6CrW2Si steel is a kind of steel grade formed by adding tungsten elements based on chromium silicon steel. It preserves the finer grains during quenching after tungsten is added. And it obtains higher toughness in the tempered state. 6CrW2Si steel has higher quenching hardness and certain high-temperature strength of 4CrW2Si steel and 5CrW2Si steel.
6CrW2Si Worldwide equivalents
country / region
China
EU
USA
Germany
France
England
Standard
GB
EN
–
DIN,WNr
AFNOR
BS
Grade
6CrW2Si
60WCrV8 (1.2550)
S1
60WCrV7
55WC20
BS1
country / region
Poland
Czechia
Austria
Russia
Inter
Italy
Standard
PN
CSN
ONORM
GOST
ISO
UNI
Grade
NZ3
19733
K455
5KHV2S
60WCrV8
55WCrV8KU
Chemical Composition
C(％)
Si(％)
Mn(％)
P(％)
S(％)
Cr(％)
Ni(％)
V(%)
W(%)
Cu(%)
0.55～0.65
0.50～0.80
≤0.40
≤0.030
≤0.030
1.00～1.30
≤0.20
≤0.20
2.20～2.70
≤0.30
6CrW2Si Mechanical Properties
Tensile strength
160～467
σb/MPa
Yield Strength
900
σ 0.2 ≥/MPa
Elongation
16
δ5≥(％)
HBS
507～422
–
HRC
30
–
6CrW2Si Physical Properties
Thermal expansion
56-76
e-6/K
Thermal conductivity
48-28
W/m.K
Specific heat
450-460
J/kg.K
Melting temperature
0238-3392
℃
Density
3545-8269
kg/m3
Resistivity
0.50-0.60
Ohm.mm2/m
Heat treatment
Quenching the sample 860 ~ 900 ℃. oil cooling.
Features
6CrW2Si steel has higher quenching hardness and high-temperature strength than 4CrW2Si steel and 5CrW2Si steel. It is usually used to manufacture tools that withstand impact loads and require high wear resistance.
Application
Used to make scissors and slicing punches.
Die, die, casting finishing tool, pneumatic chisel used for working under heavy load.
As a hot processing steel. It can produce screws and hot riveting punches.
High temperature die-cast light alloy head.
6CrW2Si 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
