HSLA S420N S420NL Low Alloy High Strength Steel Plate
Products Description Here is detailed information about HSLA S420N and S420NL low - alloy high - strength steel plates: 1. Standard and Classification1 Standard : Both S420N and S420NL comply with the EN 10025 - 3 standard, which pertains to hot - rolled weldable fine - grain structural steels...
Description
Products Description
Here is detailed information about HSLA S420N and S420NL low - alloy high - strength steel plates:
1. Standard and Classification1
Standard: Both S420N and S420NL comply with the EN 10025 - 3 standard, which pertains to hot - rolled weldable fine - grain structural steels in the normalized or normalized - rolled state.
Classification: They belong to the category of low - alloy high - strength structural steels, designed for use in particularly loaded elements of welded structures.
2. Chemical Composition
The following are the maximum contents of main elements (in %):
| Element | S420N | S420NL |
|---|---|---|
| C | 0.20 | 0.20 |
| Si | 0.60 | 0.60 |
| Mn | 1.00 - 1.70 | 1.00 - 1.70 |
| P | 0.030 | 0.025 |
| S | 0.025 | 0.020 |
| N | 0.025 | 0.025 |
| Al (total) | 0.020 | 0.020 |
| Cu | 0.55 | 0.55 |
| Cr | 0.30 | 0.30 |
| Ni | 0.80 | 0.80 |
| Mo | 0.10 | 0.10 |
| Nb | 0.050 | 0.050 |
| V | 0.20 | 0.20 |
| Ti | 0.05 | 0.05 |
| Ceq (for thickness ≤ 63 mm) | 0.48 | 0.48 |
| Ceq (for thickness 63 - 80 mm) | 0.50 | 0.50 |
3. Mechanical Properties4
| Property | Details |
|---|---|
| Yield strength ReH (MPa) | For S420N and S420NL, the minimum yield strength varies with thickness. For example, for thickness up to 16 mm, it is 420 MPa; for 16 - 40 mm, it is 400 MPa; for 40 - 63 mm, it is 390 MPa; for 63 - 80 mm, it is 370 MPa; for 80 - 100 mm, it is 360 MPa; for 100 - 150 mm, it is 340 MPa; and for 150 - 200 mm, it is 330 MPa. |
| Tensile strength Rm (MPa) | For S420N and S420NL, when the thickness is up to 100 mm, it is 520 - 680 MPa; for 100 - 200 mm, it is 500 - 650 MPa. |
| Elongation A (%) | For S420N and S420NL, when the thickness is up to 16 mm, the minimum elongation is 19%; for 16 - 40 mm, it is 19%; for 40 - 63 mm, it is 19%; for 63 - 80 mm, it is 18%; and for 80 - 200 mm, it is 18%. |
| Impact energy | For S420NL, the impact energy at - 20°C is ≥ 27 J. The impact performance of S420N is tested at normal temperature, and its impact energy also meets relevant standards. |
Why Choose Us?
We take pride in our ability to provide custom solutions for our customers' unique needs.
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We offer a wide range of Cold-rolled Steel products to meet diverse customer needs.
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Our factory is committed to upholding the highest standards of safety and quality.
All staff of our company and all departments work together to combine business management, professional technology, quantitative statistical methods and ideological education.
Our Cold-rolled Steel products are known for their durability and reliability.
Relying on the superior conditions and strong advantages of mass production, we are able to meet the different needs of our customers.
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