254 SMO/1.4530 Alternative Material
254 SMO/1.4530 Alternative Material
(OP)
Hello Colleagues,
We are a looking for an alternative material apart from Hastelloy C for 254 SMO. The part that needs to be manufactured is a 1.2 m long cylinder (ID 200 mm, OD 245). The raw material can be either casted or forged. Any recommendations?
We are a looking for an alternative material apart from Hastelloy C for 254 SMO. The part that needs to be manufactured is a 1.2 m long cylinder (ID 200 mm, OD 245). The raw material can be either casted or forged. Any recommendations?





RE: 254 SMO/1.4530 Alternative Material
RE: 254 SMO/1.4530 Alternative Material
You can also add N08925 to the above list. Every major stainless producer makes at least one 6% Mo grade.
make the part by press forming a piece of plate into a cylinder, weld with matching filler, solution anneal (2175-2200F), water quench, and pickle.
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Plymouth Tube
RE: 254 SMO/1.4530 Alternative Material
RE: 254 SMO/1.4530 Alternative Material
S
Corrosion & Rust Prevention Control
RE: 254 SMO/1.4530 Alternative Material
RE: 254 SMO/1.4530 Alternative Material
Isn't there a mistake between 254 SMO and W=1.4530 ?
In my opinion, 254SMO is :
W=1.4547
UNS = S31254
ASME P Number = P 8.4
Conclusion : 1.4547 and 1.4530 are not in the same category
RE: 254 SMO/1.4530 Alternative Material
You mean ASME P-No 8, Group 4.
RE: 254 SMO/1.4530 Alternative Material
RE: 254 SMO/1.4530 Alternative Material
Sincerely,
RE: 254 SMO/1.4530 Alternative Material
My thread is a little bit old and we chose 1.4557 as an alternative in the meantime. No idea what UNS no. that is. But the chemical composition is basically identical to 254 SMO and we get this material approved by our client, too.
stainer: We use this cylinder as a cylinder liner. That means there is a piston moving inside. That's why we cannot coat it.
RE: 254 SMO/1.4530 Alternative Material
The following is only for technical information.
As previously mentioned, 254SMO is W=1.4547
Here are the main chemical analysis differences between
W=1.4547 and W = 1.4530
Sincerely,