SPW Product Catalogue 2019

CONSUMABLES CLASSIFICATION TABLES
AS/NZS ISO 17632:2006 Tubular Cored Electrodes for Gas Shielded and Non-Gas Shielded
Metal Arc Welding of Non-Alloy and Fine Grain Steels
AS/NZS ISO 17632 classifies Flux Cored Arc Welding (FCAW ) wires by using a series of letters and digits broken into alpha numeric groups, eg. B T 49
3 T12 I M A U H10
The following layout outlines this classification system in part only. For full details Thermadyne recommend you refer to the current published version
of AS/NZS ISO 17632, obtainable from the Standards Association of Australia.
B T 49 3 T12 I M A U H 10
6
B B System Classification – based on tensile strength and average impact energy of 27J of all-weld metal
T Indicates a Tubular cored electrode
49 Symbol for tensile properties by multi-run technique (see Table 1B)
3 Symbol for impact properties of all-weld metal or welded joint (see Table 3)
T 12Usability characteristics (see Table5B)
I Symbol for welding position (see Table 6B)
M Symbol for shielding gas: M = mixed gas; C = Carbon Dioxide; N = no external shielding gas
A Symbol indicating the condition of post-weld heat treatment under which the alll-weld metal test was conducted: A = as welded; P = post weld heat treated
U Optional symbl indicating that the deposit meets average 47J at the designated test temperature.
H 10
Symbol for the hydrogen content of deposited metal (see Table 7).
TABLE 1B – Symbol for tensile properties by multi-run technique
(classification by tensile strength and 27J impact energy)
Symbol Minimum yield strength MPa a Tensile strength MPa Minimum elongation %b
43 330 430 to 600 20
49 390 490 to 670 18
55 460 550 to 740 17
57 490 570 to 770 17
a.For yield strength the lower yield, ReL, is used when yielding occurs, otherwise the 0.2% proof strength, Rp0.2 Is used.
b. Gauge length is equal to five times the test specimen diameter.
TABLE 3 – Symbol for impact properties of all-weld metal or welded joint
Symbol Temperature for minimum average impact energy of 47Ja,b or 27Jc – °C
Za
No requirements
Ab or Yc +20
0 0
2 –20
3 –30
4 –40
5 –50
6 –60
7 –70
8 –80
9 –90
10 –100
a Only the symbol Z is used for electrodes for the single-run technique
b Classification by yield strength and 47J impact energy
c Classification by tensile strength and 27J impact energy
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