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C250Application:Australia Structural steel
CategoryTypeSteel gradeStandardCountry
Grades Special Alloy C250ASAustralia

Chemical composition%of the ladle analysis of gradeC250

C(％)Si(％)P(％)S(％)
0.250.40.040.04
C250
Mechanical properties of gradeC250
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)
577(≥)658(≥)141333Solution and Aging,Annealing,Ausaging,Q+T,etc121
Physical properties of gradeC250
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
817(≥)615(≥)334413Solution and Aging,Annealing,Ausaging,Q+T,etc324
Temp.
°C/°F		Creep strain limit
(10000h)
(Rp1,0)N/mm2		Creep rupture strength
(10000h)
(Rp1,0)N/mm2
157479414
C250Range 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
Maraging Steel 250 / C250ASAustralia
Structural and constructional steels
K92890ASAustralia
Structural and constructional steels
1.6359ASAustralia
Structural and constructional steels
C250, 250, UNS K92890, 1.6359, Alloy 250ASAustralia
C250 is used for missile and ejector systems, slat tracks and drive shafts.

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