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ansi what is the material diff
i am just wondering that what is the difference between sour service material and sweet service material. i know sweet service material cannot handle sour gas or emulsion. then how is the sour service material? i think they are ok with sweet service? is that right? can somebody clarify for me? thanks.
consider hardness. obtain the latest nace standard pertaining to sulfide stress cracking such as mr0301, materials resistant to sulfide stress cracking in corrosive petroleum refining environments; or tm0177 laboratory testing of metals for resistance to sulfide stress cracking and stress corrosion cracking in h2s environments. i would have mentioned mr0175 but it appears to be obsolete.
i lied. mr0175 / iso 15156 15 dec 2003 is current and active.
thanks,jl, i will check mr0175. however, i am still wondering when we order those pipes, what is the material difference? for outside pipe, normally i use a333 gr. 6, also mention it is for sour low temp, if only for low temp, is there difference for material wise?
jl,
are you thinkin of nace mr-0103?
this came out after mr-0175, and is primarily for refineries.
larry,
yes, you can use "sour" material in sweet service. most instruments and valves carry nace certification, regardless of the service we put them in. this way, you don't make a mistake, or run out of "sour" valves.
"do not worry about your problems with mathematics, i assure you mine are far greater."
albert einstein
yup,
mr0103-2005.

2009-09-05, 06:05 PM	#1
huangyhg 超级版主注册日期: 04-03 帖子: 18592 精华: 36 现金: 249466 标准币资产: 1080358888 标准币	ansi 9standards0 code issues - what is the material diff ansi what is the material diff i am just wondering that what is the difference between sour service material and sweet service material. i know sweet service material cannot handle sour gas or emulsion. then how is the sour service material? i think they are ok with sweet service? is that right? can somebody clarify for me? thanks. consider hardness. obtain the latest nace standard pertaining to sulfide stress cracking such as mr0301, materials resistant to sulfide stress cracking in corrosive petroleum refining environments; or tm0177 laboratory testing of metals for resistance to sulfide stress cracking and stress corrosion cracking in h2s environments. i would have mentioned mr0175 but it appears to be obsolete. i lied. mr0175 / iso 15156 15 dec 2003 is current and active. thanks,jl, i will check mr0175. however, i am still wondering when we order those pipes, what is the material difference? for outside pipe, normally i use a333 gr. 6, also mention it is for sour low temp, if only for low temp, is there difference for material wise? jl, are you thinkin of nace mr-0103? this came out after mr-0175, and is primarily for refineries. larry, yes, you can use "sour" material in sweet service. most instruments and valves carry nace certification, regardless of the service we put them in. this way, you don't make a mistake, or run out of "sour" valves. "do not worry about your problems with mathematics, i assure you mine are far greater." albert einstein yup, mr0103-2005. __________________ 借用达朗贝尔的名言：前进吧，你会得到信心! [url="http://www.dimcax.com"]几何尺寸与公差标准[/url]