Steel B
Steel E
B Steel
Steel D27
D27S steel
Steel D32
D36 steel
Steel D40
D40S steel
A40 steel
E27 Steel
E27S Steel
E32 steel
E36 Steel
E40 steel
E40S steel
X18G13AN4 steel
Steel D
Steel 40G18Yu3F (Yu3F)
08Cr18Ni10Gt steel
Steel 12G2MFT
12X18H10GT steel
Steel 18Х20Н13 (ЭИ997)
Steel 25KhGMNTBA (25KhG2MNTBA)
Steel 26G2STa
Steel 28ХГНМФД
38Kh3M1F1A steel
A40S steel
Steel 45Г17Ю3 (Ю3; ЭИ839)
Steel 50G23Kh4FV7 (48VNNK-2)
Steel 80G20F2Yu (F2)
Steel A
A27S steel
A32 steel
A36 steel
Designation
| Name | The value |
|---|---|
| Designation GOST Cyrillic | B |
| Designation GOST Latin | B |
| Transliteration | B |
| The chemical elements | B |
Description
Steel B is used: for the production of plate, universal broadband, bandpass and shaped rolled, intended for the manufacture of shells and other welded structures of ships and floating structures.
Note
Steel normal strength.
Standards
| Name | Code | Standards |
|---|---|---|
| Sheets and stripes | В23 | GOST 5521-93, TU 14-1-4264-87 |
Chemical composition
| Standard | C | S | P | Mn | Cr | Si | Ni | Fe | Cu | N | As | Al |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| GOST 5521-93 | ≤0.21 | ≤0.04 | ≤0.04 | 0.6-1 | ≤0.3 | 0.15-0.35 | ≤0.4 | The rest | ≤0.35 | ≤0.008 | ≤0.08 | 0.015-0.06 |
Fe is the basis.
According to GOST 5521-93, the mass fraction of nitrogen is allowed up to 0.012%, provided that KCU ≥ 294 kJ / m 2 is provided in the rolled product after mechanical aging at 20 ° C. The mass fraction of manganese is allowed up to 1.40%. Total mass fraction C% + Mn / 6% ≤ 0,40%. It is allowed in place of aluminum soluble in acids, to determine its total mass fraction, while the rate increases by 0.005%. Partial replacement of aluminum with titanium is allowed: the total mass fraction of aluminum and titanium should be at least 0.015%, the mass fraction of titanium - not more than 0.020%, the mass fraction of aluminum soluble in acids - not less than 0.005%. The microalloying of niobium and (or) vanadium steel to 0.05 and 0.10%, respectively, or other grain refining admixtures is permitted in agreement with the consumer.
According to GOST 5521-93, the mass fraction of nitrogen is allowed up to 0.012%, provided that KCU ≥ 294 kJ / m 2 is provided in the rolled product after mechanical aging at 20 ° C. The mass fraction of manganese is allowed up to 1.40%. Total mass fraction C% + Mn / 6% ≤ 0,40%. It is allowed in place of aluminum soluble in acids, to determine its total mass fraction, while the rate increases by 0.005%. Partial replacement of aluminum with titanium is allowed: the total mass fraction of aluminum and titanium should be at least 0.015%, the mass fraction of titanium - not more than 0.020%, the mass fraction of aluminum soluble in acids - not less than 0.005%. The microalloying of niobium and (or) vanadium steel to 0.05 and 0.10%, respectively, or other grain refining admixtures is permitted in agreement with the consumer.
Mechanical characteristics
| Section, mm | sT|s0,2, MPa | σB, MPa | d5, % |
|---|---|---|---|
| Rental in the state of delivery according to GOST 5521-93 | |||
| ≥235 | 400-490 | ≥22 | |
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 |
