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Low Tensile Strength Carbon Steel Pressure Vessel/Structural Plates
 

SA-285

Overview

Applications for low / intermediate tensile strength requirements. 285 is designed for low pressure heaters, treaters, tanks and other low pressure PVQ applications.

 Download SA-285 Chemical and Tensile Requirements PDF (63 KB)

Chemical Requirements

ElementComposition %
Grade A
Composition %
Grade B
Composition %
Grade C
Carbon, maxa 0.17 0.22 0.28
Manganese, max      
  Heat analysis 0.90 0.90 0.90
  Product analysis 0.98 0.98 0.98
Phosphorus, maxa 0.035 0.035 0.035
Sulfur, maxa 0.040 0.040 0.040

aApplies to both heat and product analysis

Tensile Requirements

 Grade A
ksi(MPa)
Grade B
ksi (MPa)
Grade C
ksi (MPa)
Tensile strength 45-65 (310-450) 50-65 (345-450) 55-75 (380-515)
Yield strength, minA 24 (165) 27 (185) 30 (205)
Elongation in 8 in. or (200 mm), min, %B 27 25 23
Elongation in 2 in. or (50 mm), min, % 30 28 27

ADetermined by either the 0.2% offset method or the 0.5% extension-under-load method.
BSee Specifications A 20/A 20 M