45Cr Structural Steel

45CR SPECIAL ALLOY

CHEMICAL COMPOSITION%OF THE LADLE ANALYSIS OF GRADE45CR

C(％)	Si(％)	Mn(％)	Cr(％)
0.42-0.49	0.17-0.37	0.50-0.80	0.80-1.10

45Cr

MECHANICAL PROPERTIES OF GRADE45CR

Proof strength Rp0.2(MPa)	Tensile strength Rm(MPa)	Impact energy KV(J)	Elongation at fracture A(%)	Reduction in cross section on fracture Z(%)	As-Heat-Treated Condition	Brinell hardness(HBW)
251(≥)	263(≥)	42	34	41	Solution and Aging,Annealing,Ausaging,Q+T,etc	441

PHYSICAL PROPERTIES OF GRADE 45CR

Property	Density kg/dm3	Temperature T °C/F	Specific heat J/kgK	Thermal conductivity W/mK	Electric resistance µΩ·cm	Modulus of elasticity kN/mm2	Expansion rate
534(≥)	448(≥)	23	42	14	Solution and Aging,Annealing,Ausaging,Q+T,etc	441
Temp. °C/°F	Creep strain limit (10000h) (Rp1,0)N/mm2	Creep rupture strength (10000h) (Rp1,0)N/mm2
372	339	928

45CR RANGE OF PRODUCTS

Product type	Products	Dimension	Processes	Deliver Status
Plates/Sheets	Plates/Sheets	0.08-200mm(T)*W*L	Forging,hot rolling and cold rolling	Annealed,Solution and Aging,Q+T,ACID-WASHED,Shot Blasting
Steel Bar	Round Bar,Flat Bar,Square Bar	Φ8-1200mm*L	Forging,hot rolling and cold rolling,Cast	Black,Rough Turning,Shot Blasting,
Coil/Strip	Steel Coil/Steel Strip	0.03-16.0x1200mm	Cold-Rolled&Hot-Rolled	Annealed,Solution and Aging,Q+T,ACID-WASHED,Shot Blasting
Pipes/Tubes	Seamless Pipes/Tubes,Welded Pipes/Tubes	OD:6-219mm x WT:0.5-20.0mm	Hot extrusion,Cold Drawn,Welded	Annealed,Solution and Aging,Q+T,ACID-WASHED

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