CNC machining is the process of producing precision parts with exacting tolerances. It's typically used for aerospace, automotive, agricultural, electronic, energy, medical and military. As advanced technology continues to develop and techniques improved, in order to make more precision cnc milling parts, choosing the right material for cnc machining is very important. Do you think all materials can be processed with precision cnc machining?

The answer is NO. Generally speaking, CNC machining material used for precision CNC machining need to have excellent dimensional stability, machinability, easy for processing, corrosion resistance, and impact resistance. If the hardness of some raw materials is too high, exceeding the hardness of the processed parts, the parts may crack. Therefore, these raw cnc materials are not suitable for CNC precision processing, but they are good for laser cutting.

In this article, we will discuss the various metal CNC materials that are suitable for CNC machining.

Outline

1.What is CNC Machining ?

2.What is the CNC Machining Materials?

3.How to select the right Material ?

4.Metal materials suitable for Machining

(1)Aluminum

(2)Brass

(3)Cooper

(4)Stainless Steel

(5)Steel

(6)Titanium

1. What is CNC Machining?

CNC machining is referred to as machining, traditional machining are manually operated ordinary machine tool operations, processing by hand shaking the mechanical tool cutting metal, by eye with calipers and other tools to measure the accuracy of the product. Modern industry has long used the computer digital control of machine tools for operations, CNC machine tools can be in accordance with the technical staff pre-programmed automatically on any product and parts directly processed. This is what we call "CNC machining". CNC machining is widely used in all mechanical processing of any field, but also the development trend of mold processing and important and necessary technical means. "CNC" is the English Computerized Numerical Control (computer digital control) abbreviation. It is the use of digital information on the machine tool movement and machining process control of a method.

2. What is the CNC Machining Materials?

As the name entails, CNC machining materials are compatible with the CNC machined process. In CNC machining there quite a lot of material properties that make machining processes easy for projects and the project owners. Examples of such properties include machinability, yield strength, tensile strength, hardness, and many more. When these factors are considered, CNC machining becomes easy to carry out.

3. How to select the right Material?

There are hundreds of metal alloys available for CNC milling and turning, and one of them for your next project depends on various factors including price, weight, machinability, strength, corrosion resistance, and appearance.

4. Metal materials suitable for CNC Machining services

(1) CNC Machining Aluminum Material

①Aluminum 6061-T6

Aluminum alloys 6061 is a heat-strengthened alloy cnc material with good formability, weldability, machinability, and medium strength. It can still maintain good operability after annealing. It is a very common materials used in a lot of industries.

Chemical Composition

Cu	Mn	Mg	Zn	Cr	Ti	Si	Fe	Al
0.15～0.4	0.15	0.8～1.2	0.25	0.04～0.35	0.15	0.4～0.8	0.7	Balance

Mechanical properties

Ultimate Tensile Strength	Tensile Yield Strength	Elongation	Modulus Elasticity	Bending Ultimate Strength	Bearing Yield Strength	Poisson's Ratio	Fatigue Strength
124 MPa	55.2 MPa	25.00%	68.9 GPa	228 MPa	103MPa	0.33	62.1MPa

Comparison Table in Various Countries

China	ISO	USA	UK	JAPAN	FRANCE	GERMANY	RUSSIA
LD30	AlMg1SiCu	6061	H20	A6061	6061	AlMglSiCu	AII33

Heat treatment process

Rapid annealing	heating temperature 350～410℃; depending on the effective thickness of the material, the holding time is between 30～120min; air or water cooling.
High-temperature annealing	heating temperature 350～500℃; when the thickness of the finished product is ≥6mm, the holding time is 10～30min, when it is less than 6mm, it will be hot through; air-cooled.
Low temperature annealing	heating temperature 150～250℃; holding time 2～3h; air or water cooling.

②Aluminum 6063-T6

Aluminum alloys 6063 is widely used in the frame of building aluminum doors and windows and curtain walls. In order to ensure that doors, windows and curtain walls have high wind pressure resistance, assembly performance, lightweight materials and decoration performance, the comprehensive performance requirements of aluminum alloy profiles are far higher than those in industry Profile standards.

Chemical Composition

Cu	Mn	Mg	Zn	Cr	Ti	Si	Fe	Al
0.15～0.4	0.15	0.8～1.2	0.25	0.04～0.35	0.15	0.4～0.8	0.7	Balance

Mechanical properties

Tensile strength σb (MPa)	Elongation stress σp0.2 (MPa)	Elongation δ5 (%)
≥205	≥170	≥7

Comparison Table in Various Countries

China	ISO	USA	UK	JAPAN	FRANCE	GERMANY	RUSSIA
LD31	AlMg0.7Si	6063	H19	A6063		AlMgSi0.5	AII31

③Aluminum 7075-T6

he main alloying element of Aluminum 7075-T6 is zinc, which has high strength, good mechanical properties and anodize reaction. It is mainly used to manufacture aircraft structures and other high stress loads structural parts that require high strength and strong lightweight materials, such as aircraft upper and lower wing panels, stringers, etc. After solution treatment, the plasticity is good, the heat treatment strengthening effect is good, it has good strength below 150 degrees, and has particularly good low operating temperature strength, poor welding performance, and stress corrosion cracking tendency. It is also widely used in mold processing, mechanical equipment, tooling, and fixtures. The material costs for 7075 is higher than alu6061.

Chemical