ASME SA537 Class 1 and ASTM A537 Class 1

  • Class

ASME SA537 Class 1 and ASTM A537 Class 1

  • Large stocks of plates certified to ASME SA537 Class 1 and ASTM A537 Class 1 are held in Brown McFarlane's warehouse and processing facilities.
  • We are also world-leading stockists and processors of other ASME and ASTM carbon steel pressure vessel plates
  • Up to 100mm (4 inches) thick

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Properties

ElementThicknessComposition (%)Note
Carbon (max)   0.24 A, B
Manganese 40 mm and under 0.70 - 1.35 A, C
  40 mm and under 0.64 - 1.46 B, C
  Over 40 mm 1.00 - 1.60 A, C
  Over 40 mm 0.92 - 1.72 B, C
Phosphorus (max)   0.035 A, B
Sulphur (max)   0.035 A, B
Silicon   0.15 - 0.50 A
    0.13 - 0.55 B
Copper (max)   0.35 A
    0.38 B
Nickel (max)   0.25 A, C
    0.28 B, C
Chromium (max)   0.25 A
    0.29 B
Molybdenum (max)   0.08 A
    0.09 B

Notes: A - heat analysis, B - product analysis, C - Manganese may exceed 1.35% on heat analysis, up to a maximum of 1.60%, and Nickel may exceed 0.25% on heat analysis, up to a maximum of 0.50%, provided the heat analysis carbon equivalent (long formula) does not exceed 0.57%. When this option is exercised, the Manganese and Nickel contents on product analysis shall not exceed the heat analysis content by more than 0.12% and 0.03% respectively.

Mechanical

Mechanical PropertyValue
Tensile Strength, MPa (ksi) 485 - 620 (70 - 90)
Yield Strength, min MPa (ksi) 345(50)
Elongation min, % 200 mm (8 in) 18
Elongation min, % 50 mm (2 in) 22

Note: The above values are applicable to plates 65 mm and under. Values for thicker plates are available from our sales and technical teams.