Steel Standard | Steel Grade | Chemical Composition | ||||||||
---|---|---|---|---|---|---|---|---|---|---|
C≤ | Mn | Si≤ | P≤ | S≤ | V | Nb | Ti | Al≥ | ||
Q345 | A | 0.20 | 1.00~1.60 | 0.55 | 0.045 | 0.045 | 0.02~0.15 | 0.015~0.060 | 0.20 | - |
B | 0.20 | 1.00~1.60 | 0.55 | 0.040 | 0.040 | 0.02~0.15 | 0.015~0.060 | 0.20 | - | |
C | 0.20 | 1.00~1.60 | 0.55 | 0.035 | 0.035 | 0.02~0.15 | 0.015~0.060 | 0.20 | 0.015 | |
D | 0.20 | 1.00~1.60 | 0.55 | 0.030 | 0.030 | 0.02~0.15 | 0.015~0.060 | 0.20 | 0.015 | |
E | 0.20 | 1.00~1.60 | 0.55 | 0.025 | 0.025 | 0.02~0.15 | 0.015~0.060 | 0.20 | 0.015 |
Steel Grade | Tensile strength | Yield strength | Elongation afrer fracture |
---|---|---|---|
S355 | 450-630Mpa | ≥355MPa | 21-22% |
S500MC | 550-700Mpa | ≥500MPa | ≥12% |
Q345B | 490-675Mpa | ≥345Mpa | ≥21% |
Q235B | 375-500Mpa | ≥235Mpa | ≥26% |
Steel Grade | C | Si | Mn | P | S |
---|---|---|---|---|---|
S355 | ≤0.22 | ≤0.55 | ≤1.60 | ≤0.025 | ≤0.025 |
S500MC | ≤0.12 | ≤0.50 | ≤1.70 | ≤0.025 | ≤0.015 |
Q345B | ≤0.20 | ≤0.50 | ≤1.70 | ≤0.035 | ≤0.035 |
Q235B | ≤0.20 | ≤0.35 | ≤1.40 | ≤0.045 | ≤0.045 |
Steel for boiler and other pressure vessels | GB 713-2008 ASTM A537-08 JIS G3115 | Q245R (20g/20R); Q345R (16Mng/16MnR) Class 1/2/3 SPV235; SPV315; SPV355 |
---|---|---|
High strength low alloy structural steel | GB/T 1591-2008 EN 10028-3-2003 EN 10025-2004 ASTM A572-07 ASTM A588-05 | Q345 (A/B/C/D/E); Q390; Q420 P355N S420N Grade 50; Grade 60 Grade A; Grade B |
Q: Would you provide samples For free?
A: Yes. with on stock specification We provide samples For Free. Freight charge collect
Q: What information should i provide to source for the right products?
A: Material grade, width, thickness, coating and Purchase quantity, Expected lead time, etc
Q: What are the shipping ports?
A: Under normal circumstances, we ship from Shanghai, Tianjin, Qingdao, Ningbo ports, you
can choose other ports according to your needs.
Q: About product prices?
A: Prices vary from period to period due to cyclical changes in the price of raw materials.
Q: How long does your delivery time take?
A: In general, our delivery time is within 5-45 days, and may be delayed if the demand is extremely
large or special circumstances occur.
Q: Can I visit your location?
A: Of course, we welcome customers from all over the world to visit our factory. However, some
of the plants are not open to the public.
Q: Does the product have quality inspection before loading?
A: Of course, all our products are strictly tested for quality before packaging, and unqualified products will be destroyed. We provide All Original Mill test certificate and support third party inspection.
Q: How to pack the products?
A: The inner layer has a waterproof paper outer layer with iron packaging and is fixed with a fumigation
wooden pallet. It can effectively protect products from corrosion during ocean transportation.
Q: What is your working time?
A: In general, our online service time is Beijing time: 8:00-22:00, after 22:00,
we will reply to your inquiry during the next working day.