API 582

K K

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Jun 29, 2020, 10:51:43 AM6/29/20

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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

Nithin Joseph

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Jun 29, 2020, 11:40:52 PM6/29/20

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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.

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Karthik

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Jun 29, 2020, 11:41:14 PM6/29/20

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Hi,

You can use E7018-1 / ER70S-1B / ER70S-6

Thanks& Regards,

(Karthik)

Karthikeyan.S

M: +66-892512282

E-mail : karthi...@yahoo.com

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Vanchinath S.A.

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Jun 30, 2020, 5:09:57 AM6/30/20

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

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K K

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Jun 30, 2020, 5:09:57 AM6/30/20

to Materials & Welding

Thanks for your response.

Please explain to me why I can't use ER80S-Ni1 for AWS 5.28 GTAW process according to the table - A1 API 582.

Thanks

Kiran

On Tuesday, June 30, 2020 at 9:11:14 AM UTC+5:30, Karthik wrote:

Hi,
You can use E7018-1 / ER70S-1B / ER70S-6

Thanks& Regards,

(Karthik)

Karthikeyan.S

M: +66-892512282
E-mail : karthi...@yahoo.com

On Monday, June 29, 2020, 09:51:39 PM GMT+7, K K <kara...@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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Karthik

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Jun 30, 2020, 6:47:41 AM6/30/20

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Hi,

Since this is P.No.1,Low temperature material, why do you go for ER80S-Ni1 ? Its used for weathering steel and corrosion resistant applications. It can be used to weld SA350, LF5 (P.No.9A) which is 1.5Ni steel

SA350, LF2 and SA333 Gr.6 are C-Mn-Si steel (P.No.1), for this ER70S2 or ER70S-6 are fine. Electrode E7018-1

Thanks& Regards,

(Karthik)

Karthikeyan.S

M: +66-892512282

E-mail : karthi...@yahoo.com

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manish kulkarni

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Jun 30, 2020, 11:12:18 PM6/30/20

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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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GENE MATSKO

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Jul 2, 2020, 12:05:41 AM7/2/20

to 'manish kulkarni' via Materials & Welding

E-7018-1 will give consistant impact properties if the test coupon is welded correctly. One must restrict any weaving and

maintain a fairly high travel speed to insure optimum impact results @ -46C

Gene Matsko

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GENE MATSKO

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Jul 2, 2020, 12:05:44 AM7/2/20

to 'manish kulkarni' via Materials & Welding

The test must be 'monitored' to insure optimum results. You must assure the welder follows the welding instructions

exactly. 1. No weaving. 2. High travel speed. 3. Let the coupon cool between layers.

Gene Matsko

On Tuesday, June 30, 2020, 10:12:16 PM CDT, 'manish kulkarni' via Materials & Welding <material...@googlegroups.com> wrote:

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Vishwas Keskar Welding Manager WELDING

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Jul 13, 2020, 2:30:53 AM7/13/20

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ER70S-6 - will give you required values .

ER80S-Ni1 is not advised in certain environments especially Sulphur or H2S due to corrosion in presence of Ni, S, H2

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