Active Member
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[China]
Address: RM 2902,29/F HO KING COMM CTR 2-16 FA YUEN ST MONGKOK KLN HONG KONG
Contact name:Amy
Velander Steel Co., Limited |
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Hot Rolled MS Mild Carbon Steel Coil Q235B Q345B For Building Decoration Construction
Deformation aging is more harmful to the ductility and toughness of low carbon steel than quenching aging, and there are obvious upper and lower yield points on the tensile curve of low carbon steel. From the appearance of the upper yield point to the end of yield extension, a surface corrugation band, called Luders zone, is formed on the surface of the sample due to uneven deformation. Many stamping parts are often scrapped as a result. There are two ways to prevent it. A high pre-deformation method, pre-deformation of steel placed for a period of time after stamping will also produce luders zone, so the pre-deformation of steel before stamping place time should not be too long. The other is to add aluminum or titanium to the steel to form a stable compound with nitrogen that prevents the formation of deformation aging caused by the Collarian gas mass.
Product Details
| Width | 600mm-3000mm or as required | Thickness | 0.1mm-300mm or as required |
| Technique | Hot/Cold Rolled | Standard | AISI, ASTM, DIN, JIS, GB, JIS, SUS, EN, Etc. |
| Surface treatment | Clean, blasting and painting according to customer requirement | Certificate | API,ISO,SGS,BV,CE etc |
| Package | Standard export seaworthy package,suit for all kinds of transport, or as required. | Trade term | Ex-Work,FOB,CNF,CFR,CIF,etc |
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.
| 1000-3000mm |
