ASTM A387 GR 5 CLASS 2 Steel Plate

ASTM A387 GR 5 CLASS 2 Steel Plate

A high quality chrome molybdenum alloy steel plate intended specifically for use in weldable carbon steel pressure vessels at elevated temperatures. Added molybdenum gives the material greater temperature tensile strength and the chromium provides improved corrosion resistance. Chromium &...

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Product Details

A high quality chrome molybdenum alloy steel plate intended specifically for use in weldable carbon steel pressure vessels at elevated temperatures. Added molybdenum gives the material greater temperature tensile strength and the chromium provides improved corrosion resistance.


Chromium & Molybdenum content (according to the ASTM specification):

Designation

Nominal Chromium Content (%)

Nominal Molybdenum Content (%)

A387 Grade 5

5.00%

0.50%


Tensile Requirements for Class 2 Plates:

Designation

Requirement

Grade 5

A387 Grade 5

Tensile strength, ksi [MPA]

75 to 100 [515 to 690]


Yield strength, min, ksi [MPa]/(0.2% offset)

45 [310]


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



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

18


Reduction of area, min %

45 (measured on round specimen)
40 (measured on flat specimen)

 

Chemical Requirements:

Elements

Carbon (C)

%

Heat Analysis:
Product Analysis:

0.15 max
0.15 max

Manganese (Mn)

%

Heat Analysis:
Product Analysis:

0.30 - 0.60
0.25 - 0.66

Phosphorus (P)

%

Heat Analysis:
Product Analysis:

0.035
0.035

Sulphur (S) (Max)

%

Heat Analysis:
Product Analysis:

0.030
0.030

Silicon (Si)

%

Heat Analysis:
Product Analysis:

0.50 max
0.55 max

Chromium (Cr)

%

Heat Analysis:
Product Analysis:

4.00 - 6.00
3.90 - 6.10

Molybdenum (Mo)

%

Heat Analysis:
Product Analysis:

0.45 - 0.65
0.40 - 0.70


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