Product Name: DIN1629 / Seamless Circular Tubes of Non Alloy Steels with Special Quality Requirements 

Steel Grade: ST30Si;ST35(1010);ST45(1020);ST52(16Mn);ST34-2;ST37-2(1020);ST44-2;ST52-3;ST37(Q235B,1020);37.4;ST44;ST35.8;ST45.8;17Mn4(16MnR);19Mn5;15Mo3(16Mo3,16Mo-P1);25CrMo4;Cr5Mo(P5),13CrMo44(15CrMo,T11,T12);13CrMo910(Cr2Mo),etc 

 
Specification:
1) Size: OD > 6.35 mm & Thk > 0.50 mm;

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) Packaging: Hexagonal bundles of max. 1,500kg with several steel strips, Wrapped in waterproof paper, PVC sleeve,and sackcloth with several steel strips or packed in heavy tri-wall boxes, wooden boxes, wooden slats as requires;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: Automobile and Bearing Industry, Hydraulic and Petrochemical Purpose, etc.
  

  
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