Carbon Steel Coil
Carbon Steel Coil
GB/T11251 1345 Alloy Structural Steel Coil
GB/T 11251 alloy steel is one of the common hot-rolled alloy structural steels. This steel coil is widely used in various applications in bearings/gears of rotating machinery.
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GB/T11251 1345 Alloy Structural Steel Coil Description
GB/T 11251 alloy steel is one of the common hot-rolled alloy structural steel coils. GB/T 11251 Hot-rolled coil has high strength and wear resistance, high hardenability, moderate cold deformation plasticity, good cutting performance and good welding performance. During the heat treatment, the toughness of the steel decreases less. GB/T 11251 alloy steel can still maintain high toughness under water cooling conditions, but it has a tendency of overheating sensitivity, white spot sensitivity and temper brittleness.
Product Parameters
Product Name GB/T11251 1345 Alloy Structural Steel Coil Production Process Hot Rolling, Cold Rolling Material Standards AISI, ASTM, ASME, DIN, BS, EN, ISO, JIS, GOST, SAE, etc. Width 45mm-2200mm Length Custom Size Thickness Hot Rolling: 2.75mm-100mm Delivery Conditions Rolling, Annealing, Quenching, Tempered or Standard Surface Process Ordinary, Wire Drawing, Laminated Film
Cold Rolling: 0.2mm-3mm
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 - - -
What is your working time?
In general, our online service time is Beijing time: 8:00-22:00, after 22:00, we will reply to your inquiry during the next working day.
How to pack the products?
The inner layer has a waterproof paper outer layer with iron packaging and is fixed with a fumigation wooden pallet. It can effectively protect products from corrosion during ocean transportation.
Can you send samples?
Of course, we can send samples to all parts of the world, our samples are free, but customers need to bear the courier costs.
What product information do I need to provide?
You need to provide the grade, width, thickness, coating and the number of tons you need to purchase.
What are the shipping ports?
Under normal circumstances, we ship from Shanghai, Tianjin, Qingdao, Ningbo ports, you can choose other ports according to your needs.
About product prices?
Prices vary from period to period due to cyclical changes in the price of raw materials.
What are the certifications for your products?
We have ISO 9001, SGS, EWC and other certifications.
How long does your delivery time take?
In general, our delivery time is within 30-45 days, and may be delayed if the demand is extremely large or special circumstances occur.
