Tungsten Carbide Rods

The Tungsten Carbide Rods(also named as Cemented Carbide Rods), are used in making high quality carbide cutting tools for the machining of heat-resistant alloys and Ti alloy, such as end mill, drill, reamer.

1. Grade: ISO K05-K40
2. Dia: 2mm-50mm; Length: Standard or customized

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H6 Precision Ground Tungsten Carbide Rod

Unground Tungsten Carbide Rods Blanks

Grade Performances of Tungten Carbide Rod

Type	Grade	ISO	Grain Size of Wc	Content of Co	Density	Hardness	TRS(/MPa)
For Cutting	CF12	K30-K40	0.6μm	12%	14.1g/cm³	HRA92.3	3800
	CF10	K20-K30	0.8μm	10%	14.4g/cm³	HRA91.8	3600
	CF6UF	K10	0.4μm	6%	14.85g/cm³	HRA94	3800
	CF8UF	K20	0.4μm	8%	14.6g/cm³	HRA93.2	3800
For Stamping	CFK3	/	0.8-1.0μm	13%	14.06g/cm³	HRA90.5-91	3600
For Stamping	F7	/	1.0μm	15%	13.85g/cm³	HRA89-89.5	3800

Grade	Recommend Application
CF10	Stable performance fine grain size material, general purpose for steel, cast iron, aluminum, copper, heat-resistant alloy etc. Suitbale for making end mills, drills, reamers etc.
CF12	Having high wear-resistance and excellent shock-resistance, suitbale for milling and drilling stainless steel, hardened steel, aluminum alloy, nickel base alloy etc.
CF6UF	Super-fine grain size material, Suitable for machining aluminum-magnesium alloys, glass fiber, carbon fiber, wood, harden plastic etc. For making PCB micro tools and drills of other material.
CF8UF	Suitable for machining glass fiber, wood, titanium alloy, stainless steel, copper-aluminum alloy etc. For making drill, end mill, graver and micro-drill with diameter less than 0.8mm used for machining of PCB.

Diameter	Tolerance	Length	Tolerance	Diameter	Tolerance	Length	Tolerance
2.0	+0.15/+0.30	330	-0/+5.0	16.0	+0.30/+0.60	330	-0/+5.0
3.0	+0.15/+0.30	330	-0/+5.0	17.0	+0.30/+0.60	330	-0/+5.0
4.0	+0.25/+0.40	330	-0/+5.0	18.0	+0.30/+0.60	330	-0/+5.0
5.0	+0.25/+0.40	330	-0/+5.0	19.0	+0.30/+0.60	330	-0/+5.0
6.0	+0.25/+0.40	330	-0/+5.0	20.0	+0.30/+0.60	330	-0/+5.0
7.0	+0.25/+0.40	330	-0/+5.0	21.0	+0.30/+0.80	330	-0/+5.0
8.0	+0.25/+0.40	330	-0/+5.0	22.0	+0.30/+0.80	330	-0/+5.0
9.0	+0.25/+0.40	330	-0/+5.0	23.0	+0.30/+0.80	330	-0/+5.0
10.0	+0.25/+0.40	330	-0/+5.0	24.0	+0.30/+0.80	330	-0/+5.0
11.0	+0.25/+0.50	330	-0/+5.0	25.0	+0.30/+0.80	330	-0/+5.0
12.0	+0.25/+0.50	330	-0/+5.0	26.0	+0.30/+0.80	330	-0/+5.0
13.0	+0.25/+0.50	330	-0/+5.0	27.0	+0.30/+0.80	330	-0/+5.0
14.0	+0.25/+0.50	330	-0/+5.0	28.0	+0.30/+0.80	330	-0/+5.0
15.0	+0.30/+0.60	330	-0/+5.0	29.0	+0.30/+0.80	330	-0/+5.0
Tolerance Grade For Ground Rods
Diameter (mm)		h5		h6		h7
0-3.0		0.004		0.006		0.01
3.001-6.0		0.005		0.008		0.012
6.001-10.0		0.006		0.009		0.015
10.001-17		0.008		0.011		0.018
18.001-30.0		0.009		0.013		0.021
30.001-50.0		0.011		0.016		0.025
Diameter ≤50mm, cut length can be supplied at customers’ request.

How does Tungsten Carbide Rods Manufacture

Wet Milling

We use Fine and Ultra Fine grain size of tungsten carbide powder. To control uniform grain size, wet milling is the first step.

Extrusion

Before extrusion, it shoud be dried and granulated. Extrusion is the main way to press long carbide rods like 300, 310,330mm. We manage diffrent diameter carbide rods with different extrusion machine to improve production efficiency. We can manage diameter from 2-30mm.

HIP Sintering

Sintered under 6Mpa pressuer and 1400℃+ .

Every batch after sintered, we will analysis firstly. Coercive force, Hardness, TRS, Density, Metallographic. To ensure the carbide rods we send to customer is qualified.

Cutting to short

The sintered tungsten carbide rods is 300-330mm standard length, The auto cutting machine was needed to cut it to standard or nonstandard short carbide rods as required like 45mm, 50mm, 150mm long etc.

The next step is Precision Grinding, we plan to add grind machine to service customer.