After-sales Service: | Excellent |
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Warranty: | 3 Mounths |
Type: | Seamless |
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ASTM A179,ASME SA179 steel tubes covers minimum-wall-thickness, seamless cold-drawn low-carbon steel tubes for tubular heat exchangers, condensers, and similar heat transfer apparatus.
Material | Chemical Composition(%) | ||||
C | Si | Mn | P | S | |
ASTM A179 | 0.06-0.18 | ≤ 0.25 | 0.27-0.63 | ≤0.035 | ≤0.035 |
Mechanical properties |
|||
Tensile Strength (Mpa) |
Yield
Strength (Mpa) |
Elongation
(%) |
Hardness (HRB) |
≥325 | ≥180 | ≥35 |
≤72 |
OD (mm) | Wall Thickness(mm) | |||||||||||||
2 | 2.5 | 3 | 3.5 | 4 | 4.5 | 5 | 6 | 6.5-7 | 7.5-8 | 8.5-9 | 9.5-10 | 11 | 12 | |
Φ25-Φ28 | . | . | . | . | . | |||||||||
Φ32 | ||||||||||||||
Φ34-Φ36 | ||||||||||||||
Φ38 | ||||||||||||||
Φ40 | ||||||||||||||
Φ42 | ||||||||||||||
Φ45 | ||||||||||||||
Φ48-Φ60 | ||||||||||||||
Φ63.5 | ||||||||||||||
Φ68-Φ73 | ||||||||||||||
Φ76 |
Outside Diameter, in. [mm] |
Wall Thickness, % | |||||||
0.095[2.4] and Under | Over 0.095 to 0.150 [2.4 to 3.8], incl |
Over 0.150 to 0.180 [3.8 to 4.6], incl |
Over 0.180,[4.6] | |||||
Over | Under | Over | Under | Over | Under | Over | Under | |
Seamless, Cold-Finished Tubes | ||||||||
Over | Under | |||||||
1 1 ⁄ 2 [38.1] and under | 20 | 0 | ||||||
Over 1 1 ⁄ 2 [38.1] | 22 | 0 |
Outside Diameter,in. [mm] | Permissible Variations, in. [mm] | |
Over | Under | |
Under 1 [25.4] | 0.004 [0.1] | 0.004 [0.1] |
1 to 1 1 ⁄ 2 [25.4 to 38.1], incl | 0.006 [0.15] | 0.006 [0.15] |
Over 1 1 ⁄ 2 to 2 [38.1 to 50.8], excl | 0.008 [0.2] | 0.008 [0.2] |
2 to 2 1 ⁄ 2 [50.8 to 63.5], excl | 0.010 [0.25] | 0.010 [0.25] |
2 1 ⁄ 2 to 3 [63.5 to 76.2], excl | 0.012 [0.3] | 0.012 [0.3] |
3 to 4 [76.2 to 101.6], incl | 0.015 [0.38] | 0.015 [0.38] |
Over 4 to 7 1 ⁄ 2 [101.6 to 190.5], incl | 0.015 [0.38] | 0.025 [0.64] |
Over 7 1 ⁄ 2 to 9 [190.5 to 228.6], incl | 0.015 [0.38] | 0.045 [1.14] |
Method of Manufacture |
Outside Diameter, in. [mm] |
Cut Length,in. [mm] | |
Over | Under | ||
Seamless, cold-finished | Under 2 [50.8] | 1 ⁄ 8 [3] | 0 [0] |
2 [50.8] and over | 3 ⁄ 16 [5] | 0 [0] | |
2 [50.8] and over | 3 ⁄ 16 [5] | 0 [0] |
Q:Can I get samples before order ?
A:Yes, of course. Usually our samples are free,we can produce by your samples or technical drawings.
Q:Can I go to your factory to visit?
A:Of course, we welcome customers from all over the world to visit our factory.
Q:How can I get a quotation from you ?
A:You can leave us message, and we will reply every message in time. Or we may talk on line.
Q:What product information do I need to provide?
A:You need to provide the grade, width, thickness, coating and the number of tons you need to purchase.
Q:Does the product have quality inspection before loading?
A:Of course, all our products are strictly tested for quality before packaging, and unqualified products will be destroyed.we accept the third party inspection absolutely.
Q:How do we trust your company?
We specialise in exporting business for over 15 years as golden supplier, Headquarter locates in Liaocheng City, Shandong province, you are welcome to investigate in any ways, by all means