Cold rolled coil refers to the steel strip which is rolled into a certain thickness directly by the roller at room temperature and rolled into the whole coil by the coiler. Compared with hot rolled coil, cold rolled coil surface bright, higher finish, but will produce more internal stress, after cold rolling often need annealing treatment.
Hot rolled steel coil is used as raw material, after acid pickling to remove the oxide scale, cold rolling, rolling into hard coil. The strength, hardness, toughness and plasticity index of rolled hard rolls are improved by cold work hardening caused by continuous cold deformation. , so the stamping performance will be poor, can only be used for simple deformation of parts. Hard rolled coils can be used as raw materials in hot-dip galvanizing plants because hot-dip galvanizing lines are equipped with deignition wires. The weight of rolled hard rolls is generally 20-40 tons. Hot rolled pickling rolls are continuously rolled at room temperature. The inner diameter is 610mm.
| 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 |
Our factory has multiple production lines, with a monthly output of several thousand tons. At the same time, cutting and cutting equipment can be cut flat.
Spot wholesale guarantee product quality intimate service
The company's technical force, the processing equipment of processing technology, diverse processing methods, can provide users with aluminum plate shear cleaning ruler processing, aluminum bands longitudinal partial processing, thickness in aluminum alloy Panel sawtage ruler processing, aluminum plate surface covering processing, etc., to meet the needs of users with small batches, multi -varieties, multi -specifications, and multi -purpose needs
Real materials and real materials are uniform performance stable performance.
Have a lot of stocks, product quality assurance.
Refinery for many years of industry experience is worthy of your trust
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.