6M 9M 12M 24M Seamless Steel Pipe High Strength DIN 2391 St 30 Si / St 30 Al Grade
Quick Detail:
Standard: DIN 2391
Grade: St 30 Si / St 30 Al / St 35 / St45 / St 52
Size:(mm)
Out Dimensions: 6 mm ~ 350 mm
Wall Thickness: 0.8 mm ~30mm
Length: Fixed(6m,9m,12,24m) or normal length(5-12m)
Description:
Main grade we supply for DIN 2391
St 30 Si / St 30 Al / St 35 / St45 / St 52
Delivery Condition:
Heat treatment,Annealed, Normalized, Normalized and Tempered
Packing:
Beveled/black painting/ plastic caps/ in bundles/ steel strips/ wooden protection
Inspection and Test:
Chemical Composition Inspection, Mechanical Properties Test(Tensile Strength, Yield Strength,Elongation, Flaring, Flattening, Bending, Hardness, Impact Test),Surface and Dimension Test,Nodestructive Test, Hydrostatic Test.
Surface treatment:
Oil-dip, Varnish, Passivation, Phosphating, Shot Blasting
Painting as requested.
Chemical Composition:
| Steel grade | Chemical composition, as a percentage by mass | |||||
| Symbol | Material number | C max. |
Si max. |
Mn | P max. |
S max. |
| St 30 Si | 1.0211 | 0.10 | 0.30 | <=0.55 | 0.025 | 0.025 |
| St 30 Al | 1.0212 | 0.10 | 0.05 | <=0.55 | 0.025 | 0.025 |
| St 35 | 1.0308 | 0.17 | 0.35 | <=0.40 | 0.025 | 0.025 |
| St 45 | 1.0408 | 0.21 | 0.35 | <=0.40 | 0.025 | 0.025 |
| St 52 | 1.0580 | 0.22 | 0.55 | <=1.60 | 0.025 | 0.025 |
| The following alloying elements may be added: Nb: <=0,03%; Ti: <=0,03%; V: <=0,05%; Nb + Ti + V: <=0,05%. | ||||||
