| Customization: | Available |
|---|---|
| After-sales Service: | 12 Years |
| Warranty: | 12 Years |
|
Still deciding? Get samples of US$ 1/Piece
Request Sample
|
Suppliers with verified business licenses
Audited Supplier Audited by an independent third-party inspection agency
| Chemical Components (%) | |||||||
| C | Si | Mn | P | S | Mo | Cr | V |
| 0.06-0.18 | / | 0.27-0.63 | ≤0.035 | ≤0.035 | / | / | / |
| Mechanical Properties | |||
| Tensile Strength (Mpa) |
Yield Strength (Mpa) |
Elongation (%) |
Hardness (HRB) |
| ≥325 | ≥180 | ≥35 | ≤72 |
ASTM A179/ASME SA179 Tube Wall Thickness Tolerance
| Seamless, Cold-Finished Tubes | ||
| Outside Diameter In. (mm) |
Wall thickness Tolerance % | |
| Over (+) | Under (-) | |
| 1 ½ (38.1) and under |
20 | 0 |
| Over 1½ (38.1) | 22 | 0 |
| Cold-Finished Seamless Tubes | ||
| 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 ½ (25.4 to 38.1), Incl | 0.006 (0.15) | 0.006 (0.15) |
| Over 11⁄2 to 2 [38.1 to 50.8], Excl | 0.008 (0.2) | 0.008 (0.2) |
| 2 to 21⁄2 [50.8 to 63.5], Excl | 0.010 (0.25) | 0.010 (0.25) |
| 21⁄2 to 3 [63.5 to 76.2], Excl | 0.012 (0.3) | 0.012 (0.3) |
| Cold-Finished Seamless Tubes | ||
| Outside Diameter, In.(mm) |
Cut Length ,in.(mm) | |
| Over(+) | Under(-) | |
| All Sizes | 3⁄16 [5] | 0 [0] |
| Under 2 [50.8] | 1⁄8 [3] | 0 [0] |
| 2 [50.8] and over | 3⁄16 [5] | 0 [0] |
| Under 2 [50.8] | 1⁄8 [3] | 0 [0] |
| 2 [50.8] and over | 3⁄16 [5] | 0 [0] |
| These permissible variations in length apply to tubes before bending. They apply to cut lengths up to and including 24 ft [7.3 m]. For lengths greater than 24 ft [7.3 m], the above over-tolerances shall be increased by 1⁄8 in. [3 mm] for each 10 ft [3 m] or fraction thereof over 24 ft or 1⁄2 in. [13 mm], whichever is the lesser. | ||
We can produce different sizes, thicknesses, widths and materials according to your requirements
| OD (mm) | Thickness (mm) | OD (mm) | Thickness (mm) | OD (mm) | Thickness (mm) |
| Φ13.1 | 1.5-3 | Φ35.9 | 1.5-7 | Φ49.2 | 1.5-10 |
| Φ19.25 | 1.5-5 | Φ36.6 | 1.5-7 | Φ49.5 | 1.5-10 |
| Φ22 | 1.5-5 | Φ38 | 1.5-8 | Φ52.3 | 1.5-10 |
| Φ22.2 | 1.5-5 | Φ38.4 | 1.5-8 | Φ53.8 | 1.5-10 |
| Φ25 | 1.5-6 | Φ40 | 1.5-10 | Φ57 | 1.5-10 |
| Φ26.3 | 1.5-6 | Φ40.2 | 1.5-10 | Φ59 | 1.5-10 |
| Φ27 | 1.5-6 | Φ40.9 | 1.5-10 | Φ60 | 1.5-11 |
| Φ28 | 1.5-6 | Φ41.3 | 1.5-10 | Φ62.5 | 1.5-11 |
| Φ30 | 1.5-6 | Φ41.6 | 1.5-10 | Φ74 | 1.5-11 |
| Φ30.25 | 1.5-6 | Φ42 | 1.5-10 | Φ75 | 1.5-11 |
| Φ30.9 | 1.5-6 | Φ43 | 1.5-10 | Φ76 | 1.5-11 |
| Φ31 | 1.5-7 | Φ44.5 | 1.5-10 | Φ89 | 1.5-15 |
| Φ32 | 1.5-7 | Φ45.8 | 1.5-10 | Φ93 | 1.5-15 |
| Φ35 | 1.5-7 | Φ46.1 | 1.5-10 | Φ19-Φ121 | 1.5-15 |
| Φ35.5 | 1.5-7 | Φ47.8 | 1.5-10 |
Size tolerance
| OD | Standard tolerance | Special tolerance | |||
| Outer Diameter | GB/T3639 | DIN2391 | EN10305 | O D | thickness |
| 4mm-20mm | ±0.10 mm | ±0.08 mm | ±0.08 mm | ±0.05mm | ±0.05mm |
| 20mm-30mm | ±0.10 mm | ±0.08 mm | ±0.08 mm | ±0.08 mm | ±0.08 mm |
| 31mm-40mm | ±0.15 mm | ±0.15 mm | ±0.15 mm | ±0.10 mm | ±0.08 mm |
| 41mm-60mm | ±0.20 mm | ±0.20 mm | ±0.20 mm | ±0.15 mm | ±0.15 mm |
| 61mm-80mm | ±0.30 mm | ±0.30 mm | ±0.30 mm | ±0.20 mm | ±0.20 mm |
| 81mm-120mm | ±0.45 mm | ±0.40 mm | ±0.40 mm | ±0.30 mm | ±0.30 mm |
1) Packaging: 3 layers of packing. Inside is craft paper, Middle is water plastic film and outside GI steel sheet to be covered by steel strips with lock, with inner coil sleeve or as customers' requirements.
Q1:Can you send samples?
){kind=link}