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Allowable Stress – Temperature of Monel 400

1. Monel 400 Group 1: Allowable Stress – Temperature Table

Metal Temperature, °F-20~100200300400500600
Max. Allowable Stress, ksi16.714.613.613.213.113.1
Metal Temperature, °F650700750800850900
Max. Allowable Stress, ksi13.113.012.912.711.08.0
*Group 1 refers to Monel 400 bar, seamless pipe & tube (>5″ in OD), and forging of annealed condition.
*Metal temperature shall be interpreted as “not exceeding”.

2. Monel 400 Group 2: Allowable Stress – Temperature Table

Metal Temperature, °F-20~100200300400500600
Max. Allowable Stress, ksi18.716.415.214.714.714.7
Metal Temperature, °F650700750800850900
Max. Allowable Stress, ksi14.714.614.514.311.08.0
*Group 2 refers to Monel 400 plate, seamless tube(≤3″), seamless pipe & tube(≤5″), seamless & welded fittings of annealed condition.
*Metal temperature shall be interpreted as “not exceeding”.

3. Monel 400 Group 3: Allowable Stress – Temperature Table

Metal Temperature, °F-20~100200300400500600
Max. Allowable Stress, ksi20.019.418.617.917.617.3
Metal Temperature, °F650700750800850900
Max. Allowable Stress, ksi17.217.016.814.58.54.0
*Group 3 refers to Monel 400 hot-worked bars(ASME SB164) with hexagonal section(54mm ~102mm).
*Metal temperature shall be interpreted as “not exceeding”.

4. Monel 400 Group 4: Allowable Stress – Temperature Table

Metal Temperature, °F-20~100200300400500600
Max. Allowable Stress, ksi21.421.421.421.421.421.4
Metal Temperature, °F650700750800850900
Max. Allowable Stress, ksi21.420.718.514.58.54.0
*Group 4 refers to Monel 400 as-rolled plate and hot-worked bar or rod with round, square or rectangle section(305mm~356mm).
*Metal temperature shall be interpreted as “not exceeding”.

5. Monel 400 Group 5: Allowable Stress – Temperature Table

Metal Temperature, °F-20~100200300400500600
Max. Allowable Stress, ksi22.922.922.922.922.922.9
Metal Temperature, °F650700750800850900
Max. Allowable Stress, ksi22.822.018.514.58.54.0
*Group 5 refers to Monel 400 hot worked bars with round, square or rectangle section ≤305mm, or with hexagonal section ≤54mm.
*Metal temperature shall be interpreted as “not exceeding”.

6. Monel 400 Group 6: Allowable Stress – Temperature Table

Metal Temperature, °F-20~100200300400500
Max. Allowable Stress, ksi24.324.324.324.324.3
Metal Temperature, °F600650700750800
Max. Allowable Stress, ksi23.923.522.818.012.7
*Group 6 refers to Monel 400 seamless tube(ASME SB163), seamless pipe & tube(ASME SB165) funished in stress-relieving condition.
*Metal temperature shall be interpreted as “not exceeding”.

All tabulated values above are based on ASME Boiler & Pressure Vessel Code Section II, Part D.

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