WUXI SYLAITH SPECIAL STEEL CO.,LTD
WUXI SYLAITH SPECIAL STEEL CO.,LTD has been committed to being a major supplier of quality kinds of carbon steel pipe. stainless steel pipe, hollow scetion, numerous types of piping equipments
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Heat Treatment DIN2391 Precision Steel Tubing with Thick Wall for Automotive Engineering
Product Description:
Widely used in the hydraulic cylinder of the heavy machinery, Cranes, excavator also forklifts. Material is various, mainly STKM-13CT, ST52, CK
45 and AISI 1020. We can also offer as customized seamless steel tube.
| standard | GB/T3639-2000 | DIN2391 | EN10305 | ASTM A519 |
| metarial | C20 CK45 Q355B Q355D | E355/ST52 SAE1026 | 4130 4140 | STKM 13C |
| Heat treatment | BK+S | |||
| size | I.D:30mm-400mm | O.D:40mm-480mm | ||
| length | Fixed length | Random length or as requests of customers | ||
| Straightness | 1/1000 | |||
| Technology | Honed SRB(SKIVED AND ROLLER BURNISHED) | |||
| Scope | Honed tube for hydraulic cylinder,swivel crane,injection machine and construction machine application | |||
Chemical Composition:
| Steel grade | Chemical composition, as a percentage by mass | |||||
| Symbol | Material number | C | Si | Mn | P | S |
| 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%. | ||||||
Final Supply Conditions:
| Designation | Symbol | Description |
| Cold finished (hard) | BK | Tubes do not undergo heat treatment following the final cold forming and, thus, have a rather high resistance to deformation. |
| Cold finished (soft) | BKW | The final heat treatment is followed by cold drawing involving limited deformation. Appropriate further processing allows a certain degree of cold forming (e.g. bending, expanding). |
| Cold finished and stress-relieved | BKS | Heat treatment is applied following the last cold forming process. Subject to appropriate processing conditions, the increase in the residual stresses involved enables both forming and machining to a certain degree. |
| Annealed | GBK | The last cold forming process is followed by annealing in a controlled atmosphere. |
| Normalized | NBK | The last cold forming process is followed by annealing above the upper transformation point in a controlled atmosphere. |
Condition on Delivery:
| Steel Grade | BK | BKW | GBK | NBK | ||||
| Code No. | Tensile Strength N/mm2 min | Elongation at rupture N/mm2 min | Tensile Strength N/mm2 min | Elongation at rupture N/mm2 min | Tensile Strength N/mm2 min | Elongation at rupture N/mm2 min | Tensile Strength N/mm2 min | Elongation at rupture N/mm2 min |
| St30 Si | 400 | 8 | 330 | 12 | 280 | 30 | 290-420 | 30 |
| St30 Al | 400 | 8 | 330 | 12 | 280 | 30 | 290-420 | 30 |
| St 35 | 440 | 6 | 370 | 10 | 315 | 25 | 340-470 | 25 |
| St 45 | 540 | 5 | 470 | 8 | 390 | 21 | 440-570 | 21 |
| St 52 | 590 | 4 | 540 | 7 | 490 | 22 | 490-630 | 22 |
Detailed Photo:
Factroy Pictures:
Pipe & Tube Processing:
Steel Pipe & Tube Application:
Packaging and Shipping:
Certificates:
FAQ:
Q1: ARE YOU FACTORY OR TRADER?
A1: Wuxi Sylaith Special Steel Co.,Ltd is a manufacturer of steel pipe and tube since 2010. We've gained our Export Right and become an integrated company of industry and trade in order to satisfy buyer's multi-request on different material and products.
Q2: WHICH MATERIAL/PRODUCTS YOU CAN PROVIDE?
A2: Seamless Stainless Steel Pipe / Tube, Seamless Carbon Stainless Steel Pipe /Tube,Galvanized Steel Tube witn any Shape and Welded pipes can also be available.
Q3: HOW TO GET A SAMPLE?
A3: FREE samples are available for your checking and testing. And to get free samples, you need to send us you detailed receiving address (including post code) and your DHL/FedEx/UPS account for collecting samples, courier cost will be paid in your side.
Q4:CAN YOU PRODUCE THE PRODUCTS ACCORDING TO MY OWN DRAWINGS?
A4: Yes, we can produce the products according to your drawings that will be most satisfy you.
Q5: HOW TO VISIT YOUR FACTORY?
A5: Most of the main cities have flights to Shanghai; you can take flight to Shanghai Putong/Hongqiao International Airport.
If you come from Hongkong, it will take 2 hours by flight (every day 5 flight around noon time).