Customization: | Available |
---|---|
Type: | Round |
Standard: | AISI, ASTM, DIN, JIS, GB, BS |
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Steel susceptible to the parts averagely exposed on loadings and more resistant to abrasion. For the parts such as: axles, crankshafts, spindles, discs, pump rotors, etc.
After soft annealing, steel becomes machinable; if normalised and soft annealed, steel becomes adjusted for the mechanical cutting.
After soft annealing, steel becomes machinable; if normalised and soft annealed, steel becomes adjusted for the mechanical cutting.
C | Mn | Si | P | S | Cr | Ni | Mo | V | W | Ti | Cu | Inne |
---|---|---|---|---|---|---|---|---|---|---|---|---|
0,42 - 0,50 | 0,50 - 0,80 | Max 0,40 | Max 0,045 | Max 0,045 | Max 0,40 | Max 0,40 | Max 0,10 | - | - | - | - | Cr+Mo+Ni max 0,63 |
Effect of the cross-section on mechanical properties | |||
If heat treated | |||
Diameter d, mm
Thickess of the flat bar t, mm |
≤ 16
≤ 8 |
16-40
8-20 |
40-100
20-60 |
Ultimate tensile strength Rm, MPa | 700-850 | 650-800 | 630-780 |
Yield stress Re (Rp0.2), MPa | ≥ 490 | ≥ 430 | ≥ 370 |
Elongation, A, % | ≥ 14 | ≥ 16 | ≥ 17 |
Reduction of area, Z, % | ≥ 35 | ≥ 40 | ≥ 45 |
If normalised | |||
Diameter, d, mm
Thickness of the flat bar t, mm |
≤ 16
≤ 16 |
16-100
16-100 |
100-250
100-250 |
Ultimate tensile strength Rm, MPa | ≥ 620 | ≥ 580 | ≥ 560 |
Yield stress Re (Rp0.2), MPa | ≥ 340 | ≥ 305 | ≥ 275 |
Elongation, A, % | ≥ 14 | ≥ 16 | ≥ 16 |
Technological treatment processes | Possible application | Temperature, °C | ||
Hot forming | Forging | + | (1100 - 850) | |
Rolling | + | (1100 - 850) | ||
Treatment | Heat treatment | Quenching | + | 820-860/w,o |
Tempering | + | 550 - 660 | ||
Precipitation strengthening | Supersaturation | - | - | |
Ageing | - | - | ||
Annealing | Normalising | + | 840 - 900 | |
Soft annealing | + | (650 - 700) | ||
Thermochemical treatment | Carburising | - | - | |
Other | - | - |
ISO | European Union | Russia | |||
~C45 | ISO 683-1 1987 | C45 | EN 10083-2 1996 | ~ 45 | GOST 1050 1988 |
US | Japan | China | |||
~ M 1044 | ASTM A 29-93 | ~S 45 C | JIS G 4051 1979 | ~ 45 | GB 699-88 |