Carbon steel and alloy steel thick wall or ultra thick wall seamless tube with micro ID

1, Overview

Thick wall or ultra thick wall seamless tube with micro ID is a small caliber non-standard tube. It is generally made by finishing rolling, fine drawing or other special processes, with distinctive features of high bearing capacity and high strength, suitable for gas transmission, oil transmission or other special purposes which usually have high internal pressure and high strength.

2, Materials

(1) Carbon steel

SAE 1010

SAE 1020

SAE 1045

St37.4

St35（E235）

St45（E255）

St52（E355）

S355J2

(2) Alloy steel

27SiMn

40Cr

15CrMo

35CrMo

SAE 4140

SAE 4130

3, Sizes

OD: 3.0~50.0 mm

ID: 0.3-5.0 mm

4, Conditions

CD

CR

Annealed

Polished

5, Applications

(1) Hydraulic power systems, such as high pressure oil lines for heavy trucks

(2) Pneumatic power system

(3) High pressure fuel injection tubing for diesel engine and fuel injection pump tests

(4) High pressure pipes for automobiles

(5) The strength of pipes is very demanding in automobile manufacturing. Micro ID thick wall seamless tubes are often used in automobile exhaust system, intake system, brake tubing, joints, conveying cooling system, ignition system, fuel injection system, air conditioning system, sensor probe, pressure pipeline, high pressure oil rail pipeline, etc. Its working pressure can reach up to 300Mpa, and it can improve engine fuel efficiency.

(6) Automobile and motorcycle accessories

(7) Precision machinery

(8) Other fields which have high requirements on precision, finish, cleanliness, pressure resistance and mechanical properties of tubes.

6, Characteristics

Ultra thick wall

High accuracy

Good roughness

High pressure resistance

Good properties