Steel 14HGS
Description
Steel 14HGS
Steel 14HGS: 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 14HGS.
General information about steel 14HGS
| Substitute brand |
| steel: 15HSND, 16GS, 14GN, 16GN, 14SND. |
| Delivery type |
| thick sheet GOST 19282−73, GOST 19903−74. Thin sheet GOST 17066−80, GOST 19903−74, GOST 19904−74. Strip GOST 82−70. |
| Application |
| welded structures, sheet, valve structural parts. |
Chemical composition of steel 14HGS
| Chemical element |
% |
| Silicon (Si) |
0.4−0.7 |
| Manganese (Mn) |
0.9−1.3 |
| Copper (Cu), no more |
0.30 |
| Arsenic (As), no more |
0.08 |
| Nickel (Ni), no more |
0.30 |
| Sulfur (S), no more |
0.040 |
| Carbon (C) |
0.11−0.16 |
| Phosphorus (P), no more |
0.035 |
| Chromium (Cr) |
0.5−0.8 |
Mechanical properties of steel 14HGS
| Heat treatment, delivery condition |
Section, mm |
σ 0.2, MPa |
σ B, MPa |
δ 5 ,% |
| Sheets and strips (cross samples) |
<10 |
345 |
490 |
22 |
| Hot rolled sheets |
2−3.9 |
|
490 |
|
Mechanical properties depending on the tempering temperature
| vacation t, ° С |
σ 0.2, MPa |
σ B, MPa |
δ 10 ,% |
KCU, J / m 2 |
HB |
| Strip 11 mm thick. Hardening 900 ° C, water. Vacation exposure 2 h |
| 100 |
1000 |
1270 |
8 |
98 |
390 |
| 200 |
1060 |
1250 |
8 |
98 |
390 |
| 300 |
980 |
1180 |
7 |
88 |
360 |
| 400 |
880 |
1020 |
7 |
103 |
310 |
| 500 |
770 |
860 |
ten |
176 |
|
| 600 |
670 |
730 |
12 |
196 |
210 |
| 700 |
490 |
590 |
19 |
245 |
180 |
Mechanical properties depending on sheet thickness
| Heat treatment, delivery condition |
σ 0.2, MPa |
σ B, MPa |
δ 10 ,% |
ψ,% |
| Normalization |
| Sheet thickness 10 mm |
420 |
580 |
22 |
47 |
| Sheet thickness 20 mm |
420 |
|
19 |
47 |
| Sheet thickness 30 mm |
390 |
580 |
|
55 |
Technological properties of steel 14HGS
| Forging temperature |
| The beginning is 1200, the end is 850. |
| Weldability |
| RDS without restrictions, submerged arc ADS and gas shielded. |
| Tendency to release ability |
| inclined |
| Flock sensitivity |
| not sensitive |
Impact strength of steel 14HGS
Impact strength, KCU, J / cm 2
| Delivery status, heat treatment |
+20 |
-20 |
-40 |
-60 |
| Sheets and strips (Cross samples) 5−10 mm thick |
|
|
St. 39 |
|
| Sheets and strips (Cross samples) with a thickness of St. 10 mm |
|
|
St. 34 |
|
| Hot-rolled sheets 10 mm thick |
73−96 |
61−85 |
8−26 |
5−8 |
| Annealed sheets 10 mm thick |
120−125 |
76−87 |
62−85 |
57−78 |
| Sheets after quenching, tempering 10 mm thick |
113−118 |
84−93 |
71−84 |
71−74 |
