GB/T 699 45 Steel — Specifications & Listings

GB/T 699

45 steel is a widely used medium carbon steel with balanced strength, toughness, and machinability. It can be induction hardened or quenched and tempered for enhanced surface properties.

Category: Carbon Steel

Grade Details

Grade	GB/T 699 45
Standard	GB/T 699
Description	45 steel is a widely used medium carbon steel with balanced strength, toughness, and machinability. It can be induction hardened or quenched and tempered for enhanced surface properties.
Applications	Used for shafts, gears, bolts, connecting rods, axles, and hydraulic components.

Chemical Composition (%)

C	Si	Mn	P	S
0.42-0.50	0.17-0.37	0.50-0.80	0.035 max	0.035 max

Mechanical Properties

tensile_strength	600-800 MPa
yield_strength	355-540 MPa
elongation	12-18%
hardness	180-240 HB

Active GB/T 699 45 Listings on M-EX

No active GB/T 699 45 listings at this time.