1. Brand

GR1, Gr2;

2. Standards

ASTM b337338;

3. Dimensions and specifications

3.1 welding outer diameter:

16mm/19mm/25mm，27mm/31mm33mm/38mm/50mm/63mm;

Thickness:

0.5mm-0.6mm-0.8mm-1.0mm-1.25mm

-1.5mm-2.0mm-2.5mm-3.0mm-3.5mm-4.0mm-4.5mm；

3.2 cold rolling outer diameter:

10-15mm﹥ 15-20mm

﹥ 20-30mm﹥ 30-40mm﹥ 40-50mm﹥50-

60mm﹥ 60-80mm；

Thickness:

0.5mm-0.6mm-0.8mm-1.0mm-1.25mm

-1.5mm-2.0mm-2.5mm-3.0mm-3.5mm-4.0mm-

4.5mm;

3.3 rolling outer diameter:

6-10mm﹣ 10-15mm﹣

15-20mm﹣ 20-25mm﹣ 25-30mm；

Thickness:

0.5mm-0.6mm-0.8mm-1.0mm-1.25mm

-1.5mm-2.0mm-2.5mm-3.0mm-3.5mm-4.0mm-

4.5mm.

4. Application

Metallurgy, electronics, medical, chemical, petroleum, medicine, aerospace, etc.