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Hebei Province Gold Mysterious Pipe Co.,Ltd is a professional manufacturer of all kinds of seamless steel pipe,products include common seamless steel pipes,alloy steel pipes and special shape pipes in thickness between 1mm-12mm,outer diameter between 8mm-80mm.
Seamless Steel Structural Tubing China
Seamless steel pipe HS code 7304 319000/7304519090
Scope: Covers several grades of carbon and alloy steel seamless mechanical tubing. This specification covers both seamless cold-drawing mechanical tubing and seamless cold-rolling mechanical tubing.
Size Range: Covers tubes in size up to and including 80mm outside diameter for round tubes with wall thicknesses 1mm-12mm
Shape: The tubes shall be furnished in the following shapes, as specified by the purchaser: round, square,rectangular,hexagonal and special sections.
Marking: as per customer's requirement,your drawing or sample are welcomed.
Dimensions, Mechanical properties, Chemical compositions:
Refer to relative standard as per clients requirements
Packing :Bundles, seaworthy packing;Plastic caps at ends;as per customer's requirements.
Chemical Composition& Mechanical Properties(Type S-Seamless Pipe)
| Grade | C≤ | Mn | P≤ | S≤ | Si≥ | Cr"≤ | Cu"≤ | Mo"≤ | Ni"≤ | V"≤ |
| A | 0.25 | 0.27-0.93 | 0.035 | 0.035 | 0.10 | 0.40 | 0.40 | 0.15 | 0.40 | 0.08 |
| B | 0.30 | 0.29-1.06 | 0.035 | 0.035 | 0.10 | 0.40 | 0.40 | 0.15 | 0.40 | 0.08 |
| C | 0.35 | 0.29-1.06 | 0.035 | 0.035 | 0.10 | 0.40 | 0.40 | 0.15 | 0.40 | 0.08 |
"The total composition for these five elements shall not exceed 1.00%.
| Grade | Rm Mpa Tensile Strength | Mpa Yield Point |
Elongation | Delivery Condition |
| A | ≥330
|
≥205
|
20 | Annealed |
| B | ≥415 | ≥240 | 20 | Annealed |
| C | ≥485 | ≥275 | 20 | Annealed |
Dimensional Tolerances:
| Pipe Type | Pipe Sizes | Tolerances | |
| Cold Drawn | OD | ≤48.3mm | ±0.40mm |
| ≥60.3mm | ±1%mm | ||
| WT | ±12.5% | ||
Best service!Excellent products! Competitive price! And Quick delivery !
Our company specializes in production of various seamless steel pipes
for 6 years, Our products are widely used in big projects domestic and abroad!
special pipes
1.About the special pipe, we will make it by the customers requirement.
2.you can offer the sampie or drawing that we can refer to.
common round pipe:
The pipes are widely used for the auto/motorcycle/agricultural machine/railway project/low-high pressure boiler tubes/bearing tubes/oil and other high standards & demand processing & manufacturing industries.
** How long will it take to produce an order?
It is within 30days for the purchasing and production time with container order and 10days for the sample.
** What is your minimum order?
Usually 5 ton for each size, please contact us when you are trying to purchase less than container load
** What form of quotation do you offer?
FOB Tianjin, CIF and CNF Your destination
** What is your payment term?
Payment is 30% deposit, 70% before shipment .
** Does the sample for free or not?
The samples are free if they are common sizes, You need to pay for the freight .
** How do you guarantee the quality of the products?
All of our procedures are strictly operated under the ISO 9001:2008, and there are as many as 6 times of test during the production of each product to ensure the quality.
** How do you to package the product?
Wrapped with polywoven bags, we use steel belt to pack the outside, polywooden cases or wooden boxes for thin wall thickness can be offered if required
**How about the Third Party Inspection ?
We have been working with DNV,TUV,SGS,BV,CO,Lloyd's etc;
Any of your questions will be ansered within 24 hours! Welcome to inquiry!
Send Inquiry to This Supplier
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