Pressure Vessel & Boiler Plate · pressure-vessel plate for reactor and column shells, heat-exchanger shells, boiler and steam drums, LPG and ammonia storage spheres, and hydrotreater vessels
1.1 This specification covers two grades (C and D) of carbon steel plates of structural quality for general application. 1.2 When the steel is to be welded, a welding procedure suitable for the grade of steel and intended use or service is to be utilized. See Appendix X3 of Specification A6/A6M for information on weldability. 1.3 The values stated in either inch-pound units or SI units are to be regarded separately as standard. Within the text, the SI units are shown in brackets. The values stated in each system…
Specification text excerpt, reproduced for reference. Read the full ASME SA-283/SA-283M text →
| Elements | Grade C |
|---|---|
| Carbon, max | 0.24 |
| Manganese, max | 0.90 |
| Phosphorus, max | 0.030 |
| Sulfur, max | 0.030 |
| Silicon / Plates 1½ in. [40 mm] and under, max | 0.40 |
| Silicon / Plates over 1½ in. [40 mm] | 0.15-0.40 |
| Copper, min % when copper is specified | 0.20 |
Limits as specified in ASME SA-283/SA-283M. Where the standard sets different values by thickness or product analysis, each band is shown separately.
| Property | Grade C |
|---|---|
| Tensile strength, ksi [MPa] | 55-75 [360-515] |
| Yield point, min, ksi [MPa] | 30 [205] |
| Elongation in 8 in. [200 mm], min, %B | 22 |
| Elongation in 2 in. [50 mm], min, %B | 25 |
Mechanical requirements for the thickness ranges shown. Impact testing is carried out at the temperature specified for the grade.
SA283 Gr.C is normally specified for reactor and column shells, heat-exchanger shells, boiler and steam drums, LPG and ammonia storage spheres, and hydrotreater vessels.
We supply it cut to size by plasma, laser or waterjet, with edges machined or flame-cut to your drawing, and can deliver in the heat-treatment condition your fabrication procedure requires.
Supplied in the heat-treatment condition the standard requires for the grade — as-rolled, normalized, normalized and tempered, or quenched and tempered. Simulated post-weld heat treatment can be carried out and reported before shipment.
Mill test certificate to EN 10204 3.1 / 3.2; Ultrasonic testing to EN 10160 (S1–S3) or ASTM A578; HIC to NACE TM0284 and SSC to NACE TM0177; Simulated post-weld heat treatment (PWHT) on request; Third-party inspection by SGS, BV, TÜV or Intertek
Seaworthy packing — bottom skids, steel strapping, VCI film and edge protection — is standard for sea freight. Container loading plans with piece weights are issued before shipment.
Send the grade or the standard you specify, the thickness range, quantity and destination port. We reply with price, lead time, delivery term and the applicable certificate within 12 hours (Mon–Sat, GMT+8).
