Q335B Straight Seam Welded Steel Pipe
To ensure the performance of Q335B Straight Seam Welded Steel Pipe during manufacturing, several critical process parameters must be strictly controlled:
Chemical Composition: The carbon content should be within the specified limits to achieve the desired mechanical properties .
Milling: The edges of the steel plate must be milled to achieve the required parallelism and groove shape .
Pre-bending: The plate edges should be pre-bent to meet the specifications for welding .
Forming: The plate should be formed into a round shape through multiple steps of stamping .
Pre-welding: Seam welding should be conducted with continuous welding techniques such as gas shielded welding .
Internal Welding: Internal welding should be performed using multi-wire submerged arc welding to ensure strength and integrity .
Non-destructive Testing (NDT): Ultrasonic or radiographic testing should be carried out to ensure there are no defects in the welds .
Heat Treatment: Post-weld heat treatment may be necessary to reduce residual stresses and improve the toughness of the steel .
Hydrostatic Testing: The pipes should undergo hydrostatic testing to ensure they can withstand the pressure they will be subjected to in service .
Quality Assurance: Regular inspections and testing at various stages of the manufacturing process to maintain the integrity of the final product
| Length | According to your requirement |
Dia Tolerance |
Control with in the standard, OD:+-1%, WT:+-10% |
Packing |
Steel strip packed. Standard Export Seaworthy Package.Suit forall kinds of transport,or as required |
| Application | Widely used in Structure, Accessorize,Construction, Fluid transportation,machinery parts,the stress parts of the automobile tractor parts and so on |
Delivery time |
7-14 Days |
FAQ：
1. Q: Can you arrange the shipment for us?
A: Yes, we have designated sea freight and railway freight forwarders with decades of experiences and we get the best price with
earlist vessel and professional service.
2. Q: How long is your delivery time?
A: Generally it is 7days if we have the exact goods in our stock. If not, it will take around 15-20 days to get goods ready for
delivery.
3. Q: Can I get some samples?
A: We are glad to provide free samples to you, but we do not offer the freight.
4. Q: What is your after-sale service?
A: We provide after-sale service and offer 100% guarantee on our products.
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