| Type: | Steel Bar |
|---|---|
| Standard: | AISI, ASTM, DIN, JIS, GB, BS |
| Composition: | Carbon Steel |
| Technique: | Hot Rolled |
| Shape: | Bar |
| Surface Treatment: | Blace/Polishing/Oiling or Galvanizing/ etc |
| Samples: |
|---|
| Customization: |
|---|
Suppliers with verified business licenses
Audited Supplier 
Low alloy high strength steel is a kind of engineering structural steel developed by adding a small amount of Mn, Si, Nb, V, Ti, Al and other alloy elements on the basis of carbon structural steel. The so-called low alloy means that the total amount of alloy elements in steel does not exceed 3%. High strength is relative to carbon engineering structural steel. The development principle of low alloy high strength steel is to use as few alloying elements as possible to obtain as high comprehensive mechanical properties as possible, so as to meet the purpose of use and low cost. Low alloy high-strength steel can meet the requirements of large bearing capacity of various structures (such as large bridges, pressure vessels, ships, etc.) in engineering, and at the same time, it is required to reduce the dead weight of structures, improve reliability, and save materials and resources. This kind of steel is mainly used to manufacture various engineering structures with high strength requirements, such as bridges, ships, vehicles, high pressure vessels, oil and gas pipelines, large steel structures, etc. Because this kind of steel can obtain high strength without complex treatment process or even heat treatment, which greatly reduces the quality of engineering structures, it is used to replace general carbon structural steel.
| C | Si | Mn | P | S | Cr | Ni | Cu | ||
| Thickness or diameter (mm) | ≤ |
||||||||
| ≤40 | >40 | ||||||||
| Q355B | ≤0.24 | 0.55 | 1.60 | 0.035 | 0.035 | 0.30 | 0.30 | 0.40 | |
| 50S(345S) | ≤0.25 | 0.40 | 0.80-1.20 | 0.030 | 0.030 | - | - | 0.20 | |
| S355B | ≤0.24 | 0.55 | 1.60 | 0.035 | 0.035 | - | - | 0.55 | |
| S355JR/1.0045 | ≤0.24 | 0.55 | 1.60 | 0.035 | 0.035 | - | - | 0.55 | |
| Q355C | ≤0.22 | ≤0.22 | 0.55 | 1.60 | 0.030 | 0.030 | 0.30 | 0.30 | 0.40 |
| 50W (345W) | ≤0.25 | 0.40 | 0.80-1.20 | 0.030 | 0.030 | - | - | 0.20 | |
| S355C | ≤0.20 | ≤0.22 | 0.55 | 1.60 | 0.030 | 0.030 | - | 0.55 | |
| S355J0 1.0553 |
≤0.20 | ≤0.22 | 0.55 | 1.60 | 0.030 | 0.030 | - | - | 0.55 |
Production Range |
Outer Diameter:6-530mm (0.24 inch - 21.18 inch) |
| Wall Thickness:0.8-200mm (0.03 inch - 7.89 inch) | |
Material / Grade |
Carbon Steel: GB/T 3094: 10#, 20#, 35#, 45#, 55#, Q235B, Q235C, CF53, A105 ASTM A519: 1010, 1020, 1026, 1035, 1045, 1050 DIN17121/EN 10297-1, DIN1629/DIN2391/EN 10305-1: C10/CK10, C22/CK22, C35/CK35, C45/CK45, CF53 JIS3441/JIS3444/JIS3445: STKM11A, STKM12A/STKM12B/STKM12C, STKM13A/STKM13B/STKM13C JIS G4051: S10C, S20C, S25C, S35C, S45C, S55C |
| Alloy Steel: GB/T 3094: 16Mn(Q345B), 20Cr, 40Cr, 15CrMo, 20CrMo, 28CrMo, 30CrMo, 35CrMo, 42CrMo, 20CrMnTi, 40MnMoV, 20Mn2, ZF6, 16MnCr5, 20MnCr5, 38Mn2V, 09CrCuSb(ND) ASTM A519: 5120, 5140, 4130, 4135, 4140 DIN17121/EN 10297-1, DIN1629/DIN2391/EN 10305-1: ST52, EN10084-1998 20Cr4, 41Cr4, 15CrMo4, 25CrMo4, 35CrMo4, 42CrMo4, 16MnCr5 JIS3441/JIS3444/JIS3445: SCM432/SCRRM3, SCM4 JIS G4053: JIS SCr420, JIS SCr440, SCM415, SCM420 |
|
| Tolerance | Can be customized according to customer's requirements |
| Technique | Cold Drawn / Cold Rolled |
| Shape | Triangle, Hexagon, Square, Rectangle, Octagon, Lemon Pipe and Others can be customized |
