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DN of steel pipe
(mm)

Epoxy powder
(μm)

Adhesive Layer
(μm)

Minimum thickness of the coating(mm)

Common Level(G)

Strengthen Level(S)

DN≤100

≥120

≥170

1.8

2.5

100<DN≤250

2.0

2.7

250<DN<500

2.2

2.9

500≤DN<800

2.5

3.2

DN≥800

3.0

3.7

ASTM A53 /A106 Chemical Components and Machanical Property

Standard 

Steel Grade

Chemical Components

Machanical Property

C 

Mn

P

S

Cu

Ni

Cr

Mo

V

Tensile Strength (Mpa)

Yield Strength(Mpa)

Elongation (Mpa)

ASTM A53

A

≤0.25

≤0.95

≤0.05

≤0.045

≤0.40

≤0.40

≤0.40

≤0.15

≤0.08

≥330

≥205

≥29.5

B

≤0.30

≤1.20

≤0.05

≤0.045

≤0.40

≤0.40

≤0.40

≤0.15

≤0.08

≥415

≥240

≥29.5

Standard 

Steel Grade

Chemical Components

Machanical Property

C 

Si

Mn

P

S

Cu ,Ni

Cr

Mo

V

Tensile Strength (Mpa)

Yield Strength(Mpa)

Elongation (Mpa)

ASTM A106

B

≤0.30

≥0.10

0.29-1.06

≤0.035

≤0.035

≤0.40

≤0.40

≤0.15

≤0.08

≥415

≥240

≥30

C

≤0.35

≥0.10

0.29-1.06

≤0.035

≤0.035

≤0.40

≤0.40

≤0.15

≤0.08

≥485

≥275

≥30