standard

ASTM A199

Steel grade

T4, T5, T9, T11, T21, T22, T91

Outside diameter

20mm-200mm

Thickness

0.1mm-20mm

Length

3m-8m

End protection

Plastic caps

Outside coating

Black painting, anti-corrosion oil, galvanized or as per required by customers

Packing

wooden boxes, plastic bags or according to different customers’ requests

Inspection and test

UT, ET, HT, RT, etc. and others according to the standard, or as the requests of the customers

Delivery condition

Annealed, Normalized, Normalized and tempered

Steel grade

C

Mn

P

S

Si

Cr

Mo

ASTM A199/T4

≤0.15

0.30-0.60

≤0.03

≤0.03

0.50-1.00

2.15-2.85

0.44-0.65

ASTM A199/T5

0.50-0.15

0.30-0.60

≤0.03

≤0.03

≤0.50

4.00-6.00

0.45-0.65

ASTM A199/T7

≤0.15

0.30-0.60

≤0.03

≤0.03

0.50-1.00

6.00-8.00

0.45-0.65

ASTM A199/T9

≤0.15

0.30-0.60

≤0.03

≤0.03

0.25-1.00

8.00-10.0

0.90-1.10

ASTM A199/T11

0.50-0.15

0.30-0.60

≤0.03

≤0.03

0.50-1.00

1.00-1.50

0.44-0.65

ASTM A199/T22

0.50-0.15

0.30-0.60

≤0.03

≤0.03

≤0.50

1.90-2.60

0.87-1.13

Steel grade

Tensile Strength(Mpa)

Yield Strength(Mpa)

Elongation(%)

ASTM A199/T4

≥415

≥170

30/22

ASTM A199/T5

≥415

≥170

30/22

ASTM A199/T7

≥415

≥170

30/22

ASTM A199/T9

≥415

≥170

30/22

ASTM A199/T11

≥415

≥170

30/22

ASTM A199/T22

≥415

≥170

30/22