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Yes the supplier has already accepted the contract. Now just before the delivery of product raised this query.

By " Our" means client requirement

Hello everyone, I am procuring JIS 3101 SS-400 grade sheets of thickness 1/16", 1/8" and 3/16". As per our requirement Heat number shall be embossed on sheets for MTC verification. However, supplier is claiming that the heat no. won’t be embossed on the sheets as these sheets are cut from coil...

Thanks LittleInch & The Obturator After reviewing Point# 3 in Notes of Table 8 (ASME B16.5- 2009), the code allows for thinner flanges for size less than 3-1/2". Refers to Table # 9 of Dimensions of Class 150 Flange fittings that shows thinner flange size and port diameter. Therfore to...

Hello everyone, I want to confirm regarding gate valve flange thickness and Port Diameter. I am procuring 3" ×150# Rating gate valve in accordance with API 600. End flanges needs to be in accordance with ASME B16.5. I have noticed that vendors are quoting gate valves having flange thickness of...

I want to confirm that what is maximum time delay between welding and PWHT for welding on ASTM A335 P9 pipe. Can we do PWHT "immediately" after welding or there is some standard time of wait before doing PWHT. Further how much maximum delay is allowed before PWHT? Thanks and Regards,

Hello, I am fabricating heat Exhanger through one of local contractor. As per drawing specification the thickness of Tube sheet is 30mm . However the available plate for tube sheet have thickness of 63mm. Please confirm that is it allowable to reduce thickness by 33mm through machining. Does...

Applicable standard is TEMA for Heat Exchanger Fabrication

Hello, We are executing job for fabrication of Heat Exchanger through Contractor. As per drawing specification, the baffle and impingement plate material is ASTM A283 Grade C but due to material availability issue contractor is requesting to use European standard material EN 10025 S 275. Can we...

Thanks.

We still have Heat resistant paint applied at external surface of stack, at internal surface will heat resistant paint resist corrosion attack due to sulphur content?

Dear Dhurjati Sen: We have check all the process parameters and application of coating or even refractory of 2 inch thick is not impacting on process parameters and foundation.

Dear metengr Thanks, for the same scenario,Can we use ASTM A537 Class 2 as an alternate of A300 Class 1. We basically use this exchanger for LPG service and thickness of shell is 10mm with minimum allowable temperature of 15 centigrade. For ASTM A516 gr 70 what exact type of heat treatment...

Hello, AS we know that ASTM A300 Class 1 has been obsoleted standard, one of our heat exchanger was fabricated using ASTM A300 Class 1. What is other alternate material of this standard, can I use ASTM A516 Gr 70 now?

Dear metengr: What are the minimum allowable temperature limit of ASTM 516 Grade 70 and ASTM A 537 Class 2 ?

Attached please find Material conversion tablehttps://files.engineering.com/getfile.aspx?folder=3d38e998-a3be-42cb-8fb6-bec574646c7f&file=IMG_20181002_140601.jpg

Attached please find two image 1) material conversion table 2)material composition of shell ring I have taken R3 material and find its conversion as in material composition R3 is mentioned against shell ring material whereas in drawing R2 material is written. In conversion book picture you...

Dear XL83NL (Mechanical) Only R2 is mentioned in drawing, no other details are mentioned. I think its equivalent material is ASTM A 537 Class 2 but not too sure. If it is A537 Class 2, can I use A516 Gr 70 instead of A537 Class 2.

Hello, I am fabricating Kettle type heat exchanger from contractor whose specification are as follows: Service of Shell Side: LPG Service of Tube Side: Steam Minimum temperature of LPG : 50 Centigrade Maximum temperature of LPG : 80 Centigrade Minimum Allowable Working temperature of shell...

Hello, We are facing Boiler Stack Corrosion. In 2006 we have installed new stack of boiler , but in recent year due to increase in sulphur content, stack plates are are getting corroded severely. We have plan to replace defective portion of stack. This time we are considering to apply lining or...