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Nickel Alloys (109)
Stainless Steel (214)
Duplex & Super Duplex (22)
Chrome Moly (52)
Mild Steel (43)
Titanium (12)
Zirconium (3)
Aluminum (14)
Bronze Alloys (24)
Flux (2)

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Pitting Resistance Equivalent Number

The pitting and crevice corrosion resistance of a steel is primarily a function of the steel composition, with chromium, molybdenum and nitrogen playing the major roles. The Pitting Restance Equivalence number (PREn) is an index used to rank the resistance of individual steels to pitting and crevice corrosion.

Bruscato X-Factor

The Bruscato X-factor is a way to measure temper embrittlement resistance in applications where the weld metal deposit may be exposed to high temperatures over a long period of time. Certain residual elements (Phosphorus, Tin, Antimony and Arsenic) migrate to grain boundaries over time in these high temperature conditions, causing a loss of toughness. This is known as temper embrittlement.

The X-factor is a numerical value that is calculated based on levels of residual elements in the weld deposit - lower x-factors represent lower levels of these tramp elements and higher resistance to temper embrittlement.

Nickel Alloy Filler Metal Reference

Base Metal Bare Wire (MIG, TIG, SAW) Coated Electrodes
Name UNS No AWS 5.14 UNS No Oxford Alloys AWS 5.11 UNS No Oxford Alloys
Alloy 59 N06059 ERNiCrMo-13 N06059 59 ENiCrMo-13 W86059 59
Nickel 200 N02200 ERNi-1 N02061 61 ENi-1 W82141 141
Nickel 201 N02201 ERNi-1 N02061 61 ENi-1 W82141 141
Alloy 400 N04400 ERNICu-7 N04060 60 ENiCu-7 W84190 190
Alloy 600 N06600 ERNiCr-3 N06082 82 ENiCrFe-3 W86182 182
Alloy 617 N06617 ERNiCrCoMo-1 N06617 617 ENiCrCoMo-1 117
Alloy 622 N06022 ERNiCrMo-10 N06022 622 ENiCrMo-10 W86022 122
Alloy 625 N06625 ERNiCrMo-3 N06625 625 ENiCrMo-3 W86112 112
Alloy 825 N08825
Alloy 825 N08825 ERNiFeCr-1 N08065 825 ENiCrMo-3 W86112 112
Alloy C-276 N10276 ERNiCrMo-4 N10276 C-276 ENiCrMo-4 W80276 C-276
CW-2M N26455 ERNiCrMo-4 N10276 C-276 ENiCrMo-4 W80276 C-276
CW-6MC N26625 ERNiCrMo-3 N06625 625 ENiCrMo-3 W86112 112
CY-40 N06040 ERNiCr-3 N06082 82 ENiCrFe-3 W86182 182
CX2MW N26022 ERNiCrMo-10 N06022 622 ENiCrMo-10 W86022 122
CZ-100 N02100 ERNi-1 N02061 61 ENi-1 W82141 141
M-31-1 N24135 ERNiCu-7 N04060 60 ENiCu-7 W84190 190
Alloy X N06002 ERNiCrMo-2 N06002 X ENiCrMo-2 W86002 X

Source: Guidelines for the welded fabrication of nickel alloys for corrosion-resistant service by A Nickel development Institute Reference Book Series N 11 012, 1994. Data contained in this publication has been prepared for the general information of the reader and should not be used or relied on for specific applications without first securing competent advice.

Nickel Alloy Dissimilar Welding

Filler Metal Identification Table

Ref No Base Alloy Bare Wire AWS 5.14 Oxford Alloy Electrode AWS 5.11 Oxford Alloy
1 Alloy 200 ERNi-1 61 ENi-1 141
2 Alloy 400 ERNiCu-7 60 ENiCu-7 190
3 Alloy 600 ERNiCr-3 82 ENiCrFe-3 182
4 Alloy 600 - - ENiCrFe-2 A
5 Alloy 625 ERNiCrMo-3 625 ENiCrMo-3 112
6 Alloy 622 ERNiCrMo-10 622 ENiCrMo-10 122
7 Alloy C-276 ERNiCrMo-4 C-276 ENiCrMo-4 C-276

Suggested Filler Metals for Dissimilar Metal Welds

Base Metal 200
201
CZ-100
400
K-500
M-35-1
825
20 Mo-4
20 Mo-6
600
CY-40
690 625,725
625 Plus
718,CW-6MC
59
686
622
CX2MW
CW-2M
200/201
CZ-100
400/K-500
M-35-1
1,2
825 1,3,4,5 3,4,5
600/CY-40 1,3,4 3,4 3,4,5,6
690 1,3,4 3,4 3,4,5,6 3,4
625,725
625 Plus
718,CW-6MC
1,3,4,5 3,4,5 3,4,5,6 3,4 3,4
59/686 1,3,4,5 3,4,5 3,4,5,6 3,4 3,4 5,6
622/CX2MW 1,6 3,4 5,6 3,4 3,4 5,6 5,6
C-276
CW-2M
1,3,4,7 3,4 5,6,7 3,4 3,4 5,6,7 5,6,7 5,6,7
4 to 6% Mo Stainless Steel 1,5,6 3,4 5,6 3,4,5 3,4,5 5,6 5,6 5,6 6,7
300 Series Stainless 1,3,4 3,4 5,6 3,4 3,4 5,6 5,6 5,6 6,7
Carbon & Low Alloy Steel 1,3,4 2 3,4 3,4 3,4 5,6 5,6 5,6 6,7

Source: Guidelines for the welded fabrication of nickel alloys for corrosion-resistant service by A Nickel development Institute Reference Book Series N 11 012, 1994. Data contained in this publication has been prepared for the general information of the reader and should not be used or relied on for specific applications without first securing competent advice. Oxford Alloys technical data sheets and Material Safety Data Sheets (MSDS) are available here. OXFORD ALLOYS is a registered trademark of Oxford Alloys, Inc.

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