Okajima Pipe is Challenging itself in New Technologies, Setting its Eyes on the Broader World.

Business Details

  1. Okajima Pipe Co., Ltd.
  2. Business Details
  3. Products
  4. Types and Applications (F/H/G/C/A/N Series)

Types and Applications

F Series (Low Carbon Steel Tube, Ultra Low Carbon Steel Tube)

Product symbol Finish category Main applications
F290C

Steel tube with tensile strength of 290N/mm2 or higher by the tube alone.

  • Car seat parts,
  • automobile exterior parts,
  • pipes for automobiles (fuel, coolant, lubricant),
  • automobile exhaust parts,
  • draw-out material tubes,
  • gas appliance piping,
  • lance pipes,
  • copper furniture,
  • building materials,
  • bicycle parts,
  • sheathed heaters,
  • roller conveyors,
  • electrical and mechanical piping
F290CA
F290HA

Steel tube with tensile strength of 290N/mm2 or higher and around 40% elongation after annealing that is suitable for extremely harsh machining.

F290CP
F290HP

Steel tube with a certain degree of strength and with excellent dimensional accuracy after cold drawing.

F290CAP
F290HAP

Steel tube with exceptional workability by improving dimensional accuracy through cold drawing and annealing.

F290C S

Steel tube suitable for high precision machining by tube making with a special method utilizing ultra low carbon steel.

H Series (High Tensile Strength Steel Tube)

Product symbol Finish category Main applications
H440C

Steel tube with tensile strength of 440N/mm2 or higher by the tube alone or after cold drawing.

  • Car seat parts,
  • metal tools,
  • copper furniture,
  • automobile tools
H490C(P)
H490H(P)

Steel tube with tensile strength of 490N/mm2 or higher by the tube alone or after cold drawing.

H540C(P)
H540H(P)

Steel tube with tensile strength of 540N/mm2 or higher by the tube alone or after cold drawing.

H590C(P)
H590H(P)

Steel tube with tensile strength of 590N/mm2 or higher by the tube alone or after cold drawing.

H640C(P)
H640H(P)

Steel tube with tensile strength of 640N/mm2 or higher by the tube alone or after cold drawing.

H690H

Steel tube with tensile strength of 690N/mm2 or higher by the tube alone or after cold drawing.

G Series (Galvanized Steel Tube)

Product symbol Finish category Main applications
G6060ZC

Use a dissolved galvanized steel strip to employ it for an unpainted steel tube. Steel tube with tensile strength of 290N/mm2 or higher by the tube alone.

  • Automobile exterior parts,
  • pipes for automobiles (fuel),
  • pipes for gas equipment,
  • roller conveyors,
  • building materials,
  • agricultural materials
G6060AZC
G9090AZC

Use a dissolved galvanized steel strip to employ it for a painted steel strip. Steel tube with tensile strength of 290N/mm2 or higher by the tube alone.

G2020EZC
G3030EZC

Use an electrogalvanized steel strip. A steel tube with tensile strength of 290N/mm2 or higher by the tube alone

G3030LZC

Use an electrogalvanized steel strip. A steel tube with tensile strength of 290N/mm2 or higher by the tube alone

C Series (Copper Plated Steel Tube)

Product symbol Finish category Main applications
C0105C

Steel tube with tensile strength of 290N/mm2 or higher by the tube alone.

  • Pipes for automobiles (fuel, coolant),
  • pipes for gas equipment,
  • sheathed heaters
C0105CP
C0305CP

Steel tube with a certain degree of strength and with excellent dimensional accuracy after cold drawing.

C0105CA
C0305CP

Steel tube with a tensile strength of 290N/mm2 or higher and an elongation of around 40% after annealing.

C0105CAP
C0305CAP

Steel tube with exceptional workability by improving dimensional accuracy through cold drawing and annealing.

C0305CS

Steel tube suitable for high precision machining by tube making with a special method utilizing ultra low carbon steel.

A Series (Aluminum Coated Steel Tube)

Product symbol Finish category Main applications
A40C

The deposition amount of aluminum plating applied on the outer and inner surfaces is 40g/m2 for the total of the two surfaces.

  • Automobile exhaust parts
A60C

The deposition amount of aluminum plating applied on the outer and inner surfaces is 60g/m2 for the total of the two surfaces.

A80C

The deposition amount of aluminum plating applied on the outer and inner surfaces is 80g/m2 for the total of the two surfaces.

N Series (Nickel Plated Steel Tube)

Product symbol Finish category Main applications
N0002C

Use a nickel plated steel strip. Steel tube with tensile strength of 290N/mm2 or higher by the tube alone

  • Pipes for automobiles (fuel, coolant, lubricant),
  • pipes for motorcycles (fuel),
  • various mechanical piping
N0002CP
N0105CP

Steel tube with a certain degree of strength and with excellent dimensional accuracy after cold drawing.

N0002CA
N0105CA

Steel tube with a tensile strength of 290N/mm2 or higher and an elongation of around 40% after annealing.

N0002CAP
N0105CAP

Steel tube with exceptional workability by improving dimensional accuracy through cold drawing and annealing.

N0105CS

Steel tube suitable for high precision machining by tube making with a special method utilizing ultra low carbon steel.