Docol 420LA High Strength Low Alloy Steel (HSLA)
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Docol 420LA steel is a high-strength low-alloy steel, which can be supplied as hot-rolled steel and cold-rolled steel. It is supplied with S420MC based on EN 10149-2:2010 standard.

Product Parameters

The main alloying elements of HSLA steel include carbon, manganese, molybdenum, chromium and nickel. The nickel varies according to different HSLA steel grades. The proportion and ratio of these elements all play a crucial role in the performance of HSLA steel. Docol 420LA HSLA improves strength while maintaining good toughness, giving it superior performance in withstanding impact and tensile stress. Besides, HSLA steel has lower alloying element content, which is beneficial to the implementation of welding processes. Through reasonable control of alloying element content, HSLA steel can have a certain corrosion resistance, suitable for engineering structures in corrosive environments. Lastly, Docol 420LA HSLA has good plasticity and malleability, which is conducive to the implementation of various forming processes and reduces manufacturing costs.

 

Mechanical Properties

Steel GradeStandardPlatingTest DirectionYield Strength Rp0.2 (MPa)Tensile Strength Rm (MPa)Extension Rate A80( min%)Minimum Bend Inner Diameter for 90 ° Bend
Docol CR420LAVDA239- 100:2016GI, GA*, ZAL420-520480-600171.0xt
Docol HR420LAVDA239- 100:2016UC, Cam thoL420-520480-60018UC 0.5xt bottleGI 1.0xt

 

Chemical Composition

Steel GradePlatingC (max %)Si (max %)Mn(max %)P (max %)S(max %)Al( min%)Ti(max%)Nb(max %)Cu(max %)
Docol CR420LAGI,GA,ZA0.120.501.650.300.0250.0150.0150.100.20
Docol HR420LAUC0.120.501.600.300.0250.0150.0150.090.20
Docol HR420LAGI0.120.501.600.300.0250.0150.0150.100.20

 

Plating

Plating TypePlating GradeStandardSingle-sided coating quality, single-point test (g/m2)Single side thickness, for reference only(μm)
GI40/40VDA239-10040-605.6-8.5
GI50/50VDA239-10050-707.0-9.9
GI60/60VDA239-10060-908.5-12.7
GI70/70VDA239-10070-1009.9-14.1
GI85/85VDA239-10085-11512.0-16.2
GI115/115VDA239-100115-15516.2-21.8
GA40/40VDA239-10040-605.6-8.5
GA50/50VDA239-10050-807.0-11.3
ZA95As required
7-
ZA130As required
10-


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Product Application

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Product Packaging

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Factory Display

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FAQ

Are you a trading company or a manufacturer ?

We are manufacturer. Every month, we do a procurement for a massive number of steel material from Chinese state owned mill. The total value of steel processing equipment is more than 30 million dollars. Our major products cover all category of steel industry, and it is totally compatible to all kind of world steel standard.

Do you have large amount of steel products in stock ?

Yes, we do. In large-scale indoor warehouses, the total stock value is over 150 millions dollar.

Do you provide the samples ? Free or Extra ?

It is free, depend on the value of the sample. The cost of the freight would be charge.

How long is the delivery time ?

Officially, it is within 7 days. Actually, we can deliver within 3 days. Customized products or non-standard size products would be taken 10-30 days to deliver, depend on the production cycle. Generally, most of the products finished and delivered within 20 days.

Do you accept the third party inspection ?

Absolutely yes!

How could you guarantee your products ?

Each batch of products must have its own factory inspection report. If the third-party inspection report of the product you purchased does not match our factory inspection report, we will resend the goods, and we will carry all the costs by ourselves.

How can I get your quotation as soon as possible ?

You may have many methods to contact us. Email and fax will be checked within 12 hours, and Skype, WeChat and WhatsApp will be online in 24/7. Please send us your requirement, attaching specification (Steel grade, dimension, quantity, destination port) or any you are concerned, you will obtain a competitive price and supply solution soon.

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