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SHANDONG HUITONG STEEL CO.,LTD
| Payment Type: | L/C,T/T,D/P,Money Gram,Western Union |
| Incoterm: | FOB,CFR,CIF,EXW |
| Transportation: | Land,Ocean,Express |
| Port: | Qingdao,Shanghai,Tianjin |
Model No.: ASTM A179
Brand: H-TONG
Standard: Bs, Gb, Astm, Jis, Din, Api
Material: St35-St52, Q195-Q345, 10#-45#, 16mn
Section Shape: Round
Place Of Origin: China
Application: Structure Pipe, Fluid Pipe, Boiler Pipe, Hydraulic Pipe
Production Process: Hot Rolled
Certification: Bsi, Ce, Api
Special Tube: Api Pipe, Emt Pipe
Whether Alloy: Non-Alloy
Category: Seamless Steel Pipe
Processing Service: Bending, Welding, Decoiling, Punching, Cutting
Section Shape: Round
Origin: China
HS Code: 730419
Outer Diameter: 25-325mm
Wall Thickness: 1-80mm
WT Tolerance: +/- 10%
Shipment: By Container or Bulk Vessel
Surface Treatment: Black Painting or According to Requirement
Length: 5-11.8M
Tolerance: ±3%, ±1%
| Selling Units | : | Ton |
| Package Type | : | Anti-Water Paper Strapped with Three Steel Strips or Standard Export Seaworthy Package or According to Customer Requirements |
| Picture Example | : |
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ASTM A179/ASME SA179 Standard covers minimum-wall thickness, seamless low-carbon Cold Drawn Steel Tube for tubular heat exchangers, condensers, and similar heat transfer apparatus.
ASTM A179/ASME SA179 Tubes shall be made by the seamless process and shall be cold drawn. ASTM A179/ASME SA179 Tubes shall be heat treated after the final cold drawn pass at a temperature of 1200°F [650°C] or higher.
ASTM A179/ASME SA179 Tubes should do Product Analysis test, Hardness test, Mechanical Test, Flattening Test, Flaring Test, Hydrostatic Test or NDT Test if agreed by Client.
ASTM A179/ASME SA179 Tube Chemical Compositions
| Chemical Components (%) | |||||||
| C | Si | Mn | P | S | Mo | Cr | V |
| 0.06-0.18 | / | 0.27-0.63 | ≤0.035 | ≤0.035 | / | / | / |
ASTM A179/ASME SA179 Tube Mechanical Properties
| 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 |
ASTM A179/ASME SA179 Tube Outside Diameter Tolerance
| 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) |
ASTM A179/ASME SA179 Tube Cut Length Tolerance
| Cold-Finished Seamless Steel Tube | ||
| 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. | ||
Our factory takes more than 5 suare kilometers, 15 production lines can make different sizes cold rolled or cold drawn Seamless Pipe.
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