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ansi ansi b16.9
welded seam fittings are covered by ansi b16.9 standards? or they must be seamless?
if you review asme/ansi b16.9, this pertains to wrought butt welding fittings that could be welded or seamless. under paragraph 5), material, wrought fittings are covered under the following material specifications - astm a 234, a 403, a 420, a 815, b 361, b 363, and b 366. for example, standard specification astm a 420 deals with welded or seamless carbon or low alloy steel fittings.
note; standard specification for welded or seamless carbon or low alloy steel fittings is a 234, not a 420.
thank you very much metengr.
your answer helped me too much.
nuke1973

__________________
借用达朗贝尔的名言：前进吧，你会得到信心!
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2009-09-05, 03:53 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 - ansi b16.9 ansi ansi b16.9 welded seam fittings are covered by ansi b16.9 standards? or they must be seamless? if you review asme/ansi b16.9, this pertains to wrought butt welding fittings that could be welded or seamless. under paragraph 5), material, wrought fittings are covered under the following material specifications - astm a 234, a 403, a 420, a 815, b 361, b 363, and b 366. for example, standard specification astm a 420 deals with welded or seamless carbon or low alloy steel fittings. note; standard specification for welded or seamless carbon or low alloy steel fittings is a 234, not a 420. thank you very much metengr. your answer helped me too much. nuke1973 __________________ 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]