LAWAI is the centrifugal casting manufacturer in Taiwan specialized in producing stainless steel & special alloy tubes, sleeves and rings. Custom retainer rings are one of the centrifugal casting products we produce in high frequency.
LAWAI’s retainers rings are for high-performance valves, butterfly valves and semiconductor industries mainly.
Most LAWAI’s customers purchase our blank retainer rings ( pre-machined surfaces) and do the finish machining by themselves.
If customers need finish machined retainer rings, we will machine them by ourselves or cooperate with outsourcing machine shop based on the complexity of the retainer rings.
- The common materials of retainers rings are CF8(SS 304), CF8M(SS 316), CF3M(SS 316L), CF3M-HM and CD3MN(Duplex 2205). Please send us the chemical composition if the materials above do not fit your applications.
- The diameter we produce for retainer rings is smaller than 400 mm. (Max. OD is around 400 mm)
- The main applications of our retainer rings are marine, valve, oil&gas, semiconductor industries …etc.
Please let us know your demands of retainer rings via the left inquiry form or email, LAWAI team are ready to produce valuable retainer rings for you.
The custom retainer rings made at LAWAI, made in Taiwan are good enough for all your applications!
LAWAI INDUSTRIAL CORPORATION
No.1283-1, Ren-ai Road, Chunan Township,
Miaoli County, Taiwan
- E-mail: [email protected]
- Follow LAWAI on FACEBOOK & INSTAGRAM & YouTube
| LAWAI ALLOY | Cast Specifications | Wrought Specifications | ||
|---|---|---|---|---|
| ASTM | UNS | AISI | UNS | |
| CF8 ( EN 1.4308 ) | A351/743/744 CF8 | J92600 | 304 | S30400 |
| CF8M ( EN 1.4408 ) | A351/743/744 CF8M | J92900 | 316 | S31600 |
| CF3M-HM (Min. 2.75% Mo) | ||||
| CF3M ( EN 1.4409 ) | A351/743/744 CF3M | J92800 | 316L | S31603 |
| LAWAI ALLOY | Cast Specifications | Wrought Specifications | ||
|---|---|---|---|---|
| ASTM | UNS | AISI | UNS | |
| CD3MN ( EN 1.4470 ) | A890/A995 4A CD3MN | J92205 | Duplex 2205 | S31803 |





