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45CrApplication:China structural steel and alloy steel
CategoryTypeSteel gradeStandardCountry
Grades Special Alloy 45CrGBTChina

Chemical composition%of the ladle analysis of grade45Cr

C(%)Si(%)Mn(%)Cr(%)
0.42-0.490.17-0.370.50-0.800.80-1.10
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 ConditionBrinell hardness(HBW)
855(≥)675(≥)342334Solution and Aging,Annealing,Ausaging,Q+T,etc132
Physical properties of grade45Cr
PropertyDensity
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
413(≥)472(≥)113121Solution and Aging,Annealing,Ausaging,Q+T,etc412
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0)N/mm2
Creep rupture strength
(10000h)
(Rp1,0)N/mm2
524663346
45CrRange of products
Product typeProductsDimensionProcessesDeliver Status
Plates/SheetsPlates/Sheets0.08-200mm(T)*W*LForging,hot rolling and cold rollingAnnealed,Solution and Aging,Q+T,ACID-WASHED,Shot Blasting
Steel BarRound Bar,Flat Bar,Square BarΦ8-1200mm*LForging,hot rolling and cold rolling,CastBlack,Rough Turning,Shot Blasting,
Coil/StripSteel Coil/Steel Strip0.03-16.0x1200mmCold-Rolled&Hot-RolledAnnealed,Solution and Aging,Q+T,ACID-WASHED,Shot Blasting
Pipes/TubesSeamless Pipes/Tubes,Welded Pipes/TubesOD:6-219mm x WT:0.5-20.0mmHot extrusion,Cold Drawn,WeldedAnnealed,Solution and Aging,Q+T,ACID-WASHED
Cross Reference Table(Equivalent Grade)
GradeStandardCountryApplication
X45CrSi9-3GBTChina
Valve steels and alloys for internal combustion engines
1.4718GBTChina
Valve steels and alloys for internal combustion engines
X45Cr13GBTChina
Corrosion-resistant high-temperature steel
1.3541GBTChina
Corrosion-resistant high-temperature steel
X45CrSi9-3GBTChina
Heat-treatable steels, alloy steels and free-cutting steels -- Part 15: Valve steels for internal combustion engines
145Cr6GBTChina
Tools alloyed Cr steel
45CrMoV7GBTChina
Tool Steels; Technical Conditions of Delivery

Relevant products

45Cr Steel Stock

Steel gradeDimensionShapeUnitQuantityDelivery stateQuery
T45Cr5Si3 Round BarDia.40mmRound BarKgs500Hot-Rolled+Annealed+blackEnquiry

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