Hello Asad,
See the extracts from the texts from specification for SA 420. "E" stands for electric furnace.
Thanks.
Pradip Goswami,P.Eng.IWE
Welding & Metallurgical Specialist
SA-420/SA-420M- SPECIFICATION FOR PIPING FITTINGS OF WROUGHT CARBON STEEL AND ALLOY STEEL FOR LOWTEMPERATURE SERVICE
5.1 The material for fittings shall consist of forgings, bars, plates, seamless or fusion welded tubular products with filler metal added. It shall conform to the chemical requirements in Table 1, and be made by one of the following processes: open-hearth, basic-oxygen, or electric-furnace.
The steels shall be made using recognized melting practices necessary to produce steels that shall meet the impact requirements of this specification.
From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of asad azmi
Sent: Thursday, June 14, 2012 1:48 AM
To: materials-welding@googlegroups.com
Subject: [MW:14540] Meaning of E corresponding to melting process
Dear All,
Greetings.
for a elbow Material SA 420 WP L6, MTC is showing "E" for melting process.
What is the meaning of "E".
please give code reference.
Thanks & Regards
Asad Azmi
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