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GB/T711 45# carbon structural steel
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GB/T711 45# carbon structural steel

GB/T711 45# steel is a high-quality carbon structural steel. It is equivalent to Japanese standard S45C, American standard: 1045, German standard C45. It is characterized by higher strength and resistance to deformation. It is widely used in mechanical manufacturing. This steel has good mechanical properties and is relatively cheap.

chemical composition


C

Si

Mn

P

S

Cr

Ni

Cu

min.

0.42-0.50

0.17-0.37

0.50-0.80

0.035

0.030

0.20

0.30

0.25

Mechanical properties


Grade

Tensile strength, MPa

Yield strength, MPa

Elongation, A%

45#

600 min.

355 min.

17 min.

45# steel is high-quality carbon structural steel. The hardness HRC is 48-55. 45# steel plates are widely used in aerospace, power, petrochemical, shipbuilding, machinery, electronics, environmental protection and other industries. Used to make small cross-section quenched and tempered parts with larger load and large normalized parts with less stress.

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