Advantages of cold rolled steel coils.
Fast forming speed, high yield, no damage to the coating. Can be
made into a variety of cross-sectional forms to meet the needs of
the conditions of use; cold rolling can make the steel produce a
large plastic deformation, thereby increasing the yield point of
steel.
Carbon steel is characterized by wear resistance, corrosion
resistance, high strength, high hardness.Carbon steel is a carbon
and iron alloy with a carbon content of up to 2.1 percent.An
increase in carbon content increases the strength and hardness of
steel, but decreases its toughness.Carbon steels have good hardness
and strength and are much cheaper than other steels.
1. Advantages:
| 1. Reasonable price with excellent quality |
| 2. Abundant stock and prompt delivery |
| 3. Rich supply and export experience, sincere service |
2. Material:
A36, A53, ASTM A106, JIS S400, Q235B, Q235C, Q235D, Q345E, Q345,
Q390B, Q390C, Q390D, Q390E, Q420, Q420B, Q420C, Q420D, Q420E, Q460,
Q460D, Q500C, Q500D, Q550C, Q550D, Q550E, Q620C, Q620D, Q620E,
Q690A, Q690B, Q690C, Q690D, Q690E, Q690D, Q690C, Q890C, Q890D,
16Mo3, 16MnL, 16MnR , 16Mng, 16MnDR
3. Chemical Composition:
| Grade | Rank | Chemical Composition( %) |
| C | Mn | Si | S | P |
| 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 |
4. Standard:
| Standard | Grade | General Size | Delivery Condition |
| ASTM A36 | A36/A36-B | 5-20 * 2300-2500 * C | Boron added or Black Condition |
| ASTM A283 | A283-B/A283C | 5-20 * 2300-2500 * C | Boron added or Black Condition |
| ASTM A572 | A572Gr50-B/A572Gr42-B | 5-20 * 2300-2500 * C | Boron added or Black Condition |
| ASTM A515 | A515Gr70 | 5-20 * 2300-2500 * C | Boron added or Black Condition |
| ASTM A516 | A516Gr70 | 5-20 * 2300-2500 * C | Boron added or Black Condition |
| JIS G 3101 | SS400-B | 5-20 * 2300-2500 * C | Boron added or Black Condition |
| JIS G3136 | SN400B | 5-20 * 2300-2500 * C | Boron added or Black Condition |
| EN10025-2:2004 | S235JR-S355K2+N | 5-20 * 2300-2500 * C | Boron added or Black Condition |
| EN10025-5:2004 | S355J2W/S355K2W | 5-20 * 2300-2500 * C | Boron added or Black Condition |
5. Packing:
Standard stainless steel shipping packaging or as customer
required.
