Tungsten Carbide Grits Copper Nickel Based Composite Welding Yd Rods for Downhole Tools

Product Description

 

Description:
1. YD Tungsten carbide composite welding rod is made of cemented carbide tips and Ni/Ag(Cu)alloy. The carbide tips always be tungsten carbide crushed grits, carbide wear inserts, like the carbide star shape inserts, carbide pyramid shape inserts, shark shape inserts and so on. Sometimes, the carbide tips can be tungsten carbide powder. The economy choice is tungsten carbide crushed grits. If you want to higher durable than carbide grits, carbide inserts is better. However the cemented carbide/crushed carbide with sharp edge has excellent wear resistance and cutting ability too.

2. The hardness is 89-91 HRA, we have two types of YD rod,the matrix alloy is mainly made from Cu,Zn or Cu,Zn,Ni(9-10%),Ni will make welding rods work better with more adhesion,so the rods with Cu,Zn,Ni matrix alloy will be more expensive than the rods without Ni.

3. In brief, most of the Composite rod made using crushed sintered Tungsten Carbide grains bonded with a bronze nickel matrix,(Cu 50 Zn 40 Ni 10) with a low melting point ( 870°C ).

4.It is mainly used to overlay the worn-out and cutting usage workpieces in oil&gas,mining,coal mining,geology,contruction and other industries, such as:milling shoes,wear shoes,centralizers,reamer,drill pipe joints,hydraulic cutter,scrapper blade plow planer,drill core,piling drilling,auger etc.
 

The grain sizes of the carbide grits:
1. 1/8-1/16 in. ( 3.2-1.6 mm )
2. 3/16-1/8 in. (4.8-3.2 mm)
3. 1/4-3/16 in. (6.3-4.8 mm)
4. 3/8-5/16 in. (9.5-7.9 mm)
5. 5/16-1/4 in. (7.9 -6.3 mm)
6. 3/8-1/4 in. (9.5-6.3 mm)
7. 1/2-5/16 in. (12.7-7.9 mm)
 

The grades of the composite rods:There are main grades depends on the different Proportion of the tungsten carbide grits

Grade	Chemical compositions(%)					Physical performance	Applications
		WC	Cu+Zn+Sn	Co
BT-Cu-30	64-67	30±2	3.8-4.2	Hardness: >160 HB TRS: >690MPa	Down hole tools Plungers Shafts Agricultural/mining equipment Vlaves Turbine Blades Tool joints Extruder barrels and screws
BT-Cu-40	53-56	40±2	4.6-4.8
BT-Cu-45	48-52	45±2	4.2-4.5
BT-Cu-50	44-48	50±2	3.8-4.2

Item	Carbide grits size			Apperance	Available width (mm)	Available length (mm)
		(mm)	(inch)
1	1.6-3.2	1/8-1/16	Bare or with fluxed-coating	(20-22 ) (18-20 ) (10-12)	280- 450
2	3.2-4.8	3/16-1/8
3	4.8-6.4	1/4-3/16
4	6.4-8.0	5/16-1/4
5	8.0-9.5	3/8-5/16
6	9.5-11.0	7/16-3/8
7	11.0-12.7	1/2-7/16

Sizes, unit weight, grits sizes can be OEM.

Composite welding rod has been used in oil drilling, mining and construction industry worldwide for its extra hardness and high wear resistant properties. The use is even spreading to more industries and gets greater uses.YD tungsten carbide rod has wear and cutting properties coupled by high-end weld ability and low fuming, allowing the material to use in stabilizers, reamers, drill pipe joints, construction drilling, hydraulic-cutter, pipe cutter blades, core bit, scraper, twist drill, milling and grinding shoes etc.

FAQ of Tungsten carbide composite rod
Q: Are you trading company or manufacturer ?
A: We are factory.
Q: How long is your delivery time?
A: Generally within 7 days if the goods are in stock. or it is 15-20 days if the goods are not in stock,

it is according to quantity.
Q: Do you provide samples ? is it free or extra ?
A: Yes, we could offer the sample for free charge but do not pay the cost of freight.
Q: What is your terms of payment ?
A: Payment<=1000 USD, 100% in advance. Payment>=1000 USD, 30% T/T in advance, balance before shipment. If you have another question, pls feel free to contact us as below: