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■ Overview
Under ASTM A302/A302M steel specification,there are four steel grades,such as A302 Grade A steel plate,A302 Grade B steel plate,A302 Grade C boiler steel plate and A302 Grade D steel plate.Pressure vessel steel plate SA302 Grade A is manganese-molybdenum alloy steel plates intended particularly for welded boilers and other pressure vessels.Boiler steel plate A302 Grade A shall be with minimum yield strength at 310Mpa,and tensile strength within 515-655 Mpa.
■ Full Data
Technical Requirements & Additional Services for A302GRA steel plate:
♦ High tension test
♦ Low temperature impacting test
♦ Normalised for thick plates over 40mm
♦ Simulated post-welded heat treatment (PWHT)
♦ Rolling under standard NACE MR-0175 (HIC+SSCC)
♦ Issued Orginal Mill test certificate under EN 10204 FORMAT 3.1/3.2
♦ Shot blasting and Painting,Cutting and welding as per end user’s demands
♦ High tension test
♦ Low temperature impacting test
♦ Normalised for thick plates over 40mm
♦ Simulated post-welded heat treatment (PWHT)
♦ Rolling under standard NACE MR-0175 (HIC+SSCC)
♦ Issued Orginal Mill test certificate under EN 10204 FORMAT 3.1/3.2
♦ Shot blasting and Painting,Cutting and welding as per end user’s demands
■ Techicals
►Mechnical property for A302GrA steel plate:
►Chemical composition for A302 Grade A steel plate (Product Analysis Max%)
| Yield strength (≥Mpa) | Tensile strength (Mpa) | Elongation in ≥,% | |
| 310 | 515-655 | 200mm | 50mm |
| 15 | 19 | ||
►Chemical composition for A302 Grade A steel plate (Product Analysis Max%)
| Main chemical elements composition of A302Grade A steel plate | ||||||
| Thickness(mm) | C | Si | Mn | P | S | Mo |
| T≤25 | 0.20 | 0.13-0.45 | 0.87-1.41 | 0.035 | 0.035 | 0.41-0.64 |
| 25<T≤50 | 0.23 | |||||
| 50<T | 0.25 | |||||
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