Carbon steel is an alloy with carbon and iron, with carbon content up to 2.1% by weight. The increase in the carbon percentage will raise steel's hardness and strength, but it will be less ductile. Carbon steel has good properties in hardness and strength,and it is less expensive than other steels.
Carbon cold rolled steel coils and strips are produced with a highly adaptable manufacturing process, which are extensively used in automobile, washing machines, refrigerators, electrical appliances and steel office equipment. By varying the percentage in carbon steel, it is possible to produce steel with a variety of different qualities. In general, higher carbon content in steel makes steel harder, brittler and less ductile.
| Thickness | Yield Strength (Mpa) |
Tensile Strength (Mpa) |
Elongation (A50mm%) |
180 Degree Bending Test |
| >1.5-2.5 | ≤290 | ≥310 | ≥38 | D=0a |
| >2.5-3.0 | ≤290 | ≥300 | ≥38 | D=0a |
| >3.0-4.0 | ≤290 | ≥300 | ≥40 | D=1/2a |
| Grade | Rank | Chemical Composition( %) | ||||
| C | Mn | Si | S | P | ||
| Q195 | 0.06~0.12 | 0.25~0.50 | ≤0.3 | ≤0.05 | ≤0.045 | |
| Q215 | A | 0.09~0.15 | 0.25~0.55 | ≤0.3 | ≤0.05 | ≤0.045 |
| B | ≤0.045 | |||||
| Q235 | A | 0.14~0.22 | 0.30~0.65 | ≤0.3 | ≤0.05 | ≤0.045 |
| B | 0.12~0.20 | 0.30~0.70 | ≤0.045 | |||
| C | ≤0.18 | 0.35~0.80 | - | ≤0.04 | ≤0.04 | |
| D | ≤0.17 | ≤0.035 | ≤0.035 | |||
| Q255 | A | 0.18~0.28 | 0.40~0.70 | ≤0.3 | ≤0.05 | ≤0.045 |
| B | ≤0.045 | |||||
| Q275 | 0.28~0.38 | 0.50~0.80 | ≤0.35 | ≤0.05 | ≤0.045 | |
| Certificates | API5L ISO 9001:2008 TUV SGS BV, etc. | Product Name | Carbon Steel Coil |
| Edge | Mill Edge / Slit Edge | Material | Q235B,A36,Q195,SS400,st37-2,etc. |
| Grade | NM 400, NM 450, NM 500, NM 550, etc. | Standard | ASTM/EN/JIS/GB/etc. |
| Mill Test Certificate | Available | Thickness | 6-400mm or customized |
| Stock or not | Stock | Width | 800-330mm or customized(914mm, 1215mm,1250mm,1000mm the most common) |
| Packing | Standard Packaging | Surface | Black painting, Varnish painting, Anti-rust oil, Hot galvanized, Cold galvanized, 3PE |
| Payment terms | L/C T/T (30%DEPOSIT) | Coil Weight | 3-10 MT or customized |
| Application | Construction, Shipbuilding, Machinery manufacturing, Steel structure, etc. | Coil Inner size | 508mm/610mm or customized |
Standard Export Package, Ensure the High Quality Delivery.
| Packaging Details: | Standard seaworthy packing(plastic&wooden) or according to the customer's requests |
| Delivery Detail: | 3-10days, mainly decided by the quantity of the order |
| Port： | Tianjing/Shanghai |
| shipping | Sea ship by container |
Q1:Can I get samples before order ?
A:Yes, of course. Usually our samples are free,we can produce by your samples or technical drawings.
Q2:Can I go to your factory to visit?
A:Of course, we welcome customers from all over the world to visit our factory.
Q3:What product information do I need to provide?
A:You need to provide the grade, length, width, diameter, thickness, coating and the number of tons you need to purchase.
Q4: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 accept third party inspection.
Q5:How do we trust your company?
A:We specialise in steel business for years , headquarter locates in Jinan, Shandong province, you are welcome to investigate in any ways, by all means, we have CE and ISO certificate, quality can be guaranteed, the most important point is that we ship enough weight as per the order.
1.Send inquiry directly.
2.Send email.
3.Contacting via phone.
4.Contact sales staff.