Steel 35G
Description
Steel 35G
Steel 35G: 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 35G.
General information of steel 35G
| Delivery type |
| long products, including shaped: GOST 4543−71. Calibrated bar GOST 4543−71. Polished rod and silver bar GOST 4543−71. Forgings and forged billets GOST 8479−70. |
| Application |
| rods, axles, shackles, traverses, levers, couplings, shafts, sprockets, cylinders, discs, spindles, couplings of steam turbines, bolts, nuts, screws and other parts that are subject to low strength requirements. |
The chemical composition of steel 35G
| Chemical element |
% |
| Silicon (Si) |
0.17−0.37 |
| Manganese (Mn) |
0.70−1.00 |
| Copper (Cu), no more |
0.30 |
| Nickel (Ni), no more |
0.30 |
| Sulfur (S), no more |
0.035 |
| Carbon (C) |
0.32−0.40 |
| Phosphorus (P), no more |
0.035 |
| Chromium (Cr), no more |
0.30 |
Mechanical properties of 35G steel
Mechanical properties
| Heat treatment, delivery condition |
Section, mm |
σ 0.2, MPa |
σ B, MPa |
δ 5 ,% |
ψ,% |
KCU, J / m 2 |
HB |
| Annealed or highly tempered steel |
> 5 |
|
|
|
|
|
207 |
| Work-hardened steel |
> 5 |
|
|
|
|
|
269 |
| Bar. Hardening 860 ° C, water or air. Vacation 600 ° С, air |
25 |
340 |
570 |
eighteen |
45 |
70 |
|
| Normalization 850−870 ° C. Vacation 600−630 ° C. Longitudinal specimen cutting place — 1 / 3R |
<700 |
310 |
600−720 |
sixteen |
40 |
40 |
187−217 |
Technological properties of 35G steel
| Forging temperature |
| Beginning 1250, end 800. |
| Tendency to release ability |
| not inclined |
| Flock sensitivity |
| low |
