Порошковая проволока марки ПП-Нп-25Х5ФМС (ООО «ТМ.ВЕЛТЕК»). ГОСТ 26101-84

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NAME

CLASSIFICATION INDEXES

GOST 26101-84

FCW-Sw-25Cr5VMoSi

Diametr: 1,6–3,6 mm

Protection: flux

Design: tubular, overlapping

General characteristics

Порошковая проволока марки ПП-Нп-25Х5ФМС предназначена для механизированной наплавки под флюсом деталей, работающих в условиях циклической термической нагрузки и интенсивного изнашивания. Рекомендуется для наплавки на постоянном токе обратной полярности.

Weldability

The Formation of the weld bead	good
Separation of Slag	good
Deposition Rate, kg/h	5-10
Addiction Weld metal Cracking	moderate
Consumption per 1 kg of wire Weld metal, kg	1.05-1.05
Weld metal Hardness (HRC for 3rd-4th layer, unless otherwise stated)	after surfacing 40-51

Recommended Flux Brand - АН-20

Recommended Surfacing Modes

Wire diameter, mm	Current, A	Voltage, V	Surfacing rate, m/h
1,6 – 1,8	160 – 240	27 – 29	10 - 15
2,0 – 2,2	180 – 260	28 – 30	12 - 18
2,4 – 2,6	200 – 320	29 – 31	15 - 20
2,8 – 3,0	260 – 350	30 – 32	18 - 23
3,2 – 3,4	300 – 400	30 – 32	20 – 25
3,6	340 - 450	31 - 33	20 - 25

Возможно, исполнение проволоки включительно до 6,0 мм.

Deposit composition (Weld metal), %

C	Cr	Mn	Si	Mo	V	S	P
0.25	5.4	0.7	1.1	1.2	0.45	0.04	0.04

Welding Alloys Analog

Brand of the wire	Distance, %	virobnik	C	Mn	Si	Cr	Mo	W	V	Ti
ROBODUR K 600-G (12)	1.13	Welding Alloys	0.5	1.2	0.7	6	0.7
ROBODUR K 650-G (13)	1.49	Welding Alloys	0.5	1.3	1.3	5.6	1.3	1.3	0.3
ROBOTOOL 58-G (21)	2.12	Welding Alloys	0.35	1.2	0.5	7	2.2			0.3
HARDFACE WLC (22)	2.35	Welding Alloys	0.25	2	0.8	6.5	1.5	1.5
HARDFACE W (23)	2.46	Welding Alloys	0.55	2	0.9	6.5	1.7	1.6

Properties of the weld metal

Износостойкость - высокая. Максимальная термическая выносливость. Возможна обработка режущим инструментом.

Technological features

Обязателен предварительный подогрев наплавляемого изделия до температуры 250-350°С. После наплавки среднетемпературный отпуск (400°С/ 1ч), затем замедленное охлаждение со скоростью 40 - 60°С/ч.

Application

Наплавка валков горячей прокатки [преимущественно валки чистовых клетей трубопрокатных и сортопрокатных станов], ножей горячей резки металла, штампов и прессового инструмента.

Delivery type (More)

The diameter of the wire	1,2–2,0 mm	2,4–3,2 mm		1,6–6,0 mm
Delivery	Magazine B-300; S-300	Molded Bay		Bay
Standard package	cardboard box	cartons	metal drums	metal drums
Weight, kg	10-15	20-55	50-70	50-70

Articles and website pages that mention this wire

25 Years in the World of Flux-Cored Wires
Decomposition of the USSR and emergence of independent republics in the post-Soviet space at the start of 1990s was accompanied by upsetting of industry operation, breaking up and loss of production links, mass stoppage of production. In 1993 in Kiev a joint Russian-Ukrainian Company «TM VeldTek Ltd.» was set up by the initiative of PWI staff. The Company was successfully developing in the direction of flux-cored wire manufacture. This was promoted by the support of «Dnepropetrovsk Hardware Production Association», where the management appreciated the idea of restoring flux-cored wire manufacturing in Ukraine.

Experience in application of electric arc surfacing with flux-cored wire at the enterprises of Ukraine
The surfacing using flux-cored wire finds a wide application in many branches of industry and, first of all, in the repair works. At the present time the largest manufacturer of flux-cored wires for surfacing in Ukraine is the enterprise «TM.VELTEK». In the present work the developments of this enterprise and the experience of their use in repair surfacing of rolls of rolling stands, CCM rollers, wheel cranes and also the rollers of straightening machines and critical parts of hydraulic supports of mining equipment are described