ASTM A387 GRADE 22 Class 1 PVQ Plates

ASTM A387 GRADE 22 Class 1

We supply plates to global fabricators serving the oil, gas and petrochemical industry. 

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 22 Class 1 plates are a good option for sour gas environments too. 

 

Equivalents for ASTM A387 Grade 22 Alloy Steel Plates

BS EN ASTM/ASME DIN
622-515B 10 CRMO910 A387-22-1 10 CRMO910

 

Specifications for ASTM A387 Grade 22 Alloy Steel Plates

Chromium & Molybdenum content (according to the ASME specification)

Designation Nominal Chromium
Content (%)
Nominal Molybdenum
Content (%)
A387 Grade 22 2.25% 1.00%

 

Tensile Requirements for ASTM A387 Grade 22 Alloy Steel Plates Class 1 Plates

Designation: Requirement: Grade 22
A387 Grade 22 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 for ASTM A387 Grade 22 Alloy Steel Plates

Element Chemical Composition (%)
A387 Grade 22
Carbon: Heat Analysis: 0.05 – 0.15
Product Analysis: 0.04 – 0.15
Manganese: Heat Analysis: 0.30 – 0.60
Product Analysis: 0.25 – 0.66
Phosphorus: Heat Analysis: 0.035
Product Analysis: 0.035
Sulphur (max): Heat Analysis: 0.035
Product Analysis: 0.035
Silicon: Heat Analysis: 0.50 max
Product Analysis: 0.50 max
Chromium: Heat Analysis: 2.00 – 2.50
Product Analysis: 1.88 – 2.62
Molybdenum: Heat Analysis: 0.90 – 1.10
Product Analysis: 0.85 – 1.15

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