Heat Resistant Boiler Plate ASTM A387 Grade 21 Class 1

Heat Resistant Boiler Plate ASTM A387 Grade 21 Class 1

Widely used in petroleum, chemical industry, power plant, boiler, etc, and used to make the reactor, heat exchanger, separator, spherical tank, gas cylinder, liquid tank, nuclear power reactors island, boiler drum, liquefied petroleum gas cylinders, high pressure water pipes, turbine hydropower...

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Product Details

Widely used in petroleum, chemical industry, power plant, boiler, etc, and  used to make the reactor, heat exchanger, separator, spherical tank, gas cylinder, liquid tank, nuclear power reactors island, boiler drum, liquefied petroleum gas cylinders, high pressure water pipes, turbine hydropower station equipment and components such as spiral case.


These industries require a pressure vessel grade steel which works well in elevated temperatures and our material serves this purpose well. And with good corrosion and oxidation resistance, A387 Grade 21 Class 1 steel plates are a good option for sour gas environments too. 


Physical Properties

Metric

English

Comments

Density

7.80 g/cc

0.282 lb/in³

Typical of ASTM Steel


Mechanical Properties

Metric

English

Comments

Tensile Strength, Ultimate

415 - 585 MPa

60200 - 84800 psi


Tensile Strength, Yield

205 MPa

29700 psi


Elongation at Break

18 %

18 %

in 50mm

Modulus of Elasticity

200 GPa

29000 ksi

Typical Carbon Steel

Bulk Modulus

160 GPa

23200 ksi

Typical for Steel

Poissons Ratio

0.29

0.29

Typical Carbon Steel

Shear Modulus

80.0 GPa

11600 ksi

Typical for Steel


Electrical Properties

Metric

English

Comments

Electrical Resistivity

0.0000170 ohm-cm

0.0000170 ohm-cm

Typical Carbon Steel


Thermal Properties

Metric

English

Comments

CTE, linear

12.0 µm/m-°C

6.67 µin/in-°F

Typical Carbon Steel

Specific Heat Capacity

0.470 J/g-°C

0.112 BTU/lb-°F

Typical Carbon Steel

Thermal Conductivity

52.0 W/m-K

361 BTU-in/hr-ft²-°F

Typical Carbon Steel


Component Elements Properties

Metric

English

Comments

Carbon, C

0.15 %

0.15 %

may vary with plate thickness

Chromium, Cr

2.75 - 3.25 %

2.75 - 3.25 %


Iron, Fe

94.83 %

94.83 %

as balance

Manganese, Mn

0.30 - 0.60 %

0.30 - 0.60 %


Molybdenum, Mo

0.90 - 1.1 %

0.90 - 1.1 %


Phosphorous, P

0.035 %

0.035 %


Silicon, Si

0.50 %

0.50 %


Sulfur, S

0.035 %

0.035 %



If you're satisfied with our heat resistant boiler plate astm a387 grade 21 class 1, welcome to place orders with us. As one of the best Boiler Pressure Vessel Steel Plate manufacturers and suppliers in China, we have bulk hot sale products in stock at your choice. For detailed chemical composition and free sample, contact our factory now. Competitive price and good service are offered.
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