Steel 11JUA
Designation
| Name |
The value |
| Designation GOST Cyrillic |
11ЮА |
| Designation GOST Latin |
11JuA |
| Transliteration |
11YuA |
| The chemical elements |
11Al |
Description
Steel 11JUA used: for the manufacture of grooved machined bars with diameter 20−60 mm; hot-rolled bars intended for the manufacture of clad strips by hot rolling; cold-rolled strip thickness of 1.37 mm and a width of 122−160 mm, intended for manufacturing parts by the method of deep drawing.
Note
Structural steel is low carbon high quality.
Steel 11JUA stamps can be manufactured with additional microalloying with vanadium, titanium and boron.
Standards
| Name |
Code |
Standards |
| Sheets and stripes |
В33 |
GOST 803-81, TU 14-1-4516-88 |
| Tapes |
В34 |
GOST 8851-75 |
| Bulls. Blanks. Slabs |
В31 |
TU 14-1-1117-74 |
| Sectional and shaped rolling |
В22 |
TU 14-1-3455-82 |
| Sheets and stripes |
В23 |
TU 14-1-4632-93 |
| Pipes steel and connecting parts to them |
В62 |
TU 14-3-463-2005 |
Mechanical characteristics
| Section, mm |
σB, MPa |
d10 |
| Cold-rolled steel strip according to GOST otoshiana 8851-75 on delivery |
| 1.37 |
300-420 |
≥28 |
| Bars grooved machined steel without microalloying in the state of delivery on the other 14-1-3455-82 |
|
≥330 |
- |
Description mechanical marks
| Name |
Description |
| Section |
Section |
| σB |
Limit short-term strength |
| d10 |
Elongation after rupture |
Technological properties
| Name |
The value |
| Macrostructure and contamination |
The macrostructure of bars on the other 14-1-3455-82 when plavochek control should not have a discontinuity of metal in the form nezavisima bubbles, remnants of shrinkage looseness, delamination, subcortical bubbles, rough defects are visible without the use of magnifying devices and shall conform to the requirements scores no more: Central porosity - 3 points, a point inhomogeneity - 3 points, liquation Pousada - 1.5 points. Bars put control of grain ferrite and ferrite of poloschatosti. Grain ferrite should be not larger than 5 points, banding of ferritic - no more than 2 points. Rods control on the contamination of steel by nonmetallic inclusions. The content of nonmetallic inclusions by the maximum score should be no more than: oxides (OS, CX, SP) - 3 points, the sulphides (A) - 3 points. Presence of oxides in steel up to 3.5 points up to 20% of the mass of delivery. |
