| base | crabon steel | C-Mo steel | 0.5~1.25 Cr-Mo steel | 2~2.25 Cr-Mo steel | 3~5Cr- Mo steel | 7~9Cr- Mo steel | 9Cr-Mo- V-Nb steel |
| crabon steel | A | A | A | A | A | A | A |
| C-Mo steel | A | B | B | B | B | B | B |
| 0.5~1.25Cr-Mo steel | A | B | C | C | C | C | C |
| 2~2.25Cr-Mo steel | A | B | C | D | D | D | D |
| 3~5Cr-Mo steel | A | B | C | D | E | E | E |
| 7~9Cr-Mo steel | A | B | C | D | E | F | F |
| 9Cr-Mo-V-Nb | A | B | C | D | E | F | H |
Ps: A. crabon steel (E7016，E7018)
B. C-0.5Mo steel (E7016-A1,E7018-A1)
C. 1.25Cr-0.5Mo steel(E8018-B2,E8018-B2L)
D. 2.25Cr-1Mo steel(E9018-B3,E9018-B3L)
E. 5Cr-0.5Mo steel(E8016-B6,B6L,E8018-B6,B6L)
F. 9Cr-1Mo steel(E8016-B8,B8L,E8018-B8,B8L)
H. 9Cr-1Mo -V-Nb steel (E9016-B9,9018-B9)
寄件者： sreedhar ch <sdchitturi@gmail.com>
收件者： materials-welding@googlegroups.com
寄件日期： 2012/10/19 (週五) 12:28 PM
主旨： Re: [MW:15692] Heteregenous weld - Filler metal choice
Can be any One (Alloy/CS) filler metal , if a PQR for both exists.
On Thu, Oct 18, 2012 at 3:33 PM, Zakaria ghrab <zakaria.ghrab@gmail.com> wrote:
Dear Experts,--
We prepared one PQR alloy steel grade P91 welded to carbon steel.Coupon test welded GTAW/SMAW ER90SB-9 / E9015-B9. Our client reject the PQR and said that the filler metal shall be compatible with the lower grade (with crabon steel) in our case.
Do we have any support from code/standard and any metallurgical impact.
Construction code : ASME B31.1
Regards.
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