E Steel is the supplier Malaysia of Spring Steel SUP9 , we export to Singapore , Brunei , Indonesia.
JIS SUP9 Steel Rod is a high quality Cold work Spring Steel, It belong to the high quality high carbon alloy Spring Steel. Oil Quenched & Tempered Hardness is 28-34 HRc. SUP9 steel Annealing delivery hardenss less than 250HB.
Chemical Composition of SUP9
C(£¥)
0.52-0.60
Si(£¥)
0.15-0.35
Mn(£¥)
0.65-0.95
P(£¥)
≤0.030
S(£¥)
≤0.035
Cr(£¥)
0.65-0.95
SUP9 Alloy Spring Steel Equivalent to
USA
Germany
China
Japan
France
England
Italy
Poland
ISO
Austria
Sweden
Spain
–
DIN,WNr
GB
JIS
AFNOR
BS
UNI
PN
ISO
ONORM
SS
UNE
5155 / G51550
55Cr3 / 1.7176
55CrMnA
SUP9
55C3
≈527A60
55Cr3
Heat treatment Related for 1.7176 Spring Steel
Annealing of SUP9 Spring Steel Slowly heated to 740-770 ¡æ and allow enough times, let the steel to be thoroughly heated, Then cool slowly in the furnace. The SUP9 tool steel will get MAX 250 HB (Brinell hardness).
Hardening of SUP9 Spring Steel SUP9 steels should be heated uniformly to 830-860°C (1526-1580°F) until completely heated through. About 30 min per 25 mm of ruling section is to be provided and then the steels should be immediately quenched in oil.
Tempering of SUP9 Spring Steel Tempering of SUP9 steels is performed at 460-510°C, Soak well at the selected temperature and soak for at least one hour per 25mm of total thickness.
Mechanical Properties of SUP9 Spring Steel
The mechanical properties of SUP9 Spring Steels are outlined in the following table.
Tensile strength
Conditions to yield strength
Elongation
Reduction of area
Hardness (Hot Rolled)
Hardness (Cold Drawn)
σb (MPa)£º≥1225(125)
σ0.2 (MPa)£º≥1080(110)
δ5 (%)£º≥9
ψ (%)£º≥20
≤321HB;
Applications of SUP9
SUP9 steels, Highlight the advantage is good hardenability, another hot working performance, comprehensive mechanical properties, Decarburization resistance is also good big cross section of various important spring, such as automobile, locomotive, large plate spring, spring, etc. SUP9 Spring main used for heavy vehicles, tractors, industrial production load, stress and the diameter of the larger plate spring and helical spring
Send your message to E STEEL SDN. BHD.
Main Office
E STEEL SDN. BHD. (891338-A)
3, Lorong Sungai Puloh 7/KU6, Kawasan Perindustrian Sungai Puloh, 42100 Klang, Selangor, Malaysia.