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ASTM A387 alloy steel plates are heat-resistant alloy steel plates primarily used in pressure vessels, boilers, and high-temperature service applications. These plates are manufactured in accordance with ASTM A387 / ASME SA387 standards and are known for their excellent strength, creep resistance, and durability under elevated temperatures.
ASTM A387 Alloy Steel Plate Specifications
Standard:
ASTM A387 / ASME SA387
Thickness Range:
1 mm to 300 mm
Available Widths / Sizes:
1000 mm, 1219 mm, 1500 mm, 1800 mm, 2000 mm, 2500 mm, 3000 mm, 3500 mm, 4050 mm (and custom sizes available upon request)
Surface Condition Options of ASTM A387 Alloy Steel Plate
ASTM A387 alloy steel plates are available in multiple surface finishes to meet different fabrication and application requirements:
2B
2D
BA
No.1
No.4
No.8 / 8K
Mirror finish
Checkered
Embossed
Hairline
Sandblasted
Plate Finish Types of ASTM A387 Alloy Steel Plate
Hot Rolled (HR) Plate
Cold Rolled (CR) Sheet
Available Supply Forms of ASTM A387 Alloy Steel Plate
ASTM A387 alloy steel products can be supplied in various forms, including:
Coils
Foils
Rolls
Plain sheets
Shim sheets
Strips
A387 Steel Sheet Chemical Composition
|
|
C |
Mn |
P |
S |
SI |
Cr |
Mo |
|
Grade 5 |
0.15 max |
0.3 – 0.6 |
0.035 |
0.03 |
0.5 max |
4.00 – 6.00 |
0.45 – 0.65 |
|
Grade 9 |
0.15 max |
0.30 – 0.6 |
0.03 |
0.03 |
1.0 max |
8.0 – 10.0 |
0.9 – 1.1 |
|
Grade 11 |
0.05 – 0.17 |
0.4 – 0.65 |
0.035 |
0.035 |
0.5 – 0.80 |
1.0 – 1.5 |
0.45 – 0.65 |
|
Grade 12 |
0.05 – 0.17 |
0.4 – 0.65 |
0.035 |
0.035 |
0.15 – 0.4 |
0.8 – 1.15 |
0.45 – 0.6 |
|
Grade 22 |
0.05 – 0.15 |
0.3 – 0.6 |
0.035 |
0.035 |
0.5 max |
2.0 – 2.5 |
0.9 – 1.1 |
Mechanical Properties of ASTM A387 Alloy Steel Plate
|
|
Tensile Strength (ksi) |
Tensile Strength (MPa) |
Yield Strength (ksi) |
Yield Strength (MPa) |
Elongation in 2 inches (%) |
|
|
A 387 Grade 5 |
Class 1 |
60-85 |
415-585 |
30 |
205 |
18 |
|
Class 2 |
75-100 |
515-690 |
45 |
310 |
18 |
|
|
A 387 Grade 9 |
Class 1 |
60-85 |
415-585 |
30 |
205 |
18 |
|
Class 2 |
75-100 |
515-690 |
45 |
310 |
18 |
|
|
A 387 Grade 11 |
Class 1 |
60-85 |
415-585 |
35 |
240 |
22 |
|
Class 2 |
70-90 |
485-620 |
45 |
310 |
22 |
|
|
A 387 Grade 12 |
Class 1 |
50-80 |
380-550 |
33 |
230 |
22 |
|
Class 2 |
65-85 |
450-585 |
40 |
275 |
22 |
|
|
A 387 Grade 22 |
Class 1 |
60-85 |
415-585 |
30 |
205 |
18 |
|
Class 2 |
75-100 |
515-690 |
45 |
310 |
18 |
|
Applications of ASTM A387 Alloy Steel Plate
Off-Shore Oil Drilling Companies
Power Generation
Petrochemicals
Gas Processing
Specialty Chemicals
Pharmaceuticals
Pharmaceutical Equipment
Chemical Equipment
Sea Water Equipment
Heat Exchangers
Condensers
Pulp and Paper Industry
FAQ: ASTM A387 Alloy Steel Plates
What is ASTM A387 alloy steel plate used for?
ASTM A387 plates are primarily used in pressure vessels, boilers, heat exchangers, and high-temperature industrial equipment.
What thickness range is available for ASTM A387 plates?
The standard thickness range is from 1 mm up to 300 mm.
Can ASTM A387 plates be supplied in different surface finishes?
Yes. Multiple surface conditions and finishes are available to suit fabrication, corrosion resistance, and aesthetic requirements.
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