DIN specs

[Metalmeister]

I hate to ask this mundane question, but I've looked at previous threads and even looked at the "Worldwide Guide to Equivalent Irons and Steels" - wow is that book ever counter intuitive.

Question: What is DIN EN 10216-2 or the closest thing to it in ASTM specs.

 

[TVP]

Metalmeister,

DIN EN 10216-2 is a standard covering seamless steel tubes for pressure purposes, specifically for elevated temperature usage. There are at least 25 different steel grades included in this standard. ASTM and ASME do not use the same system that CEN (European Committee for Standardization) uses for covering seamless tubes for pressure purposes, which means that there is no exact equivalent. ASTM A 192/A 192M and ASTM A 692 are two examples of seamless tube standards that are allowed for use under the ASME B&PV code. Do you have a specific grade from DIN EN 10216-2, as that would narrow down which ASTM/ASME spec to use?

 

[metengr]

TVP;
ASTM A 692 is not approved for use by ASME B&PV Code, there is no ASME SA 692 material specification.

 

[CoryPad]

There is no active ASTM A 692 - it was discontinued in 1995.

 

[Metalmeister]

Guys,

Thanks for spending the time to answer my question. I'm looking for a DIN grade comparable to A516, for larger diameter pipe; so that rules out that that a seamless tube DIN spec would be comparable to A516, which is a plate spec.

Are there any free sites that are available for an easy cross reference. I would buy the DIN spec if I knew it was close. I found one table that cross referenced A516-70 to a DIN: SEW 089 Wst E32, which I guess is a grade in DIN 10216-2, but it didn't say that. Thanks again.

 

[metengr]

Metalmeister;
This is confusing. Do you need a DIN spec for pressure vessel quality plate for moderate to low temperature service that can be rolled and seam welded into pipe? If so, you need a DIN spec comparable to ASTM A 671. The various grades of plate used in rolled and seam welded pipe referenced in A 671 specify A 515 and 516. Keep in mind you have various grades of A 516 plate as well.

Or do you need roll and seam welded pipe in a DIN specification that references plate material similar to A 516?

http://www.e-pipe.co.kr/eng/DIN/2458.htm

 

[TVP]

Metalmeister,

If you can answer the questions posed by metengr, then we can direct you to the proper DIN standard. SEW are steel specifications from the German steel association VDEh that has some separate standards from DIN, but I do not recommend using them, as they are not kept up-to-date like DIN standards are.

metengr & CoryPad,

I'm a victim of the way that Knovel packages the ASME B&PV standards. I looked at the 2007 edition, and scrolled down to ASME SA 450, which shows ASTM A 692 as one of the options. However, the version of ASME SA 450 in this collection is the 1996 revision level, hence it still shows ASTM A 692. Obviously the standard is no longer active, and therefore not suitable for use with B&PV applications.

 

[Metalmeister]

Thank you TVP and Metengr,

I'm working with a combination of Chinese and European specs, with a third country asking the questions, and I appear to be the metallurgist in the middle. Based on what I've learned here and from others, the application clearly uses a seamless tube, and thanks to TVP, the DIN spec is for seamless tube. I don't know why they threw me a curve in asking me for a A516-70 comparison. Now that I know the DIN spec incorporates many steel grades I could answer their question more intelligently.

I very much appreciate the support of this forum. Thanks.