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Address: 168 Qiangao Road, Liangxi District, Wuxi,China
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DIN 1630 Industrial Seamless Steel Fluid Pipe Thickness 0.8 mm ~ 30mm ST35 ST45 ST52
Seamless steel pipes are divided into two categories: hot-rolled and cold-rolled (dial) seamless steel pipes.
| Producet Name | DIN 1630 Industrial Seamless Steel Fluid Pipe Thickness 0.8 mm ~ 30mm ST35 ST45 ST52 |
| Standard | DIN 1630 |
| Grade | St35 , St45, St52 |
| Out Dimension | 6 mm ~ 350 mm |
| Wall Thickness | 0.8 mm ~30mm |
| Length | Fixed(6m,9m,12,24m) or normal length(5-12m) |
| 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 |
| Mark | As requested |
| Delivery Condition | Annealed, Normalized, Normalized and Tempered |
Chemical composition
Chemical composition(cast analysis)a | ||||||
Steel grade | % by mass | |||||
Steel name | Steel number | C | Si | Mn | P | S |
max. | max. |
| max. | max. | ||
ST35 | 1.0305 | 0.17 | 0.35 | ≥0.40 | 0.025 | 0.025 |
ST45 | 1.0408 | 0.21 | 0.35 | ≥0.40 | 0.025 | 0.025 |
ST52 | 1.0580 | 0.22 | 0.55 | ≤1.60 | 0.025 | 0.025 |
Mechanical properties at room temperature
Steel grade | Minimum values for the delivery condition | ||||||||||||
Steel name | Steel number | BK | BKW | BKS | GBK | NBK | |||||||
Rm | A | Rm | A | Rm | ReH | A | Rm | A | Rm | ReH | A | ||
MPa | % | MPa | % | MPa | MPa | % | MPa | % | MPa | MPa | % | ||
ST35 | 1.0305 | 480 | 6 | 420 | 10 | 420 | 315 | 14 | 315 | 25 | 340 to 470 | 235 | 25 |
ST45 | 1.0408 | 580 | 5 | 520 | 8 | 520 | 375 | 12 | 390 | 21 | 440 to 570 | 255 | 21 |
ST52 | 1.0580 | 640 | 4 | 580 | 7 | 580 | 420 | 10 | 490 | 22 | 490 to 630 | 355 | 22 |
Applications
Mainly used in automotive, military, railway, industry with high requirement of the tube’s brightness, cleanness, antirust and antisepsis.
Factroy Picture
Pipe & Tube Production Line
Quality Control
Package
Export Standard / Wooden Box
Main Certificate
