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Gayatri Tubes is a leading manufacturer, supplier, and wholesaler of A387 Alloy Steel GR 11, GR22, and GR91 Sheet Plate Structural. We also deal in all types of household stainless steel. A387 Alloy Steel is made with the composition of chemicals like phosphorus, manganese, carbon, molybdenum, chromium, silicon, and sulfur. These alloys A387 are designed with different specifications, condition, form, grades, specialization, hardness, finish standards, and size. There is a wide range of forms of these alloy steel A 387 such as blank, shim sheet, flats, ring, chequered plate, perforated sheet, rolls, plain sheet and so on. Alloy a 387 has variant shape, sizes, thickness, volumes, and shapes. These alloy steel also conform to the chemical uses like zirconium, titanium, aluminum, nitrogen, boron, vanadium, nickel, and nitrogen.
A387 CrMo GR 11, GR22, and GR91 Sheet Plate Structural are applicable in various industries and purposes like furnaces equipment, chemical processing, food processing, and nuclear power plants. These also include applications like industrial boilers, heat exchangers, pipework, and pressurized vessels. Alloy A387 is similarly supplied to industries like the oil and petrochemical industry. ASME a 387 covers the molybdenum for alloy steel plants to elevate the temperature, pressure vessel services. Addition, of molybdenum, gives excellent temperature resistance and corrosion resistance. The addition of molybdenum and chromium increases the tensile strength and at high temperatures. These A387 Alloy Steel GR 11, GR22, and GR91 consist of many chemicals that help them to molds into wieldable, harder alloy, and a higher heat-tolerant alloy.
A387 Alloy Steel GR 11, 22, and 91 are more responsive with the addition of mechanical process and heat treatments. These grades alloy are durable furnishes heavy sheet plates that can survive any high temperatures. A 387 are excellently malleable, with forming properties, also they acquire marvelous welding readily being cut and bent to form the superstructures. Alloy A387 is an excellent resistance body from hydrogen stress cracking, wet, pitting, nipping corrosion, crevice and sulfides stress cracking. A387 Chrome Moly GR 11, GR22, and GR91 Sheet Plate Structural products undergo many tests like pitting resistance test, micro & macro test, flaring test, hardness test and so on.
| Standard | ASTM A387 / ASME SA387 |
| Thickness | 8-100mm |
| Width | 1000mm-4500mm |
| Length | 3000mm-18000mm |
| Surface Condition | Normalized Rolling, As Rolled, Furnace Normalizing, Vacuum Degassing, Simulated Post-Weld Heat Treatment or as per customer requirement. |
| Application | Pressure Vessel Plate, Steel Boiler plate |
| Grade | C | Mn | P | S | Si | Cr | Mo |
| A 387 Gr. 11 | 0.04 - 0.17 | 0.35 - 0.73 | 0.035 | 0.035 | 0.44 - 0.86 | 0.94 - 1.56 | 0.40 - 0.7 |
| A 387 Gr. 22 | 0.04 - 0.15 | 0.25 - 0.66 | 0.035 | 0.035 | 0.5 max | 1.88 - 2.62 | 0.85 - 1.15 |
| A 387 Gr. 91 | 0.08-0.12 | 0.30-0.60 | 0.020 | 0.012 | 0.20-0.50 | 8.00-9.50 | 0.18-0.25 |
| A387 / SA387 Grade 11 | Class 1 | Class 2 |
| Tensile Strength (ksi) | 60-85 | 75-90 |
| Tensile Strength (MPa) | 415-585 | 485-620 |
| Yield Strength (ksi) | 35 | 45 |
| Yield Strength (MPa) | 240 | 310 |
| Elongation in 200mm (%) | 19 | 18 |
| Elongation in 50mm (%) | 22 | 22 |
| Reduction of area in % | - | - |
| A387 / SA387 Grade 22 | Class 1 | Class 2 |
| Tensile Strength (ksi) | 60-85 | 75-100 |
| Tensile Strength (MPa) | 415-585 | 515-690 |
| Yield Strength (ksi) | 30 | 45 |
| Yield Strength (MPa) | 205 | 310 |
| Elongation in 200mm (%) | - | - |
| Elongation in 50mm (%) | 18 | 18 |
| Reduction of area in % | 45 | 45 |
