product description
Standard: EN10305-4(DIN2445/2), EN10305-1(DIN2391), ASTM A179
Steel Grade: E235 (ST35 ST37.4 ), E355 (ST52 ST52.4)
Size: OD: 4-120mm, WT: 0.5-10mm, Length: Fixed 6m or as your requirement
Surface treatment: galvanized--this tubes with a zinc coating of 8 to12μm and subsequently
Delivery condition: +N (NBK) normalized under controlled atmosphere
Delivery time: 15-45 days according to the quantity you need and if the goods in stock
Product Advantages
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Cutting sleeveCutting sleeve and nuts are imported from Germany- JS Brand -
Bending capacityMaximum bending capacity: Φ 60*5mm
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CleanlinessUltrasonic cleaning of inner and outer walls of steel pipes
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High pressureHigh pressure resistance, no leakage at connection points
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AssembleEasy to assemble and high efficiency
Product Video
Work flow chart
Raw material–>Inspection chemical analysis, physical performance, sizes-
->Cutting–>Chamfer grinding (deburring)–>Pickling–>Saponifiation-
->Cold drawn / cold rolled–>Straightening–>Cleaning (Oil removal)-
->Eddy current testing –>Anaerobic bright heat treatment (NBK)-
->Straightening–>Dimensional accuracy and surface testing-
->Eddy current testing–>Physical performance test–>Surface treatment (galvanized)-
->Cleaning and packaging–>Stock
Dimension
| OD | Thickness（m m） | ||||||||||
| mm | |||||||||||
| 6 | 6*1 | 6*1.5 | 6*2 | ||||||||
| 8 | 8*1 | 8*1.5 | 8*2 | ||||||||
| 10 | 10*1 | 10*1.5 | 10*2 | ||||||||
| 12 | 12*1 | 12*1.5 | 12*2 | 12*2.5 | |||||||
| 14 | 14*1 | 14*1.5 | 14*2 | 14*2.5 | 14*3 | ||||||
| 15 | 15*1 | 15*1.5 | 15*2 | 15*2.5 | 15*3 | ||||||
| 10*1 | 16*1 | 16*1.5 | 16*2 | 16*2.5 | 16*3 | ||||||
| 18 | 18*1.5 | 18*2 | 18*2.5 | 18*3 | 18*3.5 | 18*4 | |||||
| 20 | 20*1.5 | 20*2 | 20*2.5 | 20*3 | 20*3.5 | 20*4 | |||||
| 22 | 22*1.5 | 22*2 | 22*2.5 | 22*3 | 22*3.5 | 22*4 | |||||
| 25 | 25*2 | 25*2.5 | 25*3 | 25*3.5 | 25*4 | ||||||
| 28 | 28*2 | 28*2.5 | 28*3 | 28*3.5 | 28*4 | ||||||
| 30 | 30*2 | 30*2.5 | 30*3 | 30*3.5 | 30*4 | 30*4.5 | 30*5 | ||||
| 32 | 32*2 | 32*2.5 | 32*3 | 32*3.5 | 32*4 | 32*4.5 | 32*5 | ||||
| 34 | 34*2 | 34*2.5 | 34*3 | 34*3.5 | 34*4 | 34*4.5 | 34*5 | 34*6 | |||
| 35 | 35*2 | 35*2.5 | 35*3 | 35*3.5 | 35*4 | 35*4.5 | 35*5 | 35*6 | |||
| 38 | 38*2 | 38*2.5 | 38*3 | 38*3.5 | 38*4 | 38*4.5 | 38*5 | 38*6 | |||
| 40 | 40*2.5 | 40*3 | 40*3.5 | 40*4 | 40*4.5 | 40*5 | 40*6 | ||||
| 42 | 42*2.5 | 42*3 | 42*3.5 | 42*4 | 42*4.5 | 42*5 | 42*6 | ||||
| 45 | 45*2.5 | 45*3 | 45*3.5 | 45*4 | 45*4.5 | 45*5 | 45*6 | ||||
| 46 | 46*2.5 | 46*3 | 46*3.5 | 46*4 | 46*4.5 | 46*5 | 46*6 | ||||
| 48 | 48*2.5 | 48*3 | 48*3.5 | 48*4 | 48*4.5 | 48*5 | 48*6 | ||||
| 50 | 50*2.5 | 50*3 | 50*3.5 | 50*4 | 50*4.5 | 50*5 | 50*6 | ||||
| 54 | 54*3 | 54*3.5 | 54*4 | 54*4.5 | 54*5 | 54*6 | |||||
| 60 | 60*3 | 60*3.5 | 60*4 | 60*4.5 | 60*5 | 60*6 | 60*8 | ||||
Chemical composition
| Steel grade |
C max. |
Si max. |
Mn max. |
P max. |
S max. |
Altot min. |
|
| Name | Number | ||||||
| E215 | 1.0212 | 0.10 | 0.05 | 0.7 | 0.025 | 0.015 | 0.025 |
| E235 | 1.0308 | 0.17 | 0.35 | 1.2 | 0.025 | 0.015 | — |
| E355 | 1.0580 | 0.22 | 0.55 | 1.6 | 0.025 | 0.015 | — |
Tolerance
| Outer Diameter | Allowable tolerance | special tolerance | |||||
| GB/T3639 | DIN2391 | OD | WT | ||||
| 4mm-20mm | ±0.10mm | ±0.08mm | ±0.05mm | ±0.05mm | |||
| 20mm-30mm | ±0.10mm | ±0.08mm | ±0.08mm | ±0.08mm | |||
| 31mm-40mm | ±0.15mm | ±0.15mm | ±0.10mm | ±0.08mm | |||
| 41mm-60mm | ±0.20mm | ±0.20mm | ±0.15mm | ±0.15mm | |||
| 61mm-80mm | ±0.30mm | ±0.30mm | ±0.20mm | ±0.20mm | |||
| 81mm-120mm | ±0.45mm | ±0.45mm | ±0.30mm | ±0.30mm | |||
Mechanical Properties
| Steel grade | Yield strengtha | Tensile strength | Elongation | ||||
| Name | Number | ReH | Rm | A | |||
| min. | min. | min. | |||||
| MPa | MPa | % | |||||
| E215 | 1.0212 | 215 | 290 to 430 | 30 | |||
| E235 | 1.0308 | 235 | 340 to 480 | 25 | |||
| E355 | 1.0580 | 355 | 490 to 630 | 22 | |||
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Application
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