Name: Docol 420LA High Strength Low Alloy Steel (HSLA)
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Home > Products > Automotive Steel > High Strength Low Alloy Steel > Docol 420LA High Strength Low Alloy Steel (HSLA)

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.

Phone ：+8615275133550

WhatsApp ：+8615275133550

Email ：panjin4@sdpjsteel.com

Product Parameters

Product Display

Product Application

Packaging And Transportation

Factory Display

FAQ

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 Grade	Standard	Plating	Test Direction	Yield Strength Rp0.2 (MPa)	Tensile Strength Rm (MPa)	Extension Rate A80( min%)	Minimum Bend Inner Diameter for 90 ° Bend
Docol CR420LA	VDA239- 100:2016	GI, GA*, ZA	L	420-520	480-600	17	1.0xt
Docol HR420LA	VDA239- 100:2016	UC, Cam tho	L	420-520	480-600	18	UC 0.5xt bottleGI 1.0xt

Chemical Composition

Steel Grade	Plating	C (max %)	Si (max %)	Mn(max %)	P (max %)	S(max %)	Al( min%)	Ti(max%)	Nb(max %)	Cu(max %)
Docol CR420LA	GI,GA,ZA	0.12	0.50	1.65	0.30	0.025	0.015	0.015	0.10	0.20
Docol HR420LA	UC	0.12	0.50	1.60	0.30	0.025	0.015	0.015	0.09	0.20
Docol HR420LA	GI	0.12	0.50	1.60	0.30	0.025	0.015	0.015	0.10	0.20

Plating

Plating Type	Plating Grade	Standard	Single-sided coating quality, single-point test (g/m2)	Single side thickness, for reference only(μm)
GI	40/40	VDA239-100	40-60	5.6-8.5
GI	50/50	VDA239-100	50-70	7.0-9.9
GI	60/60	VDA239-100	60-90	8.5-12.7
GI	70/70	VDA239-100	70-100	9.9-14.1
GI	85/85	VDA239-100	85-115	12.0-16.2
GI	115/115	VDA239-100	115-155	16.2-21.8
GA	40/40	VDA239-100	40-60	5.6-8.5
GA	50/50	VDA239-100	50-80	7.0-11.3
ZA	95	As required		7-
ZA	130	As required		10-

Product Display

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.

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Product Application

Galvanized steel is widely used in fields such as construction, automotive manufacturing, household appliances, and agricultural equipment due to its excellent corrosion resistance and durability. Whether it's roofs, wall panels, ventilation ducts, or outdoor structural components, galvanized steel can provide long-term protection and resist the erosion of harsh environments.

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Packaging And Transportation

Packaging and Transportation

Our galvanized steel products are packaged with moisture-proof and scratch resistant materials to ensure no damage during transportation. Each roll or board is fastened with steel straps and covered with waterproof film, suitable for long-distance sea transportation and storage.

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Factory Display

Our production line adopts advanced continuous hot-dip galvanizing technology and is equipped with an automated control system to ensure that each batch of products meets international standards. The factory has a comprehensive quality inspection process, from raw materials to finished products, with layers of checks to provide customers with high-quality galvanized steel products.

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FAQ

Are You Manufacture or Trade Company?

A: We are the professional manufacturer of steel products located in China. Welcome to contact us and visit our factory before you place orders.

Q: How do you guarantee the quality?

A: We can send free samples to you, we can accept third-party testing.
We also have test certificate, every batch goods will be testing before shipment, and the testing report will delivery to you with your goods.

Q: Can I get free samples?

A: Of course you can. We can produce according to your samples or technical drawings. Contact us by whatsapp or email to get free samples and you will get the sample after 3-7 working days.