Filler Metal Selection Charts

Filler Metal
Selection Chart
GRADE APPLICATIONS
Eni-1 (FM 141)
ERNi-1 (FM 61)
Ni 200 and 201 dissimilar combinations of nickel alloys and steels. Cladding of steels.
ENiCU-7 (FM 190)
ERNiCU-7 (FM 60)
Alloys 400, R405 and K500, CU and CU nickle alloys. Cladding of steels.
ECUNi (FM 67)
ERCUNi (FM 187)
Alloy 450 and CU nickel alloys 70/30 80/20 90/10.
ENiCRFE-3 (FM 182)
ERNiCR-3 (FM 82)
Alloys 600 and 601, 800, 800HT and 330.
Dissimilar combinations of steels and nickel alloys.
ENiCRMo-3 (FM 112)
ERNiCRMo-3 (FM 625)
Alloys 625, 601, 686, 622, C-276 and other pit-resistant alloys.
Dissimilar combinations of steels and nickel-base alloys. Cladding of steels.
ENiCRCOMo-1 (FM 117)
ERNiCRCOMo-1 (FM 617)
Alloys 617, 800HT, dissimilar combinations of high temperature alloys.
ENiCRMo-4 (FMC-276)
ERNiCRMo-4 (FMC-276)
Alloy 276 and other pit-resistant alloys. Cladding of steels.
Dissimilar combinations of steels and nickel-base alloys.
ENiCRFE-2 (WLD A) Alloys 800 and 800HT, 600 and 601. Joining dissimilar combinations of carbon, stainless, and nickel-base alloys.
ERNiCRFE-5 (FM 62) Alloy 600
These recommendations are general and are useful only as a guide to the proper selection of filler metal. Care should always be taken to meet the engineered requirements of the fabricated item when choosing the filler metal and welding process.

Stainless Steel Metallurgical Groups

Austenitic

The Austenitic group contains chromium and nickel as the primary alloying elements and are the most widely used. They can be hardened by cold working but not by heat treatment. All are essentially non-magnetic. The most common types of Austenitic stainless are the UNS S20000 and S30000 alloys. They are generally considered the most weldable of the stainless steels.

Austenitic Filler Metal Selection
AISI Steel Recommended Filler Metal Alternate Filler Metal
201, 202, 205 240 308, 347, 309
301, 302, 302B 308 347, 309
304, 304L 308L 347, 309
304H 308H 347, 309
303, 303SE 312 309MO
316, 309S 309 309CB, 310
310, 310S, 314 310 310CB, 310MO
316, 316L 316, 316L 309MO, 317
316H 316H 309MO, 317
317 317 317L, 309MO, 318
321 347 309CB, 310CB, 321
347, 348, 347H 347 309CB, 310CB
320 320LR 320
330 330 -
904L 385 -

Ferritic

The Ferritic group is straight grade chrome grades and come under the type 400 series. They cannot be hardened by heat treating and only moderately by cold working. Precautions are required in the welding process to minimize embrittlement and cracking.

Feretic Filler Metal Selection
AISI Steel Recommended Filler Metal Alternate Filler Metal
405 410 308L, 309, 410NM
409 409CB 430, 309LSi
430 430 308L, 309L
442 308L 309L
446 308L 309L

Martensitic

The Martensitic group is also classified under the 400 series. The principal alloying element is chrome, with carbon added to produce high levels of strength and hardness after heat treatment. Both Martensitic and Ferritic types are magnetic. Similar precaution, including preheat is necessary in the welding process.

Martensitic Filler Metal Selection
AISI Steel Recommended Filler Metal Alternate Filler Metal
403 410 308, 347, 309
410, 410S 410 308, 347, 309
414 410 410NM, 309
420 420 309
431 410 309, 310
440A 312 309

Precipitation Hardening and Duplex

These unique grades were designed for specific applications. Care should be exercised in the welding process to select the proper filler metal and welding procedures.

Precipitation Hardening Filler Metal Selection
AISI Steel Recommended Filler Metal Alternate Filler Metal
17-4 PH 630 308, 309
15-5 PH 630 -
13-8 MO 13-8 MO -
17-7 P 17-7 PH -
Duplex Filler Metal Selection
AISI Steel Recommended Filler Metal Alternate Filler Metal
2205 2209 -
225 2553 -
CD-4MCU 2553 -