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Standard Specifications for Valve Material-Part 4

Nov 17, 2015

26. Cast Iron ASTM A126 Class C, UNS F12802

Temp. range = Pressure Retaining Components, −20 to 450°F (−29 to 232°C); Non-Pressure Retaining Components, −100 to 800°F (73 to 427°C); ANSI B31.5 −150°F (−101°C) minimum if the maximum stress does not exceed 40% of the ambient allowable stress.

Composition (Percent)

PS
0.75 max0.15 max


27. Ductile Iron

ASTM A395 Type 60-40-18

Temp. range = −20 to 650°F (−29 to 343°C)

Composition (Percent)


CSiP
3.0 min2.5 max0.08 max



28. Ductile Ni-Resist Iron

ASTM A439 Type D-2B, UNS F43001

Temp. range = −20 to 1400°F (−29 to 760°C)

Composition (Percent)

CSiMnPNiCr
3.0 min1.5 to 3.000.70 to 1.250.08 max18.0 to 22.02.75 to 4.0


29. Valve Bronze

ASTM B61, UNS C92200

Temp. range = −325 to 550°F (−198 to 288°C)

Composition (Percent)

CuSnPbZnNiFeSP
86.0 to 90.05.5 to 6.51.0 to 2.03.0 to 5.01.0 max0.25 max0.05 max0.05 max


30. Tin Bronze

ASTM B564 Grade UNS C90500

Temp. range = −325 to 400°F (−198 to 204°C)

Composition (Percent)

CuSnPbZnNiFeSP
86.0 to 89.09.0 to 11.00.30 max1.0 to 3.01.0 max0.2 max0.05 max0.05 max


31. Manganese Bronze

ASTM B584 Grade UNS C86500

Temp. range = −325 to 350°F (−198 to 177°C)

Composition (Percent)

CuSnPbNiFeAlMnZn
55.0 to 60.01.0 max0.4 max1.0 max0.4 to 2.00.5 to 1.50.1 to 1.536.0 to 42.0


32. Cast Aluminum Bronze

ASTM B148 Grade UNS C95400

Temp. range = ANSI B31.1, B31.3, −325 to 500°F (−198 to 260°C);

ASME Section VIII, −325 to 600°F (−198 to 316°C)

Composition (Percent)

CuAlFeMnNi
83.0 min10.0 to 11.53.0 to 5.00.50 max1.5 max


33. Cast Aluminum Bronze

ASTM B148 Grade UNS C95800

Temp. range = −325 to 500°F (−198 to 260°C)

Composition (Percent)

CuAlFeMnNiSi
79.0 min8.5 to 9.53.5 to 4.50.8 to 1.54.0 to 5.00.1 max


34. B16 Yellow Brass Bar

ASTM B16 Grade UNS C36000, 1/2Hard

Temp. range = Non-Pressure

Retaining Components, −325 to 400°F (−198 to 204°C)

Composition (Percent)

CuPbFeZn
60.0 to 63.02.5 to 3.70.35 maxRemainder

Previous: Standard Specifications for Valve Material-Part 5

Next: Standard Specifications for Valve Material-Part 3

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