Petroleum Cracking Pipe

Petroleum cracking pipe is a form of strip steel product with hollow section with seam joint around. Being an economic cross section steel material, petroleum cracking tube is extensively used in manufacturing structural and mechanical parts, such as petroleum drill rod, automobile transmission shaft, bicycle frame and steel scaffold used in construction. JST petroleum cracking pipe can also be utilized as seamless steel tube applicable in refinery, heat exchanger, pipeline and other applications.

  • Advantages of Petroleum Cracking Tube
  • This seamless pipe one more an inevitable material in conventional weaponry. We can use petroleum cracking pipes for making gun barrels.
  • We use petroleum cracking pipes to make ring-shaped work fragments. This can improves insulating material utilization rate, this is the manufacturing procedures, and save material and processing time.
  • Petroleum cracking tube could be used for producing rolled bearing ring and lifting jack kit.
  • Primarily based the shape of cross sectional area, it can be divided into round pipe and special pipe. On the premise of same perimeter, round petroleum cracking tube can convey more substance.

Delivery Status of Petroleum Cracking Pipe

  • 10# and 20#: hot-rolled finish rolling, clod-rolled normalizing
  • 15CrMo: hot-rolled finish rolling and tempering, clod-rolled normalizing and tempering
  • 1Cr2Mo: hot-rolled finish rolling and tempering, clod-rolled normalizing and tempering
  • 1Cr5Mo: annealing

Dimension Deviation of Petroleum Cracking Tube

Type Dimension Allowable Deviation
Hot-Rolled Pipe Outside Diameter ≤ 159 ± 1.00%
> 159 ± 1.25%
Wall Thickness ≤ 20 ± 12.5%
> 20 ± 10.0%
Cold-Drawn Pipe Outside Diameter ≤ 30 ± 0.20
30-50 ± 0.30
> 50 ± 0.8%
Wall Thickness ≤ 3 + 12%
- 10%
> 3 ± 10%

Mechanical Properties of Petroleum Cracking Pipe

Grade Tensile Strength (MPa) Yield Strength (MPa) Elongation (%) Impact Force (J) Brinell Hardness (HB) Delivery Status
20 410-550 ≥ 245 ≥ 21 ≥ 39 / Normalizing
15CrMo 440-640 ≥ 235 ≥ 21 ≥ 47 ≤ 170 Normalizing and Tempering
1Cr2Mo ≥ 390 ≥ 175 ≥ 22 ≥ 92 ≤ 179 Normalizing and Tempering
1Cr5Mo ≥ 390 ≥ 195 ≥ 22 ≥ 92 ≤ 187 Annealing

 

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