Steel 60S2N2A
Description
Steel 60S2N2A
Steel 60S2N2A: a brand of steels and alloys. Below is a systematized information on the purpose, chemical composition, types of supplies, substitutes, temperature of critical points, physical, mechanical, technological and casting properties for the grade — Steel 60S2N2A.
General information of steel 60S2N2A
| Substitute brand |
| steel: 60S2A, 60S2XA. |
| Delivery type |
| Long products, including shaped: GOST 14959−79, GOST 2590−71, GOST 2591−71, GOST 2879−69, GOST 7419.0−78 — GOST 7419.8−78. Calibrated bar GOST 7417−75, GOST 8559−75, GOST 8560−78. Polished bar and silver bar GOST 14955−77, GOST 7419.0−78 — GOST 7419.8−78. Strip GOST 103−76, GOST 4405−75. Forgings and forged billets GOST 1133−71. |
| Application |
| responsible and heavily loaded springs and springs. |
Chemical composition of steel 60S2N2A
| Chemical element |
% |
| Silicon (Si) |
1.4−1.8 |
| Manganese (Mn) |
0.40−0.70 |
| Copper (Cu), no more |
0.30 |
| Nickel (Ni) |
1.4−1.7 |
| Sulfur (S), no more |
0.025 |
| Carbon (C) |
0.56−0.64 |
| Phosphorus (P), no more |
0.025 |
| Chromium (Cr), no more |
0.30 |
Mechanical properties of steel 60S2N2A
Mechanical properties
| Heat treatment, delivery condition |
σ 0.2, MPa |
σ B, MPa |
δ 5 ,% |
ψ,% |
HB |
| Steel categories: 3.3A, 3B, 3V, 3G, 4.4A, 4B. Hardening 870 ° С, oil, tempering 470 ° С. |
1325 |
1470 |
8 |
thirty |
|
| Annealing 720 ° C, oven. |
410 |
700 |
19 |
50 |
|
| Springs. Annealing or tempering before drawing 730 ° С, hot winding 850−900 ° С, quenching 850−870 ° С, oil. Vacation 380−420 ° С, air. |
|
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|
420−475 |
| Hardening 850 ° С, oil. Vacation 420 ° С, air. |
1570 |
1710 |
five |
20 |
|
Mechanical properties depending on the tempering temperature
| vacation t, ° С |
σ 0.2, MPa |
σ B, MPa |
δ 5 ,% |
ψ,% |
| Hardening 870 ° C |
| 380 |
1780 |
1920 |
6 |
40 |
| 400 |
1690 |
1760 |
6 |
41 |
| 420 |
1530 |
1640 |
7 |
41 |
| 440 |
1390 |
1490 |
8 |
42 |
| 460 |
1360 |
1440 |
8 |
41 |
| 480 |
1230 |
1340 |
nine |
40 |
| 500 |
1210 |
1300 |
ten |
41 |
| 520 |
1100 |
1170 |
12 |
43 |
Technological properties of steel 60S2N2A
| Forging temperature |
| Beginning 1150, end 850. |
| Weldability |
| not applicable for welded structures. |
| Tendency to release ability |
| not inclined |
| Flock sensitivity |
| sensitive |
Temperature of critical points of steel 60S2N2A
| Critical point |
° C |
| Ac1 |
765 |
| Ac3 |
780 |
Hardenability of steel 60S2N2A
| Distance from the end, mm / HRC e |
| |
| |
| Heat treatment |
Crit. Diam. in oil, mm |
| Hardening |
50 |
Physical properties of steel 60S2N2A
| Test temperature, ° С |
20 |
100 |
200 |
300 |
400 |
500 |
600 |
700 |
800 |
900 |
| Normal elastic modulus, E, GPa |
191 |
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| Torsional shear elastic modulus G, GPa |
78 |
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