Less Expensive Stainless Steels
Q: High metal prices, especially for nickel and molybdenum, have our procurement people looking at less expensive stainless steels like the 200 series.
#materials
Checking Metal Materials With a Magnet
Q: I’ve seen people checking metal materials with a magnet.
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Supplemental Requirement S23 in ASTM A703
Q: A customer has asked whether we can supply carbon and alloy steel valve bodies meeting Supplemental Requirement S23 in ASTM A703.
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Cobalt-based Alloy 6 Materials and Boiler Feedwater Service
Q: I’ve heard that cobalt-base Alloy 6 materials should not be used in boiler feedwater service.
#materials #maintenance-repair
Austenitic Stainless Steels
Q: Do austenitic stainless steels require impact testing when used in low-temperature applications?
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WCC and LCC Casting in ASME B16.34
Q: Why do WCC and LCC castings have different maximum allowable temperatures in ASME B16.34?
#materials #standards
Multi-colored Stain on Valves
Q: I am handling high purity-water and keep getting a multi-colored stain on my valves and other equipment.
#water-wastewater #materials #automation
NACE MR0175/ISO 15156
Q: I see that there is a new version of NACE MR0175 called NACE MR0175/ISO 15156.
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Specifying Valves for Hydrogen Service
Q: When specifying valves for hydrogen service, what are some of the material considerations I should keep in mind?
#materials #maintenance-repair
ASTM A890
Q: Our piping specification requires that duplex stainless-steel castings be supplied per ASTM A890.
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PMI Analysis
Q: Why does the valve supplier refuse to accept my claim that its material is out of specification based on my PMI analysis?
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New NACE Standard MR0103
Q: I've seen references to a new NACE standard, MR0103.
#standards #materials
NACE MR0175
Q: I've heard there are major changes to the 2003 revision of NACE MR0175.
#materials