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Mild Steel Wire

MAXFIL- 31SB

AWS: SFA 5.20 E70T-5C

EN ISO CODE: 17632-B T493T5-0CA-K

Maxfil-31SB is a low alloy steel flux cored wire designed for welding of low & medium tensile steels structures subjected to high dynamic loading with superior impact properties. The wire is used with CO2 shielding and deposits radiographic quality weld metals. The wire produces thin & friable slag covering with shiny bead appearance. Weld deposit contains very low diffusible H2 (<4ml/100gm).

Maxfil-31SB is designed for single and multi-pass welding of similar composition steels and equivalent grade steels like; D/E/F/G grades of SA-414, Gr.60/Gr.65 steels of SA-515, Gr.60/Gr.65 steels of SA-516, etc. Suitable for ship-building, bridge construction, heavy machineries, pressure vessels & boilers, etc.

Approvals

CHEMICAL COMPOSITION OF ALL WELD METAL (%)

Element	C	Mn	Si	S	P	Cr	Ni	Mo	V	Cu
Range	0.12	1.75	0.90	0.03	0.03	0.20	0.50	0.30	0.08	0.35
Typical	0.064	1.45	0.44	0.011	0.016	0.012	0.020	0.045	0.001	0.005

MECHANICAL PROPERTIES OF ALL WELD METAL

Property	UTS	YS	El	CNV Impact (Joules)
	(MPa)	(MPa)	(L= 4d)%	at -30°C
Range	490-670	390 Min	22 Min	27 Min
Typical	565	480	26.0	75

WELDING PARAMETER: DC (+)

Diameter (mm)	Horizontal/ Flat	Horizontal/ Flat	Vertical UP	Vertical UP
	Volt, V	Current, A	Volt, V	Current, A
1.20	24-28	160-260	18-22	100-160
1.60	24-28	180-300	18-22	110-200

PACKING

STANDARD SIZE : 1.20 & 1.60mm. Other diameters may be available on request.

QUANTITY : Supplied approximately 15Kgs in a plastic spool. Each spool is sealed in an air tight polythene bag and then packed in a corrugated box.

SHIELDING GAS

Carbon Dioxide CO2 (100%) at flow rate 12-15 litres per minute.

WELDING POSITIONS

H, F, VU

Mild Steel Wire