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SA645 steel plate
SA645 steel plate

ASME SA645 in the standard SA-645/SA-645M is a kind of Ni alloy steel plates material used to fabric high temperature pressure vessels, the composition of Ni is 5%. ASME SA645 need to be done the special heat-treatment to meet the property requirement in the standard ASME SA-645/SA-645M.

Standard: ASME SA-645/SA-645M

Dimension range :3mm -260mm x 1000mm-4000mm x 1000mm-18000mm

ASME SA645 steel plate/sheet Mechanical Properties :

Mechanical Properties

Grade

Tensile Strength
ksi (Mpa)

Yield Strength
ksi (Mpa)

Elongation in 2 in , 50 mm,min,(%)

SA645

95-115
(655-795)

65
(450)

20

ASME SA645 Ni alloy steel plate Chemical composition :

Chemical composition

Grade

 

C ≤

Mn

P ≤

S ≤

Si

Ni

Mo

Alt

N ≤

SA645

Heat analyse

0.13

0.30~0.60

0.025

0.025

0.20~0.40

4.75~5.25

0.20~0.35

0.02~0.12

0.020

Product analyse

0.15

0.25~0.66

0.035

0.035

0.18~0.45

4.65~5.35

0.17~0.38

0.01~0.16

0.025

Delivery Status : Annealing, Normalizing + tempering

ASME SA645 pressure vessel steel application :
SA645 steel plate is mainly used in oil, chemical, power station, boiler and other industries, for the production reactor, heat exchanger, separator, spherical tank, oil tank, liquefied gas tank, nuclear reactor pressure shell, boiler drum, Liquefied petroleum gas cylinders, high-pressure water pipes, water turbines and other equipment and components.

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