A387 Chrome Moly Plate

ASME SA / ASTM A387  Gr 12, Gr 11, Gr 22, Gr 22L, Gr 21L, Gr 5, Gr 9, Gr 91

SA387 and A387 is the standard for chrome molybdenum pressure vessel alloy steel plates.

Applied Alloys stocks an extensive range of ASTM A387 plates in a variety of grades. Ready for immediate shipping. Plate can be cut to size or shape required. Ready for immediate shipping.

Chrome molybdenum increases the materials temperature tensile strength making it an excellent choice for elevated temperature environments. A387 displays excellent corrosion resistant and weldability making it ideal for the fabrication of pressure vessels and industrial boilers in the petrochemical and oil industry.

Grade 12 Class 1

Nominal Chromium Content
1.0%

Nominal Molybdenum Content
0.50%

Tensile (MPA)
380 – 550

Yield (MPA)
230 min

Elong. (50mm)
22% min

Grade 12 Class 2

Nominal Chromium Content
1.0%

Nominal Molybdenum Content
0.50%

Tensile (MPA)
450 – 585

Yield (MPA)
275 min

Elong. (50mm)
22% min

Equivalents: BS 620B, EN 13CrMo45, ASTM/ASME A/SA387-12-2, DIN 13CrMo44

Grade 11 Class 1

Nominal Chromium Content
1.25%

Nominal Molybdenum Content
0.50%

Tensile (MPA)
415 – 585

Yield (MPA)
240 min

Elong. (50mm)
22% min

Grade 11 Class 2

Nominal Chromium Content
1.25%

Nominal Molybdenum Content
0.50%

Tensile (MPA)
515 – 690

Yield (MPA)
310 min

Elong. (50mm)
22% min

Grade 22 Class 2

Nominal Chromium Content
2.25%

Nominal Molybdenum Content
1.0%

Tensile (MPA)
415 – 585

Yield (MPA)
205 min

Elong. (50mm)
18% min

Equivalents:
BS 622-515B, EN 10CrMo910, ASTM/ASME A/SA387-22-2, DIN 10CrMo910

Grade 22L

Nominal Chromium Content
2.25%

Nominal Molybdenum Content
1.0%

Tensile (MPA)
415 – 585

Yield (MPA)
205 min

Elong. (50mm)
18% min

Grade 21L Class 1

Nominal Chromium Content
3.0%

Nominal Molybdenum Content
1.0%

Tensile (MPA)
415 – 585

Yield (MPA)
205 min

Elong. (50mm)
18% min

Grade 21 Class 2

Nominal Chromium Content
3.0%

Nominal Molybdenum Content
1.0%

Tensile (MPA)
515 – 690

Yield (MPA)
310 min

Elong. (50mm)
18% min

Grade 5 Class 1

Nominal Chromium Content
5.0%

Nominal Molybdenum Content
0.05%

Tensile (MPA)
415 – 585

Yield (MPA)
205 min

Elong. (50mm)
18% min

Grade 5 Class 2

Nominal Chromium Content
5.0%

Nominal Molybdenum Content
0.05%

Tensile (MPA)
515 – 690

Yield (MPA)
310 min

Elong. (50mm)
18% min

Grade 9 Class 1 & 2

Nominal Chromium Content
9.0%

Nominal Molybdenum Content
1.0%

Tensile (MPA)
Cl1 415 – 585
Cl2 515 – 690

Yield (MPA)
Cl1 205 min
Cl2 310

Elong. (50mm)
18% min

Grade 91

Nominal Chromium Content
9.0%

Nominal Molybdenum Content
1.0%

Tensile (MPA)
585 – 760

Yield (MPA)
415 min

Elong. (50mm)
18% min

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Also see our A516, A537, A553 alloy plate pages