High Pressure OD 5mm Seamless Steel Tube Astm A523 Gra Grb Erw For Cable Circuits

Product Description

High Pressure ASTM A523 GrA GrB Seamless ERW Steel Pipes for Cable Circuits Usage

Introduction:

Ordering information:

1. Quantity(feet, meters, number of lengths)

2. Name of material (steel pipe)

3. Type S or  E (Seamless or electric resistance welded)

4. Grade

5. Size (diameter and nominal wall thickness or pounds per foot)

6. End finsh

7. Length

End finish:

When pipe ends are to be flared for butt-welding with the use of baking rings, the ends shall be beleved to an angle of 30 +5,-0° measured from a line drawn perpendicular tothe axis of the pipe, and with a root face of  1.6±0.8 mm. The pipe ends shall have burrs removed from both the inside  and outside deges. 

When pipe ends are to be prepred for bell and spigot jointing, the ends shall be cut square with the axis of the pipe, the inside abd outside edges shall be smooth and free of burrs.

Product show:

100% of our steel tubes are dimensionally checked
100% of our steel tubes are visually checked to assure they have a perfect surface condition and no surface defects.
100% eddy current test and ultrosonic test to eliminate longitudinal and transversal defects.

QUALITY CONTROL:
1. Incoming Raw Material Inspection
2. Raw Material Segregation to avoid steel grade mix-up
3. Heating and Hammering End for Cold Drawing
4. Cold Drawing and Cold Rolling, on line inspection
5. Heat Treatment, +A, +SRA, +LC, +N, Q+T
6. Straightening-Cutting to specified length-Finished Measuring Inspection
7. Machanical Testing in own labs with Tensile Strength, Yield Strength, Elongation, Hardness, Impact, Mictrostruture etc
8. Packing and Stocking