Docol 355HE High Edge Ductility Steel (HE)
Docol 355 high edge ductile steel is a hot-rolled high-strength alloy with superior local formability. It is a pure steel of fine metallographic structure that adopts a new and tightly controlled method.
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Docol HE is a new range of hot-rolled advanced high-strength steels with greatly improved edge ductility for automotive manufacturers facing production technology challenges. The advantages of Docol HE include improved edge ductility, local formability, and substantial increases in shear edge quality and hole expansion ratio. This reduces scrap, increases cost-efficiency, and enables the development of new and innovative components that take full advantage of the properties of steel. Various chassis components, consoles, seats, as well as driveline parts, clutches are the common automotive parts suitable for Docol 355 high edge ductile steel. Compared with the traditional HSLA grade, this new production method has improved the quality of cutting edges, and the steel can well adapt to the requirements of mold adjustment and wear resistance, so it is suitable for precision blanking.

 

Mechanical Properties

Yield Strength Rp0.2 (MPa)Tensile Strength Rm (MPa)Extension Rate A80( min%)Extension Rate A5( min%)Reaming(% typical)90 ° Bend the MostSmall Bend Inner Diameter
355430-54019231100.0xt

 

Chemical Composition

C (max %)Si (max %)Mn(max %)P (max %)S(max %)Everything( %)Nb(max %)V(max%)Ti(max %)
0.100.031.500.0250.0100.0150.090.200.15


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1. How to get samples to check the quality? How long can I get the samples?
 After the price is confirmed, samples can be provided for your evaluation. After confirming the sample details, the samples will be ready for delivery within 3-7 days, and sent to you by courier, and arrive within 3-5 days.
2.Do you provide samples ? is it free or extra ?
Answer:The sample could can provide for customer with free,but the courier freight will be covered by customer account.
3. Do you accept the third party inspection?
Answer: Yes absolutely we accept.
4.Can you accept customization?
Answer:Yes. If you have special requirements on products or packages, we can do customization for you.
5.How do you control the quality?
Answer:We have professional inspectors to analyze chemical composition of raw materials and test the finished products strictly according to standard stipulated in the contract.  In this process, Internal and external surfaces, two ends appearance, bending degree, fixed length, outer diameter and wall thickness dimension etc will be checked one by one.  You can be assured that all the products you get from us are reliable.