SK5
spring steel
Standard Compare
| JUTHA WAN | JIS | AISI/SAE | DIN |
|---|---|---|---|
| SK5 | SK85 (SK5) | 1085 (SK5) | - |
Chemical Compounds (%)
C
0.80 - 0.90
Si
0.10 - 0.35
Mn
0.50 Max
P
0.030 Max
S
0.030 Max
Properties and Application
- High-Carbon Content Alloy Steel
- Easily Hardened
- High Abrasion Resistant
- High Strength
- High Yield Strength
Distribution Formats
• Surface Appearance (Unpolished Black, Unpolished Blue, Unpolished Straw)
• Unpolished Semi Bright
• Polished Bright
• Polished Blue
Hardening
• Hardness at 810C – 830C
• span lang=”en”>After hardened to hardness 50 – 64 HRC
Edge Finish (Sort of Edge Finish)
• Round edges
• Deburred edges
• Slit edges
• Square edges
Flatness Tolerance
• The flatness tolerance of a cut sheared from a strip depend on size of thickness and width
Applications
• Automobile (Clutch parts)
• Blades & saws
• Power springs
• Other pressed parts
Standard Compare
| Shape | Specifications |
|---|---|
Flat Bar 
|
flat-shaped steel bar with thickness starting from 0.15 – 3.20 mm. (Thickness 0.15 – 3.20 mm.) / Width starting at 50 – 400 mm. (Width 50 – 400 mm.) *Tolerance based on the thickness and width of the plate |