Location » Home » Grades > Tool Steels & Die Steels > H21

SAE H21 Details

Hot-Work Tool Steel

SAE H21 Standard Download

Tags

H21 Application:Hot-Work Tool Steel
Category Type Grade Designations
Grades Tool Steels & Die Steels H21 USA - SAE ,
Chemical composition(mass fraction)(wt.%)
Elements Min.(≥) Max.(≤)
C 0.30 0.40
Si 0.15 0.30
Mn 0.20 0.40
Cr 3.00 3.75
Mo - -
V 0.30 0.50
W 8.75 10.00
Mechanical properties of grade H21
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)
141 (≥) 945 (≥) 14 23 31 Solution and Aging, Annealing, Ausaging, Q+T,etc 323
Physical properties of grade H21
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
424 (≥) 625 (≥) 14 33 31 Solution and Aging, Annealing, Ausaging, Q+T,etc 444
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
797 774 799
H21 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
Cross Reference Table(Equivalent Grade)
Grade Standard Country Application
GH2130 GB China
Classification and designation for superalloys and high temperature intermetallic materials
GH2132 GB China
Classification and designation for superalloys and high temperature intermetallic materials
GH2135 GB China
Classification and designation for superalloys and high temperature intermetallic materials
GH2136 GB China
Classification and designation for superalloys and high temperature intermetallic materials
03X21H21M4ΓБ GOST Russia
Russia GOCT standard stainless steel and heat resistant steel steel grade and chemical composition
SUH21 CNS China
CNS standard heat resistant steel plate of the steel grade and chemical composition
ISO H21 ISO International
Nickel and nickel alloy forgings
H21 ASTM USA
Hot-Work Tool Steel
H21 SAE USA
Hot-Work Tool Steel

Relevant products

Enquiry