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HMApplication:Carbide for cutting tools
CategoryTypeSteel gradeCountry
Grades Special Alloy HMSweden

Chemical composition%of the ladle analysis of gradeHM

Co(%)
7.5
Mechanical properties of gradeHM
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)
629(≥)896(≥)222441Solution and Aging,Annealing,Ausaging,Q+T,etc421
Physical properties of gradeHM
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
784(≥)791(≥)422142Solution 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
946632145
HMRange 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
A 213 N08925Sweden
Seamless Ferritic and Austenitic Alloy-Steel Boiler, Superheater, and Heat-Exchanger Tubes
A 240 N08925Sweden
Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and for General Applications
A 276 N08925Sweden
Stainless Steel Bars and Shapes
A 312 N08925Sweden
Seamless, Welded, and Heavily Cold Worked Austenitic Stainless Steel Pipes
A 479 N08925Sweden
Stainless Steel Bars and Shapes for Use in Boilers and Other Pressure Vessels
B 625 N08925Sweden
UNS N08925, UNS N08031, UNS N08932, UNS N08926, UNS N08354, and UNS R20033 Plate, Sheet, and Strip
B 649 N08925Sweden
Standard Specification for Ni-Fe-Cr-Mo-Cu-N Low-Carbon Alloys (UNS N08925, UNS N08031, UNS N08354, and UNS N08926), and Cr-Ni-Fe-N Low-Carbon Alloy (UNS R20033) Bar and Wire, and Ni-Cr-Fe-Mo-N Alloy (UNS N08936) Wire
B 673 N08925Sweden
Standard Specification for UNS N08925, UNS N08354, and UNS N08926 Welded Pipe
B 674 N08925Sweden
Standard Specification for UNS N08925, UNS N08354, and UNS N08926 Welded Tube
B 677 N08925Sweden
UNS N08925, UNS N08354, and UNS N08926 Seamless Pipe and Tube
N08925Sweden
Nickel Iron Chromium Molybdenum Copper Alloy
SB-625 N08925Sweden
UNS N08925, UNS N08031, UNS N08932, UNS N08926, UNS N08354, and UNS R20033 Plate, Sheet, and Strip
SB-649 N08925Sweden
Specification for Ni-Fe-Cr-Mo-Cu Low-Carbon Alloy (UNS N08904), Ni-Fe-Cr-Mo-Cu-N Low-Carbon Alloys (UNS N08925, UNS N08031, and UNS N08926), and Cr-Ni-Fe-N Low-Carbon Alloy (UNS R20033) Bar and Wire
SB-673 N08925Sweden
Specification for UNS N08904, UNS N08925 and N08926 Welded Pipe
SB-674 N08925Sweden
Specification for UNS N08904, UNS N08925 and UNS N08926 Welded Tube
SB-677 N08925Sweden
UNS N08925, UNS N08354, and UNS N08926 Seamless Pipe and Tube
20X12BHMΦSweden
Russia GOCT standard stainless steel and heat resistant steel steel grade and chemical composition
15X12BHMΦSweden
Russia GOCT standard stainless steel and heat resistant steel steel grade and chemical composition

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