Steel 09G2S
Description
Steel 09G2S
Steel 09G2S: a brand of steels and alloys. Below is the 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 09G2S characteristics.
General information of 09G2S steel
| Substitute brand |
| steel: 09G2, 09G2DT, 09G2T, 10G2S. |
| Delivery type |
| Pipe 09g2s, sheet 09g2s, circle 09g2s, beam 09g2s, channel 09g2s, corner 09g2s, long products, including shaped: GOST 19281−73, GOST 2590−71, GOST 2591−71, GOST 8240−72. Thick sheet GOST 19282−73, GOST 5520−79, GOST 5521−76, GOST 19903−74. Thin sheet GOST 17066−80, GOST 19903−74, GOST 19904−74. Strip GOST 103−76, GOST 82−70. Forgings and forged billets GOST 1133−71. |
| Application |
| various parts and elements of welded metal structures operating at temperatures from -70 to + 425 ° C. |
Density of 09G2S steel
Density of 09G2S steel = 7850 kg / m 3
Chemical composition of 09G2S steel
| Chemical element |
% |
| Nitrogen (N), no more |
0.008 |
| Silicon (Si) |
0.5−0.8 |
| Manganese (Mn) |
1.3−1.7 |
| 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 ©, no more |
0.12 |
| Phosphorus (P), no more |
0.035 |
| Chromium (Cr), no more |
0.30 |
Mechanical properties of 09G2S steel
| Heat treatment, delivery condition |
Section, mm |
σ 0.2, MPa |
σ B, MPa |
δ 5 ,% |
δ 4 ,% |
| Sections and sections |
<10 |
345 |
490 |
21 |
|
| Sheets and strips (cross samples) |
10−20 |
325 |
470 |
21 |
|
| Sheets and strips (cross samples) |
20−32 |
305 |
460 |
21 |
|
| Sheets and strips (cross samples) |
32−60 |
285 |
450 |
21 |
|
| Sheets and strips (cross samples) |
60−80 |
275 |
440 |
21 |
|
| Sheets and strips (cross samples) |
80−160 |
265 |
430 |
21 |
|
| Sheets after quenching, tempering (transverse samples) |
10−32 |
365 |
490 |
19 |
|
| Sheets after quenching, tempering (transverse samples) |
32−60 |
315 |
450 |
21 |
|
| Hot rolled sheets |
2−3.9 |
|
490 |
|
17 |
Mechanical properties at elevated temperatures
| test t, ° C |
σ 0.2, MPa |
σ B, MPa |
δ 5 ,% |
ψ,% |
| Normalization 930−950 ° C |
| 20 |
300 |
460 |
31 |
63 |
| 300 |
220 |
420 |
25 |
56 |
| 475 |
180 |
360 |
34 |
67 |
Mechanical properties depending on the tempering temperature
| vacation t, ° С |
σ 0.2, MPa |
σ B, MPa |
δ 5 ,% |
ψ,% |
| Sheets 34 mm thick as delivered HB 112−127 (transverse samples) |
| 20 |
295 |
405 |
thirty |
66 |
| 100 |
270 |
415 |
29 |
68 |
| 200 |
265 |
430 |
|
|
| 300 |
220 |
435 |
|
|
| 400 |
205 |
410 |
27 |
63 |
| 500 |
185 |
315 |
|
63 |
Technological properties of 09G2S steel
| Forging temperature |
| Beginning 1250, end 850. |
| Weldability |
| weldable without restrictions. Welding methods: RDS, ADS submerged arc and gas shielded, EShS. |
| Machinability by cutting |
| In the normalized, tempered state at σ B = 520 MPa K υ tv.spl. = 1.6, K υ b.st. = 1.0. |
| Tendency to release ability |
| not inclined |
| Flock sensitivity |
| not sensitive |
Temperature of critical points of steel 09G2S
| Critical point |
° C |
| Ac1 |
725 |
| Ac3 |
860 |
| Ar3 |
780 |
| Ar1 |
625 |
Impact strength of 09G2S steel
Impact strength, KCU, J / cm 2
| Delivery status, heat treatment |
+20 |
-40 |
-70 |
| GOST 19281−73. Sections and shapes with a section of 5−10 mm. |
64 |
39 |
34 |
| GOST 19281−73. Sections and shapes with a section of 10−20 mm. |
59 |
34 |
29 |
| GOST 19281−73. Sections and sections with a section of 20−100 mm. |
59 |
34 |
|
| GOST 19282−73. Sheets and strips with a cross section of 5−10 mm. |
64 |
39 |
34 |
| GOST 19282−73. Sheets and strips with a cross section of 10−160 mm. |
59 |
34 |
29 |
| GOST 19282−73. Sheets after quenching, tempering (Cross samples) with a section of 10−60 mm |
|
49 |
29 |
Endurance limit of 09G2S steel
| σ -1, MPa |
σ B, MPa |
| 235 |
475 |
Yield strength of 09G2S steel
| Test temperature, ° C / σ 0.2 |
| 250 |
300 |
350 |
400 |
| 225 |
195 |
175 |
155 |
Physical properties of 09G2S steel
| Test temperature, ° С |
20 |
100 |
200 |
300 |
400 |
500 |
600 |
700 |
800 |
900 |
| Test temperature, ° С |
20−100 |
20−200 |
20−300 |
20−400 |
20−500 |
20−600 |
20−700 |
20−800 |
20−900 |
20−1000 |
| Linear expansion coefficient (a, 10−6 1 / ° С) |
11.4 |
12.2 |
12.6 |
13.2 |
13.8 |
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