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  1. HBMetals

    Replace failed PTFE liner with Tantaline for liquid bromine?

    Thank you, WKTaylor & moltenmetal.
  2. HBMetals

    Replace failed PTFE liner with Tantaline for liquid bromine?

    Thank you for your advice. I will forward your message to our engineer. BEST www.metalspiping.com
  3. HBMetals

    Replace failed PTFE liner with Tantaline for liquid bromine?

    Another Photo. www.metalspiping.comhttp://files.engineering.com/getfile.aspx?folder=cbfa2f16-c573-4ec9-910c-dbad418d418b&file=001.jpg
  4. HBMetals

    Replace failed PTFE liner with Tantaline for liquid bromine?

    Hi engineers,we are trying to replace several PTFE lined steel pipes for a liquid bromine line. Pressure rating: 0.2 MPa, Temperature: room/ambient. Please see the attached 3 photos: the flanged steel pipes are lined with PTFE. A small hole was drilled on each end of the pipe to supervising...
  5. HBMetals

    Which Ti grade is most compatible to water saturated with chlorine and salt traces

    Sorry that there's a typo. It should be Ti Grade 7 "Ti-0.15Pd". The nominal composition of Grade 16 is "Ti-0.05Pd". They have identical mechanical properties. However, compared to Gr.16, Gr.7 is more often applied in corrosion applications since there are more approved engineering experiences or...
  6. HBMetals

    Which Ti grade is most compatible to water saturated with chlorine and salt traces

    I think I have a technical literature which says Ti-0.5Pd (Grade 7 titanium) is a TYPICAL crevice-corrosion-resistant titanium material for industrial application with Cl ion ≈ 20%, PH2, 120°~130°C. The application is concentrator equipment in salt purification. Due to the large size, just...
  7. HBMetals

    Carburising Astm A-216 WCB

    Generally, carburization is suitable for low carbon steel(0.1%~0.25%). It is reported that there are new carburization techniques for high-C materials, however, what's the meaning here? I don't get it. www.metalspiping.com
  8. HBMetals

    LCB Heat treatment

    Sorry for the late reply. I just come back from vacation. One of my fellow engineer says it seems that your chemical composition is inapproriate. As a rule of thumb, we should adhere to "Low-Carbon High-Manganese" principle in the production of LCB casting. An actual chemical composition is...
  9. HBMetals

    LCB Heat treatment

    Our engineer once did this heat treatment experiment on LCB casting specimens and I just find some documentation and try to translate the literature partially: three LCB specimens(A, B, C), chemical composition analysed by spectrum apparatus - ok, Specimen A: Normalized + Tempered. Normalizing...
  10. HBMetals

    SA-387 9 Chrome Plate

    metengr is right. ASME SA387 Gr.9 plate is not within the jurisdiction of ASME BPVC Section VIII Division 1. It can't be used. I also did a thorough search on Code Cases - 2015 Edition. So far nothing regarding 9Cr-1Mo is found. However, I have a question: when a new edition of code Cases is...
  11. HBMetals

    HIC & SSC test

    Sulfide stress cracking(SSC) is a special case of hydrogen stress cracking, also known as hydrogen-induced cracking(HIC). This cracking mechanism depends on several factors:hydrogen fugacity, material strength, heat treatment/microstructure, applied stress, and temperature. For many steels...
  12. HBMetals

    ASTM A588 steel plates cladding for a city's landmark

    Dear Hokie66, dhengr & Edstainless, thanks for all your valuable advice. I didn't reply them yesterday because of time difference. For clarification, we are talking about the refurbishment of the 31-meters(102 feet) monument behind the horse statue. You are right, hokie66, the refurbishment work...
  13. HBMetals

    ASTM A588 steel plates cladding for a city's landmark

    Racookpe1978, thanks for your prompt reply and advice. Bronze may be a good idea. However, instead of changing the whole stone monument to bronze statue, the municipal government at present just consider a metal sheet cladding. Could you please recommend a bronze specification for sheets /...
  14. HBMetals

    ASTM A588 steel plates cladding for a city's landmark

    Dear engineers, I am not sure whether this is the right place to pose this question. Recently one of my friends is working on the refurbishment of our city's landmark - Liberation Monument(please see the photo attached). This monument, about 31 meters tall, was made of giant stones about 30...
  15. HBMetals

    A694 F65 flanges manufactured to ASME B16.5

    Thanks for your reply, BigInch. I raise this question is because those F65 flanges supplied were approved by an authoritative Third-Party Inspection corporation appointed by the customer. To my astonishment, they just reviewed the MTR and checked some dimensions. My understanding is A694...
  16. HBMetals

    Cost of 2" & 4" API 5L Pipe

    Hi Asade, you should specify more details: Grade, Qty, Wall Thickness, PSL 1 or PSL 2, Length(Usually 6m or 12m,etc), Painting(black, epoxy, FBE, Galv. etc). Try Alibaba is a good way to source in China since the quality or technology related to produce those pipes are sophisticated...
  17. HBMetals

    A694 F65 flanges manufactured to ASME B16.5

    Hi everyone, I'd like to pose this question about ASTM A694 flanges. We once received an inquiry regarding ASTM A694 Gr.F65 WN 6" SCH80 600# flanges manufactured to ASME B16.5. Since the inquiry is coming from BP(Iraq), I don't think this big company may make such mistakes. However, A694...
  18. HBMetals

    difference b/w L7 and B8 bolts

    Of course they are not interchangeable. Both L7 and B8 bolts are applicable to low-temperature service. However, L7 is a Cr-Mo low alloy steel while B8 is a stainless steel(SS 304). L7 is recommended for temperatures above -73℃ while B8 for temperatures above -255℃(such as Liquid Natural Gas and...
  19. HBMetals

    Testing Bench for Valves

    As Danlap said, it's a bit difficult to give advice due to your vague description. It will be better if you can specify the following details: 1) valve types to be tested 2) pressure ratings(Class 150 ~ 2500 or PN6~PN400, etc) 3) size ranges 4) hydraulic + air ? 5) temperatures (cryogenic or...
  20. HBMetals

    Blind Flanges - Raised Face vs Flat Face

    Hi LittleInch. I don't think "Look at the relevant sections in ASME B 16.5. normally suppliers make all the flanges in RF and then just machine off the RF bit to make a FF flange." is a correct fabrication process to get a FF flange. I am with a forging factory and we used to supply ASME FF W/N...

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