ASTM A387 Grade 22 is the 2.25Cr - 1Mo plate used for heavy-wall hydroprocessing reactors and high-pressure hydrogen service. Its resistance to hydrogen attack is documented across decades of refinery operation, and the grade is routinely supplied in very heavy sections with strict through-thickness property control.
Sarovar Tube Industries manufactures, stocks and exports ASTM A387 Grade 22 Sheets & Plates from Mumbai to customers across the Middle East, South East Asia, Europe, Africa and the Americas. Every heat is verified by in-house testing before despatch and supported by complete documentation, so the material you receive is exactly the material you specified.
The table below sets out the standard manufacturing range for ASTM A387 Grade 22 Sheets & Plates. Sizes and finishes outside this range are produced against firm orders.
| Parameter | Details |
|---|---|
| Thickness Range | Sheet 0.5 mm to 5 mm, Plate 5 mm to 150 mm |
| Width | 1000 mm, 1250 mm, 1500 mm, 2000 mm, 2500 mm and custom |
| Length | 2000 mm to 6000 mm, coil and cut-to-size available |
| Form | Hot rolled plate, cold rolled sheet, chequered plate, coil, strip, blanks |
| Surface | Mill finish, 2B, No.4, pickled, shot blasted, painted |
| Edge | Mill edge, trimmed edge, sheared, plasma / laser / waterjet cut |
| Dimensional Standard | ASTM A20 / A480 / EN 10029 as applicable |
| Value Addition | Cutting, bending, rolling, drilling and machining to drawing |
| Description | Details |
|---|---|
| Primary Standard | ASTM A387 / ASME SA387 Grade 22, Class 1 and Class 2 |
| Grade Designation | ASTM A387 Grade 22 |
| Equivalent Grades | UNS K21590, EN 10028-2 10CrMo9-10, DIN 1.7380 |
| Product Category | Alloy Steel - Sheets & Plates |
| Certification | EN 10204 3.1 as standard, 3.2 with third party inspection on request |
| Thickness (mm) | Standard Width (mm) | Standard Length (mm) | Typical Form |
|---|---|---|---|
| 0.5 - 1.5 | 1000 / 1250 | 2000 / 2500 | Cold rolled sheet |
| 1.6 - 3.0 | 1250 / 1500 | 2500 / 3000 | Sheet / coil |
| 3.1 - 5.0 | 1500 / 2000 | 3000 / 6000 | Sheet / light plate |
| 6 - 12 | 1500 / 2000 | 3000 / 6000 | Hot rolled plate |
| 14 - 25 | 2000 / 2500 | 6000 | Hot rolled plate |
| 26 - 50 | 2000 / 2500 | 6000 | Heavy plate |
| 51 - 100 | 2000 / 2500 | 6000 | Heavy plate |
| 101 - 150 | 2000 / 2500 | 6000 | Heavy plate (on indent) |
Thickness tolerance to EN 10029 or ASTM A20. Cut-to-size pieces and profile cutting supplied against drawings.
Composition limits in weight percent as required by ASTM A387 / ASME SA387 Grade 22, Class 1 and Class 2. Every heat is verified by spectrographic analysis and positive material identification.
| Element | Composition (%) |
|---|---|
| Carbon (C) | 0.05 - 0.15 |
| Manganese (Mn) | 0.30 - 0.60 |
| Phosphorus (P) | 0.035 max |
| Sulphur (S) | 0.035 max |
| Silicon (Si) | 0.50 max |
| Chromium (Cr) | 2.00 - 2.50 |
| Molybdenum (Mo) | 0.90 - 1.10 |
Minimum room temperature properties in the supplied condition. Results for the actual heat supplied are recorded on the mill test certificate.
| Property | Value |
|---|---|
| Tensile Strength (Class 1) | 415 - 585 MPa |
| Yield Strength (Class 1) | 240 MPa min |
| Tensile Strength (Class 2) | 515 - 690 MPa |
| Yield Strength (Class 2) | 310 MPa min |
| Elongation in 50 mm | 18% min |
| Density | 7.85 g/cm3 |
Material is released only after the following checks are completed and recorded:
ASTM A387 Grade 22 Sheets & Plates is specified across the following industries and services:
All material is manufactured and tested to ASTM A387 / ASME SA387 Grade 22, Class 1 and Class 2. Equivalent grades include UNS K21590, EN 10028-2 10CrMo9-10, DIN 1.7380. The governing standard is printed on every mill test certificate.
Every consignment ships with an EN 10204 3.1 mill test certificate covering heat-wise chemical analysis and mechanical properties. Type 3.2 certification with third party inspection by TUV, SGS, BV or Lloyd's is available when specified at the enquiry stage.
Yes. Beyond the standard range shown above we manufacture to customer drawings and specifications, including special lengths, non-standard wall thickness and machined profiles. Share your drawing with the enquiry and our technical team will confirm feasibility and lead time.
Stock items are despatched within three to five working days of order confirmation. Made-to-order material typically takes four to six weeks depending on grade, size and heat treatment requirements. Export documentation and packing are handled in house.
Custom fabrication, special sizes and complete export documentation are handled in house. Send us your drawing or specification and our technical team will come back with a detailed offer, usually within one working day.