurs, further stress increase and enough to make pinning dislocation movement, screw dislocation glide, edge dislocation cannot pay slip, thus occurred dislocation, increase the fixed order. Therefore, the hardness and strength of metal materials can be improved by increasing the internal dislocation density of the metal and reducing the mobility of the dislocation, which is difficult to generate dislocation and difficult to move dislocation. This is the metal principle of cold drawing.
2. Product Details
Original: Jiangsu, China.
Material: SAE1020, 20#, ST45, CK45, ST52, E355.
Payment Term: TT, LC.
Delivery Date: Usually 20 to 40 days
Packing: Packed in bundle, with caps on both ends.
Market: Middle East/ Africa/Asia/South America/Europe/North America.
MOQ: Depends on exact size and material.
3. Size List
4. Packaging & Delivery
in bundle, with plastic caps, anti-rusted oiled, with woven bags.
1. Q:Are you a manufacturer, trading company or a third party?
A:We are a manufacturer, and we have built up our company since 2006.
2. Q:If I will need to stay in your place for few days, is that possible to book the hotel for me?
A:It’s always my pleasure, hotel booking service is available.
3. Q:What is your minimum order quantity, can you send me samples?
A: The Exact MOQ depends on your exact requirement. And sample is available.
4. Q:Is your price competitive?
A: Only good quality we supply. Surely we will give you best factory price based on
superior product and service.
5. Q: How is your price level?
A: Factory direct sale, we have whole production line ourselves.
6. Q:What kinds of physical and chemical testing you can provide?
A:The physical and chemical testing we provide include:
Chemical Composition Testing, Physical Property Testing, Hardness Test, Tensile Performance Testing.