Executive Tube Standard : JIS G3462 Alloy Steel for Boiler and Heat Exchanger Tubes

Steel Grade: STBA12, STBA22,STBA24,etc

Product particular communication:

1) Size: OD > 6mm & THK > 0.89 mm ;

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

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

 
Commercial Information:

1) Delivery : Within 45 days ready at mill ;

2) Min Order : 5 Tons; 

3) Packing way : As per our export standard for shipment ;

4) Term of payment : 30% T/T within 3 days after signing the contract, balance 70% before shipment. Or 30%T/T +70% irrepealable L/C ;

5) Delivery Port : Shanghai Port ;

6) Offer Validity : 5-7 Days ;

7) Container : 20' or 40', etc ;

8) Manufacture methods : Cold Finished and Hot Finished.