After-sales Service: | Support |
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Warranty: | Support |
Type: | Seamless |
Technique: | Cold Drawn |
Material: | Carbon Steel |
Surface Treatment: | Black |
Samples: |
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Customization: |
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Standard | ASME SA192/SA179, ASTM A106, ASTM A53, ASTM A210, ASTM A519, API 5L Gr.B, DIN17175, DIN1629, DIN2391, DIN17440, DIN2448, EN10216-1 10216-2 10305-1, JISG3452-54, GB/T8162, GB/T8163, GB/T3639, DIN2391-2 and so on |
Grade | 20Cr, 40Cr, ST35, ST37.4(10#), ST45(20#), ST52(16Mn), ST55(35#), 45#(ASTM 1045, DIN45), Q345B, E215, E235, E355, sch10, sch20, A106, A179, A192, A210, T11, T22, T12, AISI 4130, SAE1010, SAE1020.etc |
Size | Outer Diameter: 21.3mm-660mm, According to customer requirements Wall Thickness: 0.5mm-20mm, According to customer requirements Length: 1-12m, According to customer requirements |
Section Shape | Round |
Technology | Cold Drawn |
Tolerance | Control with in the standard, OD: +/-1%, WT: +/-5% |
Surface Treatment | Black Painted, Galvanized, Natural, Anticorrosive 3PE coated, polyurethane foam Insulation |
Main Features | 1.Environmental protection: can effectively reduce environmental pollution. 2.Corrosion resistance: Strong anti-fouling, acid, corrosion, wear resistance, non-radioactive. 3.Surface cleanliness: The product surface is smooth and compact, not easy to be polluted by dust, and has good self-cleanliness. 4.Easy Maintenance: A slight loss is easy to repair, etc |
Processing Service | Welding, Punching, Cutting, Bending, Decoiling |
Payment Terms | T/T, D/A, D/P, L/C, Western Union, MoneyGram, According to customer requirements |
Delivery Time | Within 7 days, According to the quantity ordered by the customer. |
Packing | Standard Seaworthy Package, according to customer requirements |
Samples | Available |
Usage /Application | 1.Oil pipe line, Drill pipe, Hydraulic pipe, Gas pipe, Fluid pipe, 2.Boiler pipe, Conduit pipe, Scaffolding pipe pharmaceutical and ship building etc. |
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 |
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. |
Chemical Components (%) | |||||||
C | Si | Mn | P | S | Mo | Cr | V |
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 | ≤77 |
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. | ||
Hydrostatic Test Pressures | |
Outside Diameter of Tube, in. [mm] | Hydrostatic Test Pressure, psi [MPa] |
Under 1 [25.4] | 1000 [7] |
1 to 11⁄2 [25.4 to 38.1], excl | 1500 [10] |
11⁄2 to 2 [38.1 to 50.8], excl | 2000 [14] |
2 to 3 [50.8 to 76.2], excl | 2500 [17] |
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