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ASTM A204 Grade C steel vs A285 Grade C steel

ASTM A204 Grade C steel vs A285 Grade C steel

Posted:2021-06-02 15:18:17

A204 Grade C material is a molybdenum-alloy steel plate, intended particularly for welded boilers and other pressure vessels.
ASTM A285 Grade C steel is a kind of carbon steel plates of low- and intermediate-tensile strengths which may be made by killed, semi-killed, capped, or rimmed steel.

ASTM A204 Grade C steel chemical composition (%)


Material

C

Si

Mn

P

S

Mo

A204 Grade C

0.23-0.28

0.15-0.40

0.90 max.

0.025 max.

0.025 max.

0.45–0.60

A285 Grade C

0.28 max.

-

0.90 max

0.025 max.

0.025 max.

-

ASTM A204 Grade C steel mechanical properties


Item

A204 Grade C

Tensile strength, kis [MPa]

75-95 [515-655]

Yield strength, min, kis [MPa]

43 [295]

Elongation in 8 in. [200 mm], min, %

16

Elongation in 2 in. [50 mm], min, %

20

ASTM A285 Grade C steel mechanical properties


Material

Tensile strength ,MPa

Yield strength, MPa

Elongation in 8 in. [200 mm],A%

Elongation in 2 in. [50 mm], A%

A285 GrC

380-515

≥205

≥23

≥27

Katalor as a pressure vessel plates supplier, can supply carbon steel and A204 Grade C alloy steel for LNG tanks, pressure vessels, boilers and heat exchangers.

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