ASTM A53S & ASTM 106A

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Soheb Active Contributor Join Date: Feb 2008 Posts: 23	ASTM A53S & ASTM 106A 02/22/2008 5:57 AM
	Why ASTM A53S is not interchangeable with ASTM A106A. What is the major difference in these two material. Why not A53S is not used for High pressure/Temp. applications
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Zaphod2Headed Power-User Join Date: Nov 2007 Location: Alberta Canada Posts: 182 Good Answers: 9	#1 Re: ASTM A53S & ASTM 106A 02/22/2008 11:29 AM
	Hi Soheb, By "A53S" I am assuming you mean A/SA 53 seamless. A53 is the standard spec for steel pipe welded or seamless, A106 is the standard spec for seamless carbon steel pipe for high temperature service. Depending on the use, there may be code requirements that determine which materials can be used where, but in terms of the chemistry and physical properties, there is very little difference. The company I work for orders our high temperature pipe to be certified to all of the following A/SA106B, A/SA53B, API5L and CSA Z245.1. The standards are all very similar. In practice, most A53 is used threaded and coupled, such pipe is usually thin wall welded, which would exclude it from dual certification to A106. Hope this helps until a better explanation is given! __________________ Vote for something useful this time, vote to repeal the second law of thermodynamics!
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Anonymous Poster	#3 In reply to #1 Re: ASTM A53S & ASTM 106A 03/15/2009 11:30 PM
	Please send me the above ASTM A53,ASTM 106B Spec and Pressure temperature Ratings.
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Abdel Halim Galala Guru Join Date: Feb 2007 Location: Cairo, Egypt Posts: 1733 Good Answers: 248	#2 Re: ASTM A53S & ASTM 106A 02/23/2008 8:52 AM
	For example when we compare between A106-B and A53-B seamless from chemical composition point of view, we find that : 1. A106-B contains silicon, min. 0.10% where A53-B has zero%, and silicon is the important element for improving the heat resistance criteria. 2. A106-B contains manganese 0.29-1.06%, where A53-B 1.2%. 3. A106-B contains low sulfer and phosphorus, max. 0.035% where A53-B contains 0.05 and 0.045% respectively. __________________ It is better to be defeated on principles, than to win on lies!
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