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
Chemical Composition
Plating
| 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 |
| 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 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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FAQ
Q: Are you a factory or a trading company? A：We are manufacturer and trader. You are welcome to visit our factory.
Q: Can you guarantee the quality of your products? A: We always insist on the best quality. We conduct 2 quality inspections one by one. Our mission: to be a world-class professional, reliable and excellent steel supplier.
Q: Do you provide samples? ls it free or 2 extra? A: Samples can be provided to customers for free, but the freight is borne by the customer. The sample freight will be returned to the customer after our cooperation.
Q: What’s your minimum order quantity? A: We welcome you to try the MOQ 25T, loaded into 1*20GP. Largequantity can reduce your cost.
