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ASTM A53 Gr B seamless carbon steel pipes & tubes
Scope: Pipe ordered under this specification is intended for mechanical and pressure applications and is also acceptable for ordinary uses in steam, water, gas and air lines.
Size Range: Covers tube OD8-80(0.314-3.14INCH), with nominal wall thickness: 1-12 mm
Chemical Composition& Mechanical Properties(Type S-Seamless Pipe)
| Grade | C ≤ |
M ≤ |
P ≤ |
S ≤ |
Cu" ≥ |
Ni "≤ |
Cr "≤ |
Mo" ≤ |
V" ≤ |
A |
0.25 |
0.95 |
0.05 |
0.045 |
0.40 |
0.40 |
0.40 |
0.15 |
0.08 |
B |
0.30 |
1.20 |
0.05 |
0.045 |
0.40 |
0.40 |
0.40 |
0.15 |
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 |
Dimensional Tolerances:
| Pipe Type | Pipe Sizes |
Tolerances |
||
Cold Drawn |
OD |
≤48.3mm |
±0.40mm |
|
WT |
≥60.3mm |
±1%mm |
||
Product Marking:
Each length of pipe shall be legibly marked to show the following: Manufacturer's name, specification number(A53),Size,Grade(B), Type(S).
Packing:Plastic plugs in both ends, Hexagonal bundles of max. 2,000kg with several steel strips, Wrapped in sackcloth with several steel strips
1. 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.
2. What is your minimum order?
Usually 5 ton for each size
3. What form of quotation do you offer?
FOB Tianjin, CIF and CNF Your destination
4. What is your payment term?
Payment is 30% deposit, 70% before shipment
5. Does the sample for free or not?
The samples are free if they are common sizes, You need to pay for the freight .
6. 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.
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