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Mechanical Steel Pipe

Square:From 0.500” to 2.500”
Rectangle:From 1.000” x 0.500” to 4.000” x 2.000”
Round:From 0.125” OD to 26.000” OD
Custom Shapes (Must be large quantities)

Classification :

Seamless Steel Pipe

+8613787191317

info@northsteelgroup.com

E-mail

Specification

◎Mechanical Tubing Sizes

Square	From 0.500” to 2.500”
Rectangle	From 1.000” x 0.500” to 4.000” x 2.000”
Round	From 0.125” OD to 26.000” OD
Custom Shapes (Must be large quantities)

◎Hydraulic Steel Tubing

Seamless (SAE J-524)
Welded (SAE J-525)
Main material:
Lining: stainless steel, duplex steel, nickel base alloys, titanium, copper and other corrosion resistant alloys.
Product Features:
Using patented technology to make two kinds of interference materials, to ensure the working state of the medium in the corrosive environment, to meet the pressure requirements, greatly reducing the cost of materials, and at the same time has a great binding force

Chemical composition

◎Chemical Composition

Yield (PSI)	Tensile (PSI)	Hardness (Max HRB)	Elongation (in 2" Min)
25,000	45,000	65	35%

Process

Seamless hydraulic tubing is produced as a seamless tube by rolling and piercing bar stock. It then gets multiple cold-drawing reductions before a final cold draw guarantees tight dimensional tolerances and excellent surface finish. After final sizing of the tube through cold drawing it undergoes intermediate annealing and a dead-soft annealing process to meet SAE J524 requirements.

Welded hydraulic tubing is made from flat-rolled steel shaped into a tubular form where the edges are joined and fused together by electric-resistance welding. After forming and welding, the tubing is then normalized and subjected to a cold-drawing operation. Following cold working, the tubing is then normalized via an atmospherically controlled method to produce a finished product that will meet requirement of SAE J525.

Tests

◎Test Requirements of Mechanical Steel Tube
Eddy Current Test
Ultrasonic Testing
Hydrostatic Tests
Metalography Test
MP / DP / RF ECT Testing
BHN Hardness & Rockwell Testers
Visual Inspection, TPP and CVN Impact Testing