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Cold Drawn Erw Mild Steel Tubes , Stainless Steel Erw Pipe St37.4 E255 E235+N
| Place of Origin | China |
|---|---|
| Brand Name | Best |
| Certification | API /CE / ISO /TUV |
| Model Number | 1/2'' -48'' |
| Minimum Order Quantity | 1 TONS |
| Price | 450 USD/TON |
| Packaging Details | 1) In bundle with strip; 2) First packing by plastic bag then strip; Details packing please see the picture in the detial description. |
| Delivery Time | Shipped in 25 days after payment |
| Payment Terms | L/C, T/T |
| Supply Ability | 100000 Ton/Year |
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xProduct Details
| Standard | PN-EN 10305-2 | Grade | Cold Drawn Steel Tubes |
|---|---|---|---|
| Technique | E155 , E195, E235 , E275 | Finish | SAWH |
| Keyword | SAWL (longitudinal Welding) | Inspection | With Hydraulic Testing |
| Surface | Barded /Painting | ||
| High Light | erw steel tube,erw steel line pipe |
||
Product Description
Production Information : HIDRAULIKUS ÉS PNEUMATIKUS CSÖVEK, (HIDEGEN VONT VARRATNÉLKÜLI
CSÖVEK)
Kifejezetten gépipari célokra gyártott hidraulikus, pneumatikus rendszerekhez alkalmas nagy méretpontosságú honolt
és honolatlan acélcsövek, a méretek többségénél megfelelő dugattyúrudat is tudunk biztosítani.
Hegesztett és varrat nélküli kivitelben, horganyzott és krómozott felülettel is, zylinder, vezeték, nyomó csövek,
dugattyúrudak.
Méretválaszték: Ø 4-1600 mm, egyedi méretekre gyártási lehetőség
Szabványok: varrat nélküli: EN 10305-4, EN 10205-1/2, DIN 2391
Minőségek: St37.4., E255, E235+N, E355+N, E410, St 52., St52.3., St E460, C10. 16NiCrMo2, 16CrMnS5, C35, C45, C60,
25CrMo4, 30CrMo4, 42CrMo4
Hőkezeltségi állapotok: N (NBK), C (BK), SR (BKS) – LC (BKW), A (GBK)
Felületkezelés: enyhén olajozott korrózió ellen.
Tűrések: H8, H9, H11, szabvány szerint, egyedi beállításra van lehetőség.
Hosszak: 4-13 (22) m, egyedi beállításra, darabolásra van lehetőség.
HYDRAULIC AND PNEUMATIC TUBES (COLD DRAWN SEAMLESS TUBES)
Sepecifically for machinery purposes: tubes for hydraulic, pneumatic systems, high precision honed and non-honed
tubes. We can provide you also bars for hydraulic pistons for majority of the tubes.
We can procide you chromed bars, galvanised and galvan free tubes, cylinder tubes, hydraulic line pipes.
Size assortment: Ø 4-1600 mm, possibility to produce customised sizes..
Standards: seamless: EN 10305-4, EN 10205 1/2, DIN 2391, welded: DIN 2394
Qualities: St37.4., E255, E235+N, E355+N, E410, St 52., St52.3., St E460, C10. 16NiCrMo2, 16CrMnS5, C35, C45, C60,
25CrMo4, 30CrMo4, 42CrMo4
Heat treatment: N (NBK), C (BK), SR (BKS) – LC (BKW), A (GBK)
Surface treatment: slightly oiled against corrosion.
Tolerances: H8, H9, H11 acc. To standard, possibility to make customised parameters.
Lenghts: 4-13 (22) m, possibility to make customised lengths.
The advantage of steel tubes for precision applications is the high precision of their manufacturing, the good quality of their surface, and the guaranteed mechanical and technological properties. That is why the pipes are widely used in the machining industry and in the automotive industry. Welded pipes for precision applications are manufactured in the process of cold drawing.
PN-EN10305-2 Delivery condition
| Designation | Symbol | Description |
| Cold drawn / hard | +C | Without thermal processing, after the process of cold drawing is finished |
| Cold drawn / soft | +LC | After final thermal processing, appropriate drawing |
| Cold drawn and annealed | +SR | After the final cold drawing process and annealing thermal processing in a controlled atmosphere |
| Annealed | +A | After the final cold drawing process, the pipes are annealed in a controlled atmosphere |
| Normalized | +N | After the final cold drawing process, the pipes are normalized in a controlled atmosphere |
Mechanical properties in room temperature
| Steel grade | Maximum values depending on the delivery condition | |||||||||||
| +C | +LC | +SR | +A | +N | ||||||||
| Steel symbol | RmMPa | A % | RmMPa | A % | RmMPa | ReHMpa | A % | RmMPa | A % | Rm MPa | ReHMpa | A % |
| E155 | 400 | 6 | 350 | 10 | 350 | 245 | 18 | 260 | 28 | 270 do 410 | 155 | 28 |
| E195 | 420 | 6 | 370 | 10 | 370 | 260 | 18 | 290 | 28 | 300 do 440 | 195 | 28 |
| E235 | 490 | 6 | 440 | 10 | 440 | 325 | 14 | 315 | 25 | 340 do 480 | 235 | 25 |
| E275 | 560 | 5 | 510 | 8 | 510 | 375 | 12 | 390 | 21 | 510 do 550 | 275 | 21 |
| E355 | 640 | 4 | 590 | 6 | 590 | 435 | 10 | 450 | 22 | 490 do 630 | 355 | 22 |
Chemical composition (ladle analysis)
| Steel grade | % of the mass | ||||
| Steel symbol | C max | Si max | Mn max | P max | S max |
| E155 | 0,11 | 0,35 | 0,70 | 0,025 | 0,025 |
| E195 | 0,15 | 0,35 | 0,70 | 0,025 | 0,025 |
| E235 | 0,17 | 0,35 | 1,20 | 0,025 | 0,025 |
| E275 | 0,21 | 0,35 | 1,40 | 0,025 | 0,025 |
| E355 | 0,22 | 0,35 | 1,60 | 0,025 | 0,025 |
Inspection and test list
| Inspection or test type | Test frequency | ||
| Internal tests | Acceptance test | ||
| Mandatory | Chemical analysis | M | M |
| Tensile testing | M | One per tested batch | |
| Dimension verification | M | M | |
| Visual inspection | M | M | |
| Optional | Flattening test or expansion test (option 18) | M | One per tested batch |
| Roughness testing | Not applicable | One per tested batch | |
| NDT of the weld in order to identify any longitudinal discontinuities | Not applicable | Individual | |
| NDT in order to detect any leaks | |||
PN-EN 10305-2 Cold drawn steel tubes for precision applications Pictures
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