Name: Docol 420LA High Strength Low Alloy Steel (HSLA)
SKU: 0

Shandong Tsingtuo Steel Co., Ltd.

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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 Details

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-

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Q1: What is the minimum order quantity (MOQ)? Do you support sample ordering?

A: We provide flexible procurement solutions:
Regular orders: MOQ 5 tons (special materials such as high-strength alloy steel MOQ 3 tons)
Sample ordering: Free samples of ≤1 meter (limited to 2 materials), support freight to be paid;
Zero-cut service: Inventory spot supports retail cutting by meter/kilogram to meet R&D and testing needs.

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Q2: What are the payment methods? What currencies are accepted for settlement?

A: We provide diversified financial solutions:
Standard payment: T/T (30% prepayment), LC
Cross-border settlement: Accept USD, EUR, CNH, and the exchange rate is locked according to the Bank of China's daily exchange rate

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Q3: How to deal with damage to goods during transportation? Is it insured?

A: We implement full-process risk protection:
Purchase "Ping An Cargo Transportation Insurance" by default, with the insured amount covering 110% of the value of the goods
Take an unboxing video within 48 hours after arrival and apply for quick claims
Provide "hosted warehousing" service, and waive 30-day storage fees for delayed delivery

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Q4: Can long-term cooperation get better prices?

A: We have launched a "ladder rebate plan":
Annual purchase amount reaches 300 tons: rebate 2% + free warehousing for 1 month;
Reach 1,000 tons: rebate 5% + exclusive steel mill direct sales price (8-12% lower than the market price);
Support price hedging: Signing an annual framework agreement can lock the floating range

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Q5: How long is the delivery cycle?

A: Conventional products: shipped within 7 days
Customized products: 15-30 days
Express service: Paying 10% of the fee can shorten the time by 1/3

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Q6: How to ensure quality? Is a test report provided?

A: According to customer requirements, each batch of goods can be accompanied by SGS/BV stamped reports. Support factory inspection

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