JQ.YR402 Gas-shielded Flux-cored Welding Wire

JQ.YR402

GB：E601T1-B3
AWS：E91T1-B3
Current：Suitable for welding 2.25��Cr��1��Mo steel below 520��.
Main Applications：

JQ.YR402

According with GB/T 17493-1998 E601T1-B3
Corresponding with AWS A5.29 E91T1-B3
JIS Z3318 YF2CM-C

Introduction: It is a kind of gas-shielded flux-cored welding wire for heat-resistant steel. JQ.YR302 is a kind of titania type flux-cored welding wire with acid slag system and metal powder core. It has excellent welding performance, fewer spatters, stable arc, good slag detachability, beautiful appearance of weld and high welding efficiency. All-position welding.

Uses: Suitable for welding 2.25％Cr－1％Mo steel below 520℃.

Chemical Composition of Deposited Metal (%)(CO₂Shielding Gas)

Chemical Composition	C	Mn	Si	S	P	Mo	Cr
Guarantee Value	≤0.12	≤1.25	≤0.80	≤0.03	≤0.03	0.90~1.20	2.00~2.50
General Result	0.07	0.85	0.34	0.014	0.014	0.98	2.20

Mechanical Properties of Deposited Metal

Test Item	R_m(MPa)	R_eL或R_p0.2(Mpa)	A(%)
Guarantee Value	620-760	≥540	≥17
General Result	660	570	22

Reference Current (DC+)

Welding Position	Wire Diameter(mm)	Welding Current(A)	Welding Voltage(V)	Flow Rate(L/min)
Downhand Welding	φ1.2	120～300	24～32	20
Downhand Welding	φ1.6	200～400	22～34	20
Vertical Welding	φ1.2	150～250	24～28	20

Instructions:
1.The oil stains and rust on the weldments should be cleared away.
2.When welding, the gas flow rate is generally 20～25L/min.
3.When welding with flux-cored welding wires, the extension elongation should be 15～25mm.
4.The humidity of the welding wire storerooms should be preserved below 60%.
5.It is not suitable for non-vacuum-packed welding wires to be stored for more than half a year, and it is not suitable for vacuum-packed welding wires to be stored for more than a year.