Spring Steel

Spring steel refers to the special alloy steel used in the manufacture of various springs and other elastic components. According to performance requirements and use conditions, it can be divided into ordinary alloy spring steel and special alloy spring steel. Spring steel has excellent comprehensive properties. Spring steel has excellent metallurgical quality (high purity and uniformity), good surface quality (strict control of surface defects and decarburization ), precise shape and size. Spring steel possess attributes of high Elasticity Limit, high Fatigue Limit, least permanent distortion, impact-resistance,…etc, it is an important material for producing spring. By adding alloy elements Si., Mn., Cr. and Mo.,…etc, above qualities can be acquired.

Product Applications

Automobile, mechanical devices, cylinder safety valve, clockwork, clutch spring, screw spring, spray nuzzle spring, adjustment spring, leaf-spring, torsion spring rod, piano wire and the mechanism.

SUP10(DIN 51CrV4)

Applied to producing various spring and mechanical parts, va

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SUP10(DIN 51CrV4)

Applied to producing various spring and mechanical parts, valve spring of the combustion, spray nuzzle spring, safety spring of boiler, damping spring for cars,…etc.

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6150

6150 is a high-class spring that possesses good mechanical a

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6150

6150 is a high-class spring that possesses good mechanical and crafting performances. By adding V. to improve the strength and toughness under its high hardenability. Fatigue strength and yield ratio of 6150 are high while weldability appears to be low. Commonly used to produce valve spring, piston spring, safety valve spring,…etc.

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彈簧製品

All kinds of springs used as mechanical part.

Steel data

Standard Code Spec No. Material No. Mark
CNS 2905 SUP9
JIS G4801 SUP9
GB 1222 60CrMnMoA
CNS 2905 SUP10
JIS G4801 SUP10
AISI 6135
AISI 6140
AISI 6150
DIN 17222 1.8159 50CrV4
CNS 2905 SUP11A
JIS G4801 SUP11A
GB 1222 60CrMnBA
CNS 2905 SUP12
JIS G4801 SUP12
AISI 9254
DIN 60SiCrV
(C)% (Si)% (Mn)% (P)% (S)% (Ni)% (Cr)% (Co)% (V)% (B)% (Se)% (Be)% Yield strength(Mpa) Tensile strength(Mpa) Elongation(%) Hardness(HB) Heat treatment
0.52~0.6 0.15~0.35 0.65~0.95 ≦ 0.035 ≦ 0.035 0.65~0.95 ≧ 1,080 ≧ 1,230 ≦ 9 363~420 淬火,回火
0.52~0.6 0.15~0.35 0.65~0.95 ≦ 0.035 ≦ 0.035 0.65~0.95 ≦ 0.3 ≧ 1,080 ≧ 1,230 ≦ 9 363~420 淬火,回火
0.56~0.64 0.17~0.37 0.7~1 ≦ 0.03 ≦ 0.03 ≦ 0.35 0.7~1 ≧ 1,080 ≧ 1,225 ≦ 9 ≦ 321 淬火,回火
0.47~0.55 0.15~0.35 0.65~0.95 ≦ 0.035 ≦ 0.035 0.7~1 ≦ 0.15 0.15~0.25 ≧ 1,080 ≧ 1,230 ≦ 10 363~429 淬火,回火
0.47~0.55 0.15~0.35 0.65~0.95 ≦ 0.035 ≦ 0.035 0.7~1 ≦ 0.15 0.15~0.25 ≧ 1,080 ≧ 1,230 ≦ 10 363~429 淬火,回火
0.3~0.4 0.15~0.3 0.6~0.9 ≦ 0.04 ≦ 0.05 0.8~1.1 ≧ 0.15
0.35~0.45 0.15~0.3 0.6~0.9 ≦ 0.04 ≦ 0.05 0.8~1.1 ≧ 0.15
0.48~0.53 0.15~0.35 0.7~0.9 ≦ 0.03 ≦ 0.04 0.8~1.1 ≧ 0.15
0.47~0.55 0.15~0.4 0.7~1.1 ≦ 0.035 ≦ 0.035 0.9~1.2 0.1~0.2 0.1~0.25 ≧ 1,180 1,370~1,670 ≦ 6 ≦ 248 淬火,回火
0.56~0.64 0.15~0.35 0.7~1 ≦ 0.035 ≦ 0.035 0.7~1 ≧ 1,080 ≧ 1,230 ≧ 10 363~429 淬火,回火
0.56~0.64 0.15~0.35 0.7~1 ≦ 0.035 ≦ 0.035 0.7~1 ≧ 0.001 ≧ 0.001 ≧ 0.001 ≧ 1,080 ≧ 1,230 ≧ 10 363~429 淬火,回火
0.56~0.64 0.17~0.37 0.7~1 ≦ 0.035 ≦ 0.035 ≦ 0.35 0.7~1 0.004~0.005 ≧ 1,080 ≧ 1,225 ≧ 9 ≦ 321 淬火,回火
0.51~0.59 1.2~1.6 0.6~0.9 ≦ 0.035 ≦ 0.035 0.6~0.9 ≧ 1,080 ≧ 1,230 ≧ 9 363~429 淬火,回火
0.51~0.59 1.2~1.6 0.6~0.9 ≦ 0.035 ≦ 0.035 0.6~0.9 ≧ 1,080 ≧ 1,230 ≧ 9 363~429 淬火,回火
0.51~0.59 1.2~1.6 0.6~0.8 ≦ 0.035 ≦ 0.04 0.6~0.8
0.58~0.62 1.45~1.6 0.45~0.6 ≦ 0.02 ≦ 0.01 0.5~0.6 0.16~0.18