JIANGSU HAOHUA INDUSTRY GROUP

Mirror polish round stainless steel cooling coil tube

1) Stainless Steel Pipe Measurement Range: outer diameter: 6-19mm; wall thickness: 0.41-1.5mm; the measurement tolerance as per ASTM A269 or ASTM A249

2) The outer diameter of the coil pipe>500mm; the inner diameter of the coil pipe<1000mm

3) The height of the coil pipe: 200mm-400mm

4) Max.length of each coil:<1000M min.length of each coil:>6m

5) General delivery length:200m-800m

6) Physical properties of bright-annealed coil pipe:

A. ratio of elongation no less than 55%

B. surface hardness no greater 170HV

C. tensile strength no less than 550N/MM²

D. yield strength no less than 220N/MM²

E. bending angle>180⁰;

min.bending radius<1.5*pipe diameter

7) Physical properties of general coil pipe (without bright annealing):

A. ratio of elongation no less than 35%

B. surface hardness greater than 180HV

C. tensile strength>600N/MM²

D. yield strength>280N/MM²

E. bending angle>90⁰; bending radius>2*pipe diameter

8) Pressure resistance property: take 8*0.5*c coil pipe as an example, the work pressure to be borne by the inner wall is no less than 60BAR