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Category | Type | Steel grade | Standard | Country |
---|---|---|---|---|
Grades | Special Alloy | H21 | ASTM | USA |
Chemical composition%of the ladle analysis of gradeH21
C(%) | Si(%) | Mn(%) | P(%) | S(%) | Cr(%) | V(%) | W(%) |
---|---|---|---|---|---|---|---|
0.26~0.36 | 0.15~0.50 | 0.15~0.40 | ≤0.030 | ≤0.030 | 3.00~3.75 | 0.30~0.60 | 8.50~10.0 |
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) |
---|---|---|---|---|---|---|
172(≥) | 738(≥) | 23 | 11 | 23 | Solution and Aging,Annealing,Ausaging,Q+T,etc | 124 |
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 |
---|---|---|---|---|---|---|---|
169(≥) | 388(≥) | 43 | 23 | 42 | Solution and Aging,Annealing,Ausaging,Q+T,etc | 142 | |
Temp. °C/°F | Creep strain limit (10000h) (Rp1,0)N/mm2 | Creep rupture strength (10000h) (Rp1,0)N/mm2 | |||||
276 | 581 | 238 |
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 |
Grade | Standard | Country | Application |
---|---|---|---|
GH2130 | ASTM | USA | Classification and designation for superalloys and high temperature intermetallic materials |
GH2132 | ASTM | USA | Classification and designation for superalloys and high temperature intermetallic materials |
GH2135 | ASTM | USA | Classification and designation for superalloys and high temperature intermetallic materials |
GH2136 | ASTM | USA | Classification and designation for superalloys and high temperature intermetallic materials |
03X21H21M4ΓБ | ASTM | USA | Russia GOCT standard stainless steel and heat resistant steel steel grade and chemical composition |
SUH21 | ASTM | USA | CNS standard heat resistant steel plate of the steel grade and chemical composition |
ISO H21 | ASTM | USA | Nickel and nickel alloy forgings |
H21 | ASTM | USA | Hot-Work Tool Steel |
H21 | ASTM | USA | Hot-Work Tool Steel |