ASTM A179/ASME SA179 SEAMLESS U TUBE COLD DRAWN CARBON STEEL FOR BOILER HEAT EXCHANGER
ASTM A179 Steel Pipes Application:
A179 seamless steel pipe is widely used in industries such as petroleum, chemical, medical, food, light industry, machinery, instrument, include industrial pipeline and mechanical structure parts, etc.
Standard:ASTM A179
Delivery time : Promptly ( Stock) or 10-40 days (Production) Stock : some are Available MTC: Available
Main ASTM A179 (ASME SA179) cold drawn steel tube
This is an effective way of metal corrosion, the use of the main features are the following:
1. ASTM A179 cold drawn seamless pipe manufacturers with thick dense dense zinc layer covered in the cold drawn seamless tube surface, it can avoid cold drawn seamless tube matrix and any contact with the corrosion solution to protect the steel matrix from corrosion. In the general atmosphere, the surface of the zinc layer to form a layer of thin and dense zinc oxide surface, it is difficult to dissolve in water, so the steel matrix plays a protective role. If zinc oxide and other components of the atmosphere produce insoluble zinc salt, the anti-corrosion effect is more desirable.
2. With iron - zinc alloy layer, combined with dense, and with the unique anti-corrosion in the marine atmosphere and atmospheric atmosphere.
3. ASTM A179 cold drawn seamless pipe with a strong wear resistance due to the combination of solid, zinc - iron miscible.
4. Since zinc has good ductility, its alloy layer and steel base attached to a solid, so hot-rolled parts can be cold, rolling, drawing, bending and other molding without damage to the coating.
5. Hot-dip galvanized structural steel pipe, the equivalent of an annealing treatment, can effectively improve the mechanical properties of steel matrix to eliminate the steel forming welding stress, is conducive to the steel structure for turning.
6. The surface of cold drawn seamless pipe after hot galvanized is bright and beautiful.
7. Pure zinc layer is the most hot galvanized layer of galvanized layer, its nature is basically close to pure zinc, with ductility, so it is full of flexibility.
Outside Diameter & Tolerance
| Outside Diameter, mm | Tolerance, mm |
| 3.2≤OD＜25.4 | ±0.10 |
| 25.4≤OD≤38.1 | ±0.15 |
| 38.1＜OD＜50.8 | ±0.20 |
| 50.8≤OD＜63.5 | ±0.25 |
| 63.5≤OD＜76.2 | ±0.30 |
| 76.2 | ±0.38 |
Wall thickness & Tolerance
| Outside Diamter, mm | Tolerance, % |
| 3.2≤OD＜38.1 | +20/-0 |
| 38.1≤OD≤76.2 | +22/-0 |
Length: 5800mm; 6000mm; 6096mm; 7315mm; 11800mm; ...
Max length: 27000mm, also U bending can be offered...
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ASTM A179/ASME SA179 SEAMLESS U TUBE COLD DRAWN CARBON STEEL FOR BOILER HEAT EXCHANGER Images
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