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Welding Rod Series
Grade		Chemical composition of deposited metal (%)						performance
Grade		Chemical composition of deposited metal (%)						Mechanical behavior	standard value	guarantee value
FirmKim	FK422	Alloy standard	C: ≤0.2	Mn≤1.2	Si≤1.0	P≤0.04	S≤0.035	RM(MPa)	430-560	480
GB/T	E4303	Example value	0.065	0.45	0.17	0.021	0.018	"ROL/Rp0.2(MPa)"	≥330	390
AWS	/	Alloy standard	Ni < 0.3	Cr≤0.2	Mo≤0.3	V≤0.08		A(% )	≥22	28
AWS	/	guarantee value	0.015	0.008	0.006	0.01		KV2(J )	≥47/-20	82
Product description and main applications		FK422 is a carbon steel electrode with a titanium-calcium coating. It can be used for both AC and DC, and can be used for all-position welding. It has excellent welding process performance and good mechanical properties; stable arc, small spatter, easy to remove slag, and easy to start arc again; beautiful welding seam shape, welding wave can be wide, narrow, thin, thick, loose welding, efficient High; used for welding important low-carbon steel structures and low-alloy steel structures with low strength grades, such as Q235.09MnV, 09Mn2, etc.


Grade		Chemical composition of deposited metal (%)						performance
Grade		Chemical composition of deposited metal (%)						Mechanical behavior	standard value	guarantee value
FirmKim	FK502	Alloy standard	C ≤0.15	Mn≤1.25	Si≤0.90	P≤0.04	S≤0.035	RM(MPa)	≥490	530
GB/T	E5003	Example value	0.1	0.76	0.27	0.022	0.015	"ROL/Rp0.2 (MPa)"	≥400	450
AWS	/	Alloy standard	Ni≤0.3	Cr≤0.2	Mo≤0.3	V≤0.08		A(% )	≥20	24
AWS	/	guarantee value	0.025	0.036	0.01	0.008		KV2(J )	≥47	98
Product description and main applications		FK502 is a carbon steel electrode with titanium calcium coating. Both AC and DC can be used for all-position welding. It has excellent welding process performance and mechanical properties, stable arc, little spatter, and easy slag removal; beautiful welding seam shape; mainly used for welding low-gold steel structures with tensile strength of 490MPa, such as rebar for construction and other 16Mn Welding of structural steel.


Grade		Chemical composition of deposited metal (%)						Reference current (AC, DC+)			Precautions.
FirmKim	FK501-1	Alloy standard	C ≤1.10	Mn11.00~ 18.002	Si≤1.30	Mo≤2.50	Total amount of other elements	Electrode diameter(mm )	Φ3.2	Φ5.0	1. The electrode must be baked at 300~350~C for 1h before welding. 2. For surfacing welded high-manganese steel workpieces, the fatigue layer should be removed in advance or treated with water toughening or chromium-manganese steel welding rods (such as D277) should be used for bottoming. 3. There is a lot of yellow smoke during surfacing. Pay attention to strengthen the ventilation shaft to operate at the upwind position
GB/T	T494T1-1C	Example value	0.65	1.28	0.35	0.011	≤1.00	Welding current (A)	70~90	150~180
AWS	E71T1-C1
Product description and main applications		FK266 is a low-hydrogen potassium type coating high-manganese steel surfacing electrode, which can be used for both AC and DC (when AC welding, the no-load voltage is not less than 70V), and small current should be used for surfacing. Narrow bead, hammer or water quench immediately when it is red hot: to reduce the tendency of cracks. The surfacing metal is austenitic high manganese steel, which has the characteristics of work hardening, toughness and wear resistance. Because Mo is added to the weld metal. Thereby improving the crack resistance and wear resistance; suitable for surfacing welding of various crushers, high manganese steel rails, buckets, pushers and other parts that are subject to impact and easy to wear.


Grade		Chemical composition of deposited metal (%)						Reference current (AC, DC+)			Precautions
FirmKim	FK022	Alloy standard	C ≤0.04	Mn：0.5-2.5	Si≤1	P≤0.04	S≤0.030	RM(MPa)	≥490	550	1. The electrode must be baked at 300C for 1 hour before welding, and used as it is baked. 2. Try to use small current and short arc welding when welding 3. The weldments must be cleaned of rust, oil stains, moisture and other impurities before welding.
GB/T	E316L-16	Example value	0.024	0.96	0.55	0.02	0.004	RM(MPa)	≥490	550
AWS	E316L-16	Alloy standard	Ni：11-14	Cr：17-20	Mo: 2.0-3.0	Cu≤0.75		A(% )	≥18	28
AWS	E316L-16	guarantee value	13.2	18	2.2	0.035		KV2(J )	≥27	130
Product description and main applications		FK022 rutile type coating of ultra-low carbon stainless steel electrode, its weld metal has good mechanical properties and resistance to intergranular corrosion, especially at -196C has good impact toughness AC and DC dual-purpose electrode, redness resistance, soft arc, Beautiful shape, good slag removal, small spatter, excellent all-position welding performance, and good operability; used for welding 316L austenitic stainless steel piping systems that serve at -196C ultra-low temperature. Suitable for welding of liquefied natural gas (LNG) storage tanks and pipelines, and cryogenic pressure equipment.

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Tel: 0571-88780081
Mail: Firmkim@cn-huaguang.com
Fax: 0571-887 80081
Post code: 311112
Add: No. 7 Yaojia Road, Liangzhu Street, Yuhang District, Hangzhou City, Zhejiang Province (Huaguang New Materials)

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