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Pipe-Lok Vales & Fittings Company delivers precision-engineered instrumentation fittings and valves trusted for reliability, safety, and performance in industrial applications with a strong focus on engineering excellence and quality control.

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Material Data

Technical Information

Reference data for the material grades Pipe-Lok Vales & Fittings uses in its instrumentation fittings, filters and valves. Use it to compare grades for your application, then confirm the exact values against the Material Test Certificate supplied with your order.

Chemical Composition Mechanical Properties

Chemical Composition

Weight % (single values are maximum unless stated)

Grade UNS C Cr Ni Mo Other Key Elements
Austenitic Stainless Steel
SS 304S304000.0818.0 – 20.08.0 – 10.5–Mn 2.00, Si 0.75
SS 304LS304030.0318.0 – 20.08.0 – 12.0–Mn 2.00, Si 0.75
SS 316S316000.0816.0 – 18.010.0 – 14.02.0 – 3.0Mn 2.00, Si 0.75
SS 316LS316030.0316.0 – 18.010.0 – 14.02.0 – 3.0Mn 2.00, Si 0.75
SS 316TiS316350.0816.0 – 18.010.0 – 14.02.0 – 3.0Ti 5×(C+N) – 0.70
SS 310SS310080.0824.0 – 26.019.0 – 22.0–Mn 2.00, Si 1.50
SS 904LN089040.02019.0 – 23.023.0 – 28.04.0 – 5.0Cu 1.0 – 2.0
6Mo (254 SMO)S312540.02019.5 – 20.517.5 – 18.56.0 – 6.5N 0.18 – 0.25, Cu 0.50 – 1.00
Duplex & Super Duplex
Duplex 2205S322050.03022.0 – 23.04.5 – 6.53.0 – 3.5N 0.14 – 0.20
Super Duplex 2507S327500.03024.0 – 26.06.0 – 8.03.0 – 5.0N 0.24 – 0.32, Cu 0.50
Nickel Alloys
Alloy 20N080200.0719.0 – 21.032.0 – 38.02.0 – 3.0Cu 3.0 – 4.0, Nb 8×C – 1.00
Monel 400N044000.30–63.0 min–Cu 28.0 – 34.0, Fe 2.5
Monel K500N055000.25–63.0 min–Cu 27.0 – 33.0, Al 2.30 – 3.15, Ti 0.35 – 0.85
Inconel 600N066000.1514.0 – 17.072.0 min–Fe 6.0 – 10.0
Inconel 625N066250.1020.0 – 23.058.0 min8.0 – 10.0Nb+Ta 3.15 – 4.15, Fe 5.0
Inconel 718N077180.0817.0 – 21.050.0 – 55.02.8 – 3.3Nb+Ta 4.75 – 5.50, Ti 0.65 – 1.15
Incoloy 800N088000.1019.0 – 23.030.0 – 35.0–Fe 39.5 min, Al 0.15 – 0.60, Ti 0.15 – 0.60
Incoloy 825N088250.0519.5 – 23.538.0 – 46.02.5 – 3.5Cu 1.5 – 3.0, Ti 0.6 – 1.2, Fe 22.0 min
Hastelloy C276N102760.01014.5 – 16.5Balance15.0 – 17.0W 3.0 – 4.5, Fe 4.0 – 7.0
Hastelloy C22N060220.01520.0 – 22.5Balance12.5 – 14.5W 2.5 – 3.5, Fe 2.0 – 6.0
Hastelloy B2N106650.021.0Balance26.0 – 30.0Fe 2.0
Hastelloy B3N106750.011.0 – 3.065.0 min27.0 – 32.0Fe 1.0 – 3.0
Titanium
Titanium Grade 2R504000.08–––O 0.25, Fe 0.30, Ti Balance
Titanium Grade 5R564000.08–––Al 5.5 – 6.75, V 3.5 – 4.5, Fe 0.40, O 0.20
Typical limits per the relevant ASTM / ASME specifications. Actual composition is reported on the Material Test Certificate (EN 10204 3.1) supplied with each order.

Mechanical Properties

Minimum values, annealed / solution-annealed condition at room temperature

Grade Tensile Strength (MPa) Yield Strength 0.2% (MPa) Elongation (%) Hardness (max)
Austenitic Stainless Steel
SS 3045152054092 HRB
SS 304L4851704092 HRB
SS 3165152054095 HRB
SS 316L4851704095 HRB
SS 316Ti5152054095 HRB
SS 310S5152054095 HRB
SS 904L4902203590 HRB
6Mo (254 SMO)6553103596 HRB
Duplex & Super Duplex
Duplex 22056554502531 HRC
Super Duplex 25077955501532 HRC
Nickel Alloys
Alloy 205512413095 HRB
Monel 40048319335–
Inconel 60055224130–
Inconel 62582741430–
Incoloy 80051720730–
Incoloy 82558624130–
Hastelloy C27669028340–
Hastelloy C2269031045–
Titanium
Titanium Grade 234527520–
Titanium Grade 589582810–
Typical minimums per the relevant ASTM product specification (bar / forging / plate). Precipitation-hardened grades such as Monel K500 and Inconel 718 depend on heat treatment; values on request. Actual results are reported on the MTC.

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