Japan · JIS
F1-45
JIS B1054-1:2013 — JIS B1054-1
Chemical composition
| Element | min | max | Similar | Remarks |
|---|---|---|---|---|
| C | 0.12 | |||
| Cr | 15 | 18 | ||
| Mn | 1 | |||
| Nb+Ta | 1 | =＞10×%C | =＞10×%C | |
| Ni | 1 | |||
| P | 0.04 | |||
| S | 0.03 | |||
| Si | 1 | |||
| Ti | 0.8 | =＞5×%C | =＞5×%C |
Mechanical properties
| Heat treatment / condition | Yield strength | Tensile strength | Elongation | Reduction of area | Impact energy | Hardness |
|---|---|---|---|---|---|---|
| bolts, screws, bolts, , d <= 24.00 mm | ≥250 | ≥450 | HV 135–220 HBW；HB 128–209 HBW |