Valve Trim Material, Temperature Limits (Degrees Fahrenheit)

Material

Lower/℃

Lower/°F

Upper/℃

Upper/°F

Type 304 Stainless Steel

-268

-450

316

600

Type 316 Stainless Steel

-268

-450

316

600

Bronze

-273

-460

232

450

Inconel

-240

-400

649

1200

Monel K-500

-240

-400

482

900

Monel 400

－

Hastelloy B

－

371

700

Hastelloy C

－

538

1000

Titanium

－

316

600

Nickel

-198

-325

316

600

Alloy 20

-45

-50

316

600

Type 416 Stainless Steel 40RC

-29

-20

427

800

Type 440 Stainless Steel 60RC

-29

-20

427

800

17-4PH

-40

-40

427

800

Alloy 6 (co-cr)

-273

-460

816

1500

Electroless Nickel Plating

-268

-450

427

800

Chrome Plating

-273

-460

316

600

Nitrile (Buna N)

-40

-40

93

200

Fluoroelastomer (Viton and Fluorel)

-23

-10

204

400

TFE

-268

-450

232

450

Nylon

-73

-100

93

200

Polyethylene

-73

-100

93

200

Neoprene

-40

-40

82

180