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Standard Specifications for Valve Material-Part 1

Nov 13, 2015

1. Cast Carbon Steel ASTM A216 Grade WCC

Temp. range = −20 to 800°F (−29 to 427°C)

Composition (Percent)

CMnPSSi
0.251.20.040.0450.6


2. Cast Carbon Steel ASTM A352 Grade LCC

Temp. range = −50 to 650°F (−46 to 343°C)

Composition − Same as ASTM A216 grade WCC


3. Carbon Steel Bar AISI 1018, UNS G10180

Temp. range = −20 to 800°F (−29 to 427°C)

Composition (Percent)

CMnPS
0.15 to 0.20.6 to 0.90.04 max0.05 max


4. Leaded Steel Bar AISI 12L14, UNS G12144

Temp. range = −20 to 800°F (−29 to 427°C)

Composition (Percent)

CMnPSPb
0.15 max0.85 to 1.150.04 to 0.090.26 to 0.350.15 to 0.35


5. AISI 4140 Cr-Mo Steel (Similar to ASTM A193 Grade B7 bolt material)

Temp. range = −55°F to 1000°F (−48 to 538°C).

Composition (Percent)

CMnPSSiCrMoFe
0.38 to 0.430.75 to 1.00.035 max0.035 max0.15 to 0.350.8 to 1.10.15 to 0.25Remainder


6. Forged 3-1/2% Nickel Steel ASTM A352 Grade LC3

Temp. range = −150 to 650°F (−101 to 343°C)

Composition (Percent)

CMnPSSiNi
0.15 max0.5 to 0.80.04 max0.045 max0.6 max3.0 to 4.0


7. Cast Cr-Mo Steel ASTM A217 Grade WC6

Temp. range = −20 to 1100°F (−29 to 593°C)

Composition (Percent)

CMnPSSiCrMo
0.05 to 0.20.5 to 0.80.04 max0.045 max0.60 max1.0 to 1.50.45 to 0.65


8. Cast Cr-Mo Steel ASTM A217 Grade WC9

Temp. range = −20 to 1100°F (−29 to 593°C)

Composition (Percent)

CMnPSSiCrMo
0.05 to 0.180.4 to 0.70.04 max0.045 max0.60 max2.0 to 2.750.9 to 1.2

Previous: Standard Specifications for Valve Material-Part 2

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