Steel 35HGSL
Designation
| Name |
The value |
| Designation GOST Cyrillic |
35ХГСЛ |
| Designation GOST Latin |
35XGCL |
| Transliteration |
35HGSL |
| The chemical elements |
35CrMnС |
Description
35HGSL steel is used: for the manufacture of castings, gears, sprockets, axles, shafts, couplings and other critical parts, which are requirements of high wear-resisting; castings investment casting for aircraft industry group I — loaded items with the specific requirements for density and mechanical properties: high load brackets, sealed the housing, the frames of gyroscopes, stabilizers, etc. and group II — non-loaded and lightly loaded parts, rings, flanges, fittings, leaking instrument cabinets, etc.
Standards
| Name |
Code |
Standards |
| Castings, steel |
В82 |
GOST 977-88, OST 24.920.01-80, OST 3-4365-79, OST 1 90093-82, OST 1 80059-83 |
| Classification, nomenclature and general norms |
В20 |
OST 84-218-85, OST 1 90005-91 |
| Castings with special properties (cast iron and steel) |
В83 |
TU 1-812-0054-81, TU 4112-78269737-008-05 |
Chemical composition
| Standard |
C |
S |
P |
Mn |
Cr |
Si |
Ni |
Fe |
Cu |
N |
Al |
Mo |
W |
| OST 1 90093-82 |
0.32-0.4 |
≤0.025 |
≤0.025 |
0.9-1.2 |
0.7-1 |
0.6-0.9 |
≤0.4 |
The rest |
≤0.3 |
≤0.015 |
≤0.08 |
0.1-0.2 |
≤0.2 |
| GOST 977-88 |
0.3-0.4 |
≤0.04 |
≤0.04 |
1-1.3 |
0.6-0.9 |
0.6-0.8 |
- |
The rest |
- |
- |
- |
- |
- |
Fe is the basis.
Mechanical characteristics
| Section, mm |
t отпуска, °C |
sT|s0,2, MPa |
σB, MPa |
d5, % |
y, % |
kJ/m2, кДж/м2 |
Brinell hardness number, MPa |
HRC |
| Casting a cross section of 30 mm. Quenching in oil with 870-890 °C + vacation at 630-670 °C, air cooling |
| - |
- |
620-650 |
800-820 |
14-18 |
23-36 |
- |
- |
- |
| Gradation of performance properties of the finished heat-treated parts for OST 1 90005-91 |
| - |
- |
- |
780-980 |
- |
- |
- |
223-277 |
22-29 |
| Casting a cross section of 30 mm. Quenching in oil with 870-890 °C + vacation at 630-670 °C, air cooling |
| - |
- |
560-630 |
720-780 |
12-16 |
31-49 |
- |
- |
- |
| Gradation of performance properties of the finished heat-treated parts for OST 1 90005-91 |
| - |
- |
- |
980-1180 |
- |
- |
- |
277-341 |
29-36 |
| Hardening in air, 870-880 °C + vacation at 630-670 °C, air cooling |
| 100 |
- |
≥589 |
≥785 |
≥10 |
≥20 |
≥392 |
- |
- |
| Casting a cross section of 30 mm. Quenching in oil with 870-890 °C + vacation at 630-670 °C, air cooling |
| - |
- |
520-590 |
700-770 |
9-16 |
25-51 |
- |
- |
- |
| Normalization at 870-890 °C + vacation at 570-600 °C, air cooling |
| 100 |
- |
≥343 |
≥589 |
≥14 |
≥25 |
≥294 |
163-240 |
- |
| Casting a cross section of 30 mm. Quenching in oil with 870-890 °C + vacation at 630-670 °C, air cooling |
| - |
- |
545-610 |
720-830 |
9-16 |
12-39 |
- |
- |
- |
| Annealing at 850-870 °C, cooling with the furnace to 300 °C, air cooling |
| 30 |
- |
≥295 |
≥590 |
≥20 |
≥40 |
- |
- |
- |
