GB/T11251 1345 Alloy Structural Steel Coil DescriptionGB/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 wel
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Carbon Steel Coil
GB/T11251 1345 Alloy Structural Steel Coil
- Date.October 31, 2024
- Category.Carbon Steel Coil
- Keyword.Big fire special steel, high strength steel plate, steel industry supply and demand, steel suppliers
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 - - -
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