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Gilbert
 Post subject: NELSON CURVE
PostPosted: Wed Oct 20, 2010 2:31 am 
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In API 941, fig. 1 Operating limits for steels in hydrogen service. What are the numbers/letters besides the circles and squares? ie. 23,21G,1K,1N etc.

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Gilbert
 Post subject: Re: NELSON CURVE
PostPosted: Wed Oct 27, 2010 12:58 am 
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Enclosed API 941 fig. 1


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