Re: [MW:31087] API 582

ER 70 S2 and E 7018-1 do not give consistent impact at -46 Deg C . Many failures are reported. 

For guaranteed impact at -46 deg C ER 80SNi 1 Can be used Sometimes there are restrictions in some services due to preferential weld corrosion problem.

Regards

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On Tuesday, June 30, 2020, 1:17 PM, Vanchinath S.A. <vanchinaths@gmail.com> wrote:

ER 70S2 spl  wire is available meeting nace requirements and impact at minus 46 Deg C

On Tue, 30 Jun 2020, 09:10 Nithin Joseph, <nithindsilva4u@gmail.com> wrote:

ASTM A333 Gr.6 to ASTM A350 LF2.

Both materials are 70 KSI grades, hence matching filler wire is ER 70S types. You can decide on designation after verifying with MTC, preferably ER 70S-3 or 6. 

On Mon, 29 Jun 2020, 18:51 K K, <karan.hbl@gmail.com> wrote:

Dear Experts.

Can anyone suggest to according to API 582 as per TABLE - A1 has not recommended ER80S-Ni1 for AWS 5.28 GTAW process.

Please explain to me in detail the table - A1 API 582 and which electrode shall I use for the below-mentioned material.

PQR material - ASTM A333 Gr.6 to ASTM A350 LF2.

PQR Thickness - 12.7 mm.

Impact tested - -46°C

Thanks and regards,

Kiran

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