| Brand Name: | WUXI SYLAITH | 
| Model Number: | DIN2391 | 
| MOQ: | 1MT | 
| Price: | Negotiable | 
| Payment Terms: | L/C, T/T | 
| Supply Ability: | 8000MT/Month | 
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:
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Factroy Pictures:
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Pipe & Tube Processing:
Steel Pipe & Tube Application:
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Packaging and Shipping:
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Certificates:
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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).