Docol 420LA High Strength Low Alloy Steel (HSLA)

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 Description

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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    Pre-sale Service

    √1. We provide samples free of charge, but the freight should be paid by the buyer.
    √2. We have full stock,and can deliver within short time.Many styles for your choices.
    √3. OEM and ODM order are accepted, Any kind of logo printing or design are available.
    √4. Good Quality + Factory Price + Quick Response + Reliable Service, is what we are trying best to offer you.
    √5. All of our products are produce by our professional workman and we have our high-work-effect foreign trade team, you can totally believe our service.

    After you choose

    √1. We will count cheapest shipping cost and make invoice to you at once.
    √2. Check quality again, then send out to you at 1-2 working day after your payment
    √3. Email you the tracking no, and help to chase the parcels until it arrive you.

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    FAQ

    Q: Can you send samples?

    A: Of course, we can provide customers with free samples and express shipping service to all over of the world.
    Q: What product information do I need to provide?

    A: Please kindly provide the grade, width, thickness, surface treatment requirement should you have and quantities you need to purchase. 

    Q: It's my first time to import steel products, can you help me with it?

    A: Sure,we have agent to arrange the shipment, we will do it together with you.

    Q: What ports of shipment are there?
    A: Under normal circumstances, we ship from Shanghai, Tianjin, Qingdao, Ningbo ports, you can specify other ports according to your needs. 

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    A: Prices various according to periodic price changes of raw materials. 

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    A: Payment<=1000USD, 100% in advance. Payment>=1000USD, 30% T/T in advance ,balance before shipment or based on BL copy or LC at sight.

    Q: Do you provide custom made Products service?

    A: Yes,if you have your own design , we can produce according to your specification and drawing.

    Q: What are the certifications for your products?

    A: We have ISO 9001, MTC, third parties’ inspections are all available such SGS, BV ect.

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