Executive Tube Standard :  GB5310 - Standard Specification for Seamless High-Pressure  Boiler Tubes

Product particular communication:

1) Size: 6.35 - 127 mm (OD) x 0.89 - 15mm (WT) ;

2) Tight tolerance, Smooth surface, Uniform mechanical property(Mechanical Properties equilibrium) ;

3) Heat treatment: BK, BKS, GBK, NBK,Stress Relief, Normalizing, Spheroidize Anneal, Annealing, Bright Annealing, Normalized, Quenched and Tempered, Solution Annealing, etc ;

4) Continuous stenciling as required ;

5) Rust prevention treatment, such as: immersion oil, lacquer, passivation, phosphating,etc;

6) Plastic plugs or caps on both ends as required ;

7) Packing Type: Round , Square, Rectangle, Hexagon. Streamline, etc.

8) Relevant Test: Chemical Component Analysis,Mechanical Properties(Ultimate tensile strength,Yield strength,Elongation),Technics Properties(Flattening Test,Flaring Test,Bending Test,Hardness Test,Blow Test,etc), Exterior Size Inspection, Nondestructive Test,Hydrostatic Test;

9) Main Applications: Boiler and Heat Exchanger, Hydraulic and Petrochemical Purpose, etc.