SA662GrB Pressure Vessel Steel Plate

SA662 Gradus B est lamina quaedam Carbonis Mn ferrei materia ad fabricam mediae vel humilis pressionis vasorum temperatura adhibita. ASME SA662 grade B plates in thickness shall be normalized.

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Product Description

1.What is the composition of SA662GrB Pressure Vessel Steel Plate?

           Chemical Composition (Weight %)

Element	ASTM A662 Requirement	Typical Range
Carbon (C)	≤ 0.22%	0.18–0.20%
Manganese (Mn)	0.90–1.35%	1.00–1.25%
Phosphorus (P)	≤ 0.025%	≤ 0.020%
Sulfur (S)	≤ 0.025%	≤ 0.015%
Silicon (Si)	0.15–0.40%	0.20–0.35%

2.What is the difference between SA662 Grade C and SA662 Grade B ASTM?

         Key Differences Between SA662 Grade B and Grade C

Property	SA662 Grade B	SA662 Grade C
Chemical Composition	Lower carbon (C ≤ 0.22%)	Higher carbon (C ≤ 0.27%)
Tensile Strength (MPa)	450–585	485–620
Yield Strength (MPa)	≥ 260	≥ 310
Impact Toughness	Tested at -46°C	Tested at -46°C
Typical Applications	Low-temp storage tanks	Higher-stress vessels