Search results for query: *

This is a very good question as I have a CNG vehicle that I park outside and would like to know SOMETHING about how to rate a dry chemical extinguisher -

There is a fine point as to what's killed steel. In particular I refer to ASTM A-6 ,Paragraph 8.0. A-6 states that the minimum Aluminum must be 0.020 % MINIMUM. This is the same language as in A - 20.

Are you still having trouble getting this ?

I might add that for pressure vessel use the thickness MAY go .010 undersize with no penalties -

Need a lot more input - a) what is the pressure ? diameter ???? b) what is the distance ? c) what type of soil - dry / wet / what chemistry and electrolytes ?????????????? d) any big power lines...

In the case of 17 - 4 PH there is an "adjusted " chemistry material called 15 - 5 PH which is a lot more likely to be martensitic. 15 - 5 PH has a lot less banding. Thi primary cause of this is the chemistry ( Cr - Ni ) ratios and a whole bunch of this is due...

Look CLOSELY at ASME Section IX , Paras QW 452.3 and QW 452.4 . Both of these paragraphs specify as a lower O D limit for less than 1 " od that the OD qualified is the size welded . ( versus the 2 3/8 " specimen ) To qualify for a 1/2 " pipe you...

This is in follow -up to my previous post regarding a 316 L stainless piping system which has developed a whole bunch of small leaks - Was in the receiving area today looking at some new ASTM A -312 Grade 316 L . Pipe size is 14 " Schedule 10 S. While the O. D. of the weld seam was smooth...

I am a Mechanical Engineer and from my limited background it looks as if what he is looking for is a " crowbar " circuit ? Is this the case ?

We have the second of our Ozone plants on line. The plants are processing / using the same source water. This is all well and good but on the second plant on - stream we seem to be experiencing through the weld leaks. The pipes in question operate at ~ ~ 4 p H. We have not had problems with...

I am in industry and am proposing use of AN fittings in one of our applications. My question is what is the maximum working pressure for 7075 " W " versus 2024 " D " material. The particular fitting size is - 4 , 1 / 4 "

The primal work on this subject is Kookenboo " Production Functions of various size pipelines " where is developed the cost function factor of .4 exponential factor