| Further Processing for Steel Tubes | Cutting, Chamfer, Threading, Inner diameter or Outer Diameter Lathe, Surface Shot Blasting, Laser Marking |
| condition | tensile strength σ b Mpa | Yield point σ s Mpa | Elongation δ % | Impact absorbed energy KV2 J | Test temperature |
| Long and flat products; t≤16; portrait | 470~630 | ≥355 | ≥22 | ||
| Long and flat products; t≤16; transverse | 470~630 | ≥355 | ≥20 | ||
| Long and flat products; 16 <t≤40 portrait | 470~630 | ≥345 | ≥22 | ||
| Long and flat products; 16<t≤40 transverse | 470~630 | ≥345 | ≥20 | ||
| Long and flat products;40<t≤63 portrait | 470~630 | ≥335 | ≥21 | ||
| Long and flat products;40<t≤63 transverse | 470~630 | ≥335 | ≥19 | ||
| Long and flat products;63<t≤80 portrait | 470~630 | ≥325 | ≥20 | ||
| Long and flat products;63<t≤80 transverse | 470~630 | ≥325 | ≥18 | ||
| Long and flat products;80<t≤100 portrait | 470~630 | ≥315 | ≥20 | ||
| Long and flat products;80<t≤100 transverse | 470~630 | ≥315 | ≥18 | ||
| Long and flat products;100<t≤150 portrait | 450~600 | ≥295 | ≥18 | ||
| Long and flat products;100<t≤150 transverse | 450~600 | ≥295 | ≥18 | ||
| Long and flat products;150<t≤200 portrait | 450~600 | ≥285 | ≥17 | ||
| Long and flat products;150<t≤200 transverse | 450~600 | ≥285 | ≥17 | ||
| Long and flat products;200<t≤250 portrait | 450~600 | ≥275 | ≥17 | ||
| Long and flat products;200<t≤250 transverse | 450~600 | ≥275 | ≥17 | ||
| Long and flat products; portrait | ≥34 | 0ºC | |||
| Long and flat products; transverse | ≥27 | 0ºC |
Packaging |
1. by bundles, each bundle weight under 3 tons, for small outer diameter steel bars, each bundle with 4 - 8 steel strips. 2. after making by bundle, covered with Polyethylene waterproof cloth. 3. make black paints painting on each bar, then make bundles |
| 20 feet container contains dimension | Length under 6000mm |
| 40 feet container contains dimension | Length under 12000mm |
| By bulk vessel | Freight charge is low by bulk cargo, and large heavy sizes can not be loaded into containers can shipping by bulk cargo |
1. Who are we?
Our headquarter is located in Shandong, China. Since 2022, we have sold to North America (60.00%), Western Europe (14.00%) and South America (6.00%). There are about 11-50 people in our office.
2. How do we guarantee quality?
Always provide pre-production samples before mass production;
Always carry out final inspection before shipment;
3. What can you buy from us?
Copper, aluminum, die steel, titanium, customized machine parts
4. Why should you buy from us instead of other suppliers?
The company has 25 years of production experience. It has advanced precision production equipment, modern large warehouse, 200000 tons of inventory goods and a number of long-term stable cooperative customers.
5. What services can we provide?
Accepted delivery conditions: FOB, CFR, CIF, EXW
Accepted payment currency: US dollar, Euro, Japanese yen, Canadian dollar, Australian dollar, Hong Kong dollar, British pound, RMB, Swiss franc;
Accepted payment type: T/T, L/C, D/P D/A, PayPal;
Optional ports: Tianjin, Shanghai, Guangzhou;
Spoken: English, Chinese
6. How can we get your price?
A. We need the following information to quote for you:
1). Product Name
2). standard
3). Material grade (chemical composition)
4). dimension
5). amount
6). Special part drawin
Suppliers with verified business licenses
Audited Supplier 
){kind=link}
){kind=link}