ASTM A387 Cr-Mo Alloy Steel Plate

ASTM A387 ASME SA387:

Grade 2, 5, 9, 11, 12, 21, 21L, 22, 22L, 91

Description

Video Description

ASTM A387 steel plate is a chromium-molybdenum alloy steel plates for pressure vessels plate. ASME SA387 is an American standard pressure vessel plates, mainly applicable to chrome-molybdenum alloy steel plate for welding boilers and high-temperature pressure vessels.
PVQ steel plates are steel sheets used to manufacture steam boilers, pressure vessels and other structural parts of pressure vessels. Since this kind of steel sheet bears a certain air pressure and water pressure, and the use environment of different temperatures, such as high, medium and low temperature, etc., the requirements for this kind of steel plate are relatively strict.
Steel plates for pressure vessels can be classified into carbon steel plates and alloy steel plate according to their composition; they can be divided into high-pressure steel plates, medium-pressure steel plate, and low-pressure steel sheets according to their strength; they can be divided into high-temperature steel plates, medium-temperature steel plate, Low temperature steel plate and corrosion resistant steel plate.

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Chemical Composition of ASTM A387 Alloy Steel Plates, %
Grade UNS C Mn P S Si Cr Mo Others
Grade 2 S50460 0.04-0.21 0.50-0.88 0.025 0.025 0.13-0.45 0.46-0.85 0.40-0.65 –
Grade 12 K11757 0.04-0.17 0.35-0.73 0.025 0.025 0.13-0.45 0.74-1.21 0.40-0.65 –
Grade 11 K11789 0.04-0.17 0.35-0.73 0.025 0.025 0.44-0.86 0.94-1.56 0.40-0.70 –
Grade 22 K21590 0.04-0.15 0.25-0.66 0.025 0.025 ≤0.50 1.88-2.62 0.85-1.15 –
Grade 22L K21590 ≤0.12 0.25-0.66 0.025 0.025 ≤0.50 1.88-2.62 0.85-1.15 –
Grade 21 K31545 0.04-0.15 0.25-0.66 0.025 0.025 ≤0.50 2.63-3.37 0.85-1.15 –
Grade 21L K31545 0.12 0.25-0.66 0.025 0.025 ≤0.50 2.63-3.37 0.85-1.15 –
Grade 5 S50200 ≤0.15 0.25-0.66 0.025 0.025 ≤0.55 3.90-6.10 0.40-0.70 –
Grade 9 K90941 ≤0.15 0.25-0.66 0.025 0.025 ≤1.05 7.90-10.10 0.85-1.15 *A
Grade 91 K90901 0.06-0.15 0.25-0.66 0.025 0.012 0.18-0.56 7.90-9.60 0.80-1.10 *B

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PRODUCT DESCRIPTION

Mechanical Properties of ASTM A387 Alloy Steel
Grade Tensile Strength, ksi[MPa] Yield Strength, min. ksi[MPa] Elongation, min. % Reduction of area, min, %
8 inch 2 inch
Grade 2 CL 1 55-80[380-550] 33[230] 18 22 –
Grade 2 CL 2 70-90[485-620] 45[310] 18 22 –
Grade 12 CL 1 55-80[380-550] 33[230] 18 22 –
Grade 12 CL 2 65-85[450-585] 40[275] 19 22 –
Grade 11 CL1 60-85[415-585] 35[240] 19 22 –
Grade 11 CL2 75-100[515-690] 45[310] 18 22 –
Grade 22 CL1 60-85[415-585] 30[205] – 18 45*A
Grade 22 CL2 75-100[515-690] 45[310] – 18 45*A
Grade 22L CL1 60-85[415-585] 30[205] – 18 45*A
Grade 21 CL1 60-85[415-585] 30[205] – 18 45*A
Grade 21 CL2 75-100[515-690] 45[310] – 18 45*A
Grade 21L CL1 60-85[415-585] 30[205] – 18 45*A
Grade 5 CL1 60-85[415-585] 30[205] – 18 45*A
Grade 5 CL2 75-100[515-690] 45[310] – 18 45*A
Grade 9 CL1 60-85[415-585] 30[205] – 18 45*A
Grade 9 CL2 75-100[515-690] 45[310] – 18 45*A
Grade 91 CL2 85-110[585-760] 60[415] – 18 –

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PRODUCT DISPLAY

Strength（N/mm）
Standard
310、340、350
ASTM A285、BS1501、DIN17175、ΓOCT 5520
360、370、380
ASTM A285、A515、A516、
A442、ΓOCT5520
390、400、410
ASTM A515、A516、A442、BS1501、DIN1715 5、JIS G3116、G3103、G3118、G3115、ΓOCT5520
430、430、440、450
ASTM A515、A516、JIS G3116 、G3103、G3118
460、470
BS1501、DIN17155
480、490
ASTM A515、A516、A537、A737、JIS G31 16、G3113、G3118、G3115
510、520、530
ASTM A455、A299、DIN17155、JIS　 G3115
≥ 490
ASTM A737、JIS G3116

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