Application:The steel plate has the comprehensive performance advantages of high strength, high toughness, good weldability, earthquake resistance, weather resistance, etc. It can be widely used in the construction of welded steel structures, such as railway bridges and highway bridges. 500MPa grade high performance bridge steel has been widely used in United States, European countries, Japan and other countries and regions. 1.Typical Grade, Specification and Execution Standard | Grade | Specification /mm | Delivery condition | Standard |
| Q460qD/E/F(including Z property) | (6~60)×(1600~4700)×L | TMCP
TMCP+T | GB/T 714
OR Technical agreement |
| Q500qD/E/F(including Z property) |
2.Chemical Composition (wt.%) | C | Si | Mn | P | S | Nb+V+T | Cr+Ni+Cu | Mo | Alt | CEV | Pcm |
| ≤0.11 | ≤0.55 | 1.00~1.70 | ≤0.015 | ≤0.005 | ≤0.18 | ≤1.10 | ≤0.25 | ≥0.020 | ≤0.45 | ≤0.22 |
Note:1. CEV(%)=C+Mn/6+(Cr+Mo+V)/5+(Cu+Ni)/15
2. Pcm(%)=C+Si/30+(Mn+Cu+Cr)/20+Mo/15+Ni/60+V/10+5B
3.Mechanical Property 3.1Mechanical properties comply with the requirement of GB/T 714 standard. | Grade | Tensile test(Transverse) | Impact test(Longitudinal) |
|
|
| ReL/MPa | Rm/MPa | A/% | Temperature/ºC | KV2/ J |
|
|
| Thickness/mm |
| ≤50 | >50~100 |
| Q460qD | ≥460 | ≥450 | ≥570 | ≥18 | -20 | ≥120 |
| Q460qE | -40 | ≥120 |
| Q460qF | -60 | ≥47 |
| Q500qD | ≥500 | ≥480 | ≥630 | ≥18 | -20 | ≥120 |
| Q500qE | -40 | ≥120 |
| Q500qF | -60 | ≥47 |
Special requirements shall be executed according to the technical agreement between two parties; when the yield point is not obvious, Rp0.2 can be used to replace the lower yield strength.
3.2Mechanical property of typical specification | Grade | Thickness/mm | Tensile test(Transverse) | Impact test(Longitudinal) (-40ºC)KV2 / J | Through-thickness
tension/% | Bending test D=3a,180° |
|
| ReL/MPa | Rm/MPa | A/% | Yield ratio |
| Q460qEZ35 | 16 | 513 | 635 | 20 | 0.81 | 214 231 263 | 64 68 72 | No crack |
| 30 | 509 | 624 | 21 | 0.81 | 202 255 223 | 68 71 66 | No crack |
| 60 | 489 | 599 | 23 | 0.82 | 214 235 256 | 73 75 79 | No crack |
| Q460qEZ35 | 16 | 531 | 668 | 21 | 0.79 | 285 231 286 | 62 62 64 | No crack |
| 32 | 539 | 664 | 20 | 0.81 | 302 305 250 | 75 74 75 | No crack |
| 50 | 527 | 651 | 21 | 0.81 | 312 300 309 | 60 77 75 | No crack |
| 60 | 539 | 662 | 25 | 0.81 | 234 222 249 | 80 77 79 | No crack |
FAQ Q: What kind of work does your company do?
A: Our company is a professional manufacturer. We mainly produces are steel plate and steel tube.
Q: How can you assure your quality?
A: 1.We can provide you certificate of quality accordingly.
2.We are willing to accept the third party inspection, such as SGS,BV,CE and so on.
Q: Can you accept customization?
A: Yes. If you have special requirements on products or packages, we can do customization for you.
Q: Can you accept trail orders?
A: Generally our MOQ is 1 ton. But if you want to place a trail order as the beginning of our cooperation, we can accept smaller quantity at first. Surely we will have further and longer partnership after the beginning.
Q: Can you provide samples for checking before order?
A: Free samples can be provided as you required. You need only to bear the freight cost. If you want to know more details,please contact our sales online.
Q:How long time is the shortest delivery?
A:For stock material,the delivery time is just 3-5 working days.
And for customized product,it will takes 25-35 working days based on different size and quantity.
Q:What's the terms of payment?
A:We can accept T/T,100% irrevocable LC at sight,Western Union,etc,
If our quality is unapproved,we need and will refund full payment to customers
Q.How can we get your price ?
A:We need below information to quote for you:
1. Product Name
2. Standard
3. Material Grade (Chemical Composition)
4. Dimension
5. Quantity
6. The Drawing for Special Parts 
