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■ Overview
In latest GB 3531 2014 version specification,it added 15MnNiNbDR,15MnNiNbDR steel plate,15MnNiNbDR boiler plate.15MnNiNbDR steel plate shall be done normalized or Normalized plus Tempered heat treatment and with low temperature impacting test under minus 50 Deg.C with Min.60J energy.
■ Full Data
Technical Requirements & Additional Services for 15MnNiNbDR steel plate:
♦ Charpy V-notch impact test at low temperature
♦ Cutting and welding as per end user’s demands
♦ 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
♦ Ultrasonic test under GB/T2970,JB4730,EN 10160,ASTM A435,A577,A578
♦ Charpy V-notch impact test at low temperature
♦ Cutting and welding as per end user’s demands
♦ 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
♦ Ultrasonic test under GB/T2970,JB4730,EN 10160,ASTM A435,A577,A578
■ Techicals
►Mechnical property for 15MnNiNbDR Pressure vessel steel plate:
| Thickness (mm) | |||
| 15MnNiNbDR | > 10 ≤ 16 | > 16 ≤ 36 | > 36 |
| Yield strength (≥Mpa) | 370 | 360 | 350 |
| Tensile strength (Mpa) | 530-630 | 530-630 | 520-620 |
►Chemical composition for 15MnNiNbDR Pressure vessel steel plate (Heat Analysis Max%)
| Main chemical elements composition of 15MnNiNbDR steel plate | |||||||
| C | Si | Mn | Ni | Nb | P | S | Alt (min.) |
| 0.18 | 0.15-0.50 | 1.20-1.60 | 0.30-0.70 | 0.0015-0.04 | 0.02 | 0.008 | - |
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