GB/T11251 1345 Alloy Structural Steel Plate
Classification :
PRODUCT DETAILS
GB/T 11251 alloy structural steel plate has high strength and wear resistance, high hardenability, moderate cold deformation plasticity, good cutting performance and good welding performance. During heat treatment, the toughness of steel decreases less. GB/T 11251 alloy steel can still maintain high toughness under water cooling conditions, but has the tendency of overheating sensitivity, white point sensitivity and temper brittleness. They are mostly used after quenching and tempering, and can also be used under positive inflammation or hot rolling conditions. Typical applications include valve bodies, pumps and fittings, wheels, bolts, studs, gears, high loads on internal combustion engines. Drive shafts on steel balls, rollers and bushings for electric locomotives, machine tools, tractors, steel rolling equipment, boring machines, railway vehicles and mining machinery, etc..
| Product Name | Carbon Steel Sheet/Plate |
| Thickness | 0.1mm-400mm |
| Width | 12.7mm-3050mm |
| Length | 5800,6000 or customized |
| Surface | Black skin, Pickling, Oiling,galvanized,tinning,etc |
| Material | S235JR,S275JR,S355JR,A36,SS400,Q235,Q355,ST37, ST52,SPCC,SPHC,SPHT,DC01,DC03,etc |
| Standard | GB,GOST,ASTM,AISI,JIS,BS,DIN,EN |
| Technology | Hot rolling, Cold rolling, Pickling,galvanized,tinning |
Chemical Composition
|
Brand |
C |
Si |
Mn |
B |
|
45Mn2 |
0.42-0.49 |
0.17-0.37 |
1.40-1.80 |
- |
|
27SiMn |
0.24-0.32 |
1.10-1.40 |
1.10-1.40 |
- |
|
40B |
0.37-0.44 |
0.17-0.37 |
0.60-0.90 |
0.0005-0.0035 |
|
45B |
0.42-0.49 |
0.17-0.37 |
0.60-0.90 |
0.0005-0.0035 |
|
50B |
0.47-0.55 |
0.17-0.37 |
0.60-0.90 |
0.0005-0.0035 |
Mechanical Properties
|
Brand |
Yield Strength MPa min. |
Elongationmin. % |
|
45Mn2 |
600 |
13 |
|
27SiMn |
550 |
18 |
|
40B |
500 |
20 |
|
45B |
550 |
18 |
|
50B |
550 |
16 |
Scope of Application
GB/T 11251 alloy steel plates are widely used in various applications in bearings/gears of rotating machinery. Typical applications such as valve bodies, pumps and fittings, wheels, bolts, studs, gears, high loads of internal combustion engines. Electric locomotives, machine tools, tractors, steel rolling equipment, boring machines, railway vehicles and mining machinery drive shafts on steel balls, rollers and bushings, etc.
Equivalent Material
|
China |
United States |
Germany |
Japan |
France |
|
45Mn2 |
1345 |
46Mn7 |
SMn3 |
45M5 |
|
27SiMn |
- |
27MnSi5 |
- |
|
|
40B |
14B35 |
35B2 |
- |
- |
|
45B |
50B46H |
45B2 |
- |
- |
|
50B |
14B50 |
- |
- |
- |
Warehouse storage
Wugang Steel (Qingdao) Co., Ltd. is located in Qingdao, China. It is a large enterprise specializing in the production and sales of steel products. The company produces and sells carbon steel plates/coils/tubes/rods, stainless steel plates/coils/tubes/rods, galvanized sheets/coils/tubes, color-coated coils, corrugated boards, rebar, wire rods and various types of materials. The company stocks The quantity is sufficient and the varieties and specifications are complete.

Packing and delivery
We are the first-level agent for Chinese state-owned enterprises Shanghai Baosteel and Taigang Iron and Steel Group. Our products can meet every unique requirement of our customers. We provide customized services. We can support customers with quality inspections if needed. We can provide competitive prices, good quality control, purchasing suggestions. Welcome to inquire and order!

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5 : Trial order can be done in one week.
6 : Samples can be provided as your requirements
FAQ
Q2:Does the product have quality inspection before loading?
A:Of course, all our products have undergone strict quality inspection before packing.
Q3:Can you provide the samples free?
Q4:What about product prices information?
A:Prices various according to periodic price changes of raw materials.
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