| Casting a cross section of 30 mm. Quenching in oil with 870-890 °C + vacation at 630-670 °C, air cooling |
| - |
- |
500-680 |
640-680 |
10-22 |
31-66 |
- |
- |
- |
| Steel castings 35HGSL. Normalization at 890-910 °C with following tempering at 670-690 °C, air cooling or partial annealing at 780 °C, cooling with the furnace to 670 °C, air cooling + Tempering in oil 880-900 °C + Vacation |
| - |
630-670 |
≥590 |
≥780 |
≥12 |
≥30 |
≥490 |
223-277 |
- |
| Casting a cross section of 30 mm. Quenching in oil with 870-890 °C + vacation at 630-670 °C, air cooling |
| - |
- |
435-525 |
470-640 |
19-30 |
44-84 |
- |
- |
- |
| Steel castings 35HGSL. Normalization at 890-910 °C with following tempering at 670-690 °C, air cooling or partial annealing at 780 °C, cooling with the furnace to 670 °C, air cooling + Tempering in oil 880-900 °C + Vacation |
| - |
570-630 |
≥835 |
≥980 |
≥9 |
≥25 |
≥294 |
277-331 |
- |
| Casting a cross section of 30 mm. Normalization at 870-890 °C + vacation at 570-600 °C, air cooling |
| - |
- |
445-460 |
725-810 |
18-22 |
33-44 |
- |
- |
- |
| - |
- |
390-435 |
700-780 |
12-17 |
30-48 |
- |
- |
- |
| - |
- |
350-420 |
680-750 |
10-16 |
19-44 |
- |
- |
- |
| - |
- |
395-440 |
730-790 |
12-22 |
24-49 |
- |
- |
- |
| - |
- |
380-425 |
640-680 |
19-23 |
56-68 |
- |
- |
- |
| - |
- |
335-370 |
475-500 |
24-33 |
68-74 |
- |
- |
- |
Description mechanical marks
| Name |
Description |
| Section |
Section |
| sT|s0,2 |
Yield strength or limit of proportionality with a tolerance for residual deformation of 0.2% |
| σB |
Limit short-term strength |
| d5 |
Elongation after rupture |
| y |
The relative narrowing |
| kJ/m2 |
Toughness |
| HRC |
Rockwell hardness (indenter diamond spheroconical) |
Physical characteristics
| Temperature |
Е, ГПа |
G, ГПа |
r, кг/м3 |
l, Вт/(м · °С) |
R, НОм · м |
a, 10-6 1/°С |
С, Дж/(кг · °С) |
| 0 |
215 |
84 |
7800 |
36 |
311 |
- |
- |
| 20 |
215 |
- |
7800 |
36 |
311 |
- |
- |
| 100 |
211 |
82 |
- |
37 |
343 |
118 |
496 |
| 200 |
203 |
79 |
- |
38 |
419 |
123 |
504 |
| 300 |
196 |
76 |
- |
38 |
504 |
128 |
512 |
| 400 |
184 |
71 |
- |
37 |
579 |
133 |
533 |
| 500 |
174 |
66 |
- |
35 |
663 |
138 |
554 |
| 600 |
164 |
62 |
- |
33 |
824 |
141 |
584 |
| 700 |
143 |
54 |
- |
32 |
981 |
144 |
622 |
| 800 |
125 |
47 |
- |
30 |
1133 |
126 |
693 |
| 900 |
- |
- |
- |
29 |
1187 |
126 |
693 |
| 1100 |
- |
- |
- |
- |
- |
133 |
689 |
A description of the physical symbols
| Name |
Description |
| Е |
The normal elasticity modulus |
| G |
Modulus of elasticity shear torsion |
| r |
Density |
| l |
Coefficient of thermal conductivity |
| R |
UD. the resistivity |
Technological properties
| Name |
The value |
| Weldability |
limited weldability. The welding process - SMAW. Recommended heating and subsequent heat treatment. |
| Propensity to temper brittleness |
malosana |
| Flock-sensitive sensitivity |
insensitive |
