grp pipe api a252 grade 3 ssaw astm a106 spiral welding steel pipes

Outer Diameter(mm)

Wall Thickness(mm)

Length(m)

219

6~8

6 ~ 12

273

6~10

6 ~ 12

325

6~14

6 ~ 12

377

6~14

6 ~ 12

426

6~16

6 ~ 12

478

6~16

6 ~ 12

508

6~18

6 ~ 12

529

6~18

6 ~ 12

610

6~19

6 ~ 12

630

6~19

6 ~ 12

720

6~22

6 ~ 12

820

7~22

6 ~ 12

920

8~23

6 ~ 12

1016

8~23

6 ~ 12

1020

8~23

6 ~ 12

1220

8~23

6 ~ 12

1420

10~23

6 ~ 12

1620

10~23

6 ~ 12

1820

10~25.4

6 ~ 12

2020

10~25.4

6 ~ 12

2200

10~25.4

6 ~ 12

2420

10~25.4

6 ~ 12

2620

10~25.4

6 ~ 12

Compare

Performance

Powder expory

Liquid epoxy

Raw material

Solvent-free, food grade powder, green

Diluent, curing agent, irritating odor

Process

Hot melting spraying, make an action with the steel pipes in 250 degree forming a alloy layer with steel and plastic

Cold spray by spray gun, need time for curing  

Adhesive force

Mechanical chimeric, chemical bonds, diffusion, electrostatic binding force

Mechanical chimeric

Thickness / each time

300-500μm

30-80μm

Friction coefficient

0.0086

0.012

Time for using in theory

50 years

3 - 5 years