E 7018 or E 7018-1

williams p wilson

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Nov 2, 2022, 11:19:24 PM11/2/22

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Dear Experts,

Greetings to all.

Could you please suggest suitable SMAW welding electrode (E 7018 or E 7018-1) for the below specifications,

MOC : SA 516 Gr.70 + N , 70 mm Thickness

PWHT : 610 ° C x 300 minutes minimum

Impact Test after HT : -29° C

Weld Metal & HAZ Hardness (Max.) : 22 HRC

Thank You & Regards

Williams P Wilson

+968-94600828

QA/QC Engineer

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Kannayeram Gnanapandithan

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Nov 2, 2022, 11:47:33 PM11/2/22

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go with E7018-1.

Even after SR, tensile will match with base metal. when sr is being done, in weldmetal 35Mpa is being reduced. Since 7018-1 has got more Manganese, it will will compensate the strength as well as impact also.

THANKS & BEST REGARDS,

KG.PANDITHAN, BE, IWE, CSWIP 3.1,

ISO 9712 Level 2 in VT,

ASNT-Level II in PT,MT,RT & UT,

LA ISO 9001-2015,

International Welding Engineer.

CONSULTANT-WELDING & QUALITY

Mobile no: +919940739349

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Vishwas Keskar Welding Manager WELDING

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Nov 2, 2022, 11:54:23 PM11/2/22

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E7018 shall satisfy the requirement.

Pl ensure that the electrode batch is tested for above conditions mentioned by you .

Get the Welding Consumable Manufacturers confirmation .

Thanks

Vishwas -IWE

International Welding Engineer

sujit kumar

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Nov 3, 2022, 12:17:31 AM11/3/22

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E-7018 Elextrode is acceptable for SA516 Gr 70

Plese, ensure the electrode should be impact tested at -29 degrees. It will be available in MTC of the electrode.

Best Regards

Sujit kumar.

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