ASTM A179 Seamless Steel Pipe For Boiler Round Shape
ASTM A179 Seamless Steel Pipe for Boiler
Boiler pipe refers to the steel with openings at both ends and hollow section, and its length
is larger than that of the surrounding. According to the production method, it can be divided
into seamless steel pipe and welded steel pipe. The specification of steel pipe is expressed
by overall dimension (such as outer diameter or side length) and wall thickness.Its size range
is very wide, from capillary with small diameter to large-diameter pipe with diameter of several
meters. Steel pipes can be used for pipelines, thermal equipment, machinery industry,petroleum
geological exploration, containers, chemical industry and special purposes.
| Origin | ZHEJIANG CHINA |
| Brand | TORICH |
| Company | Torich International Limited |
| Material | Carton Steel,10#, 20#, 45#, ST37 ect |
| Certificated | ISO9001 |
| Technology | Hot Rolled/Cold Drawn |
| Tolerance | Control with in the standard, OD:+/-1%, WT:+/-1% |
| OD | 5-420mm |
| WT | 0.5-50mm |
| Length | 6-12m |
Steel Grade and Chemical Compositions:
| C | 0.06-0.18 |
| Mn | 0.27-0.63 |
| P | ≤0.035 |
| S | ≤0.035 |
Mechanical Properties
| Tensile Strength | min ksi(Mpa) 47(325) |
| Yield Point | min ksi(Mpa) 26(180) |
| Elongation | ≥35% |
| Hardness | ≤72HRB |
Production process
Hot rolling (extrusion seamless steel pipe): round billet → heating → perforation
→ three-roll cross-rolling, continuous rolling or extrusion → pipe removal → sizing (or reducing
diameter) → cooling → straightening → hydrostatic test (or Flaw detection) → mark → warehousing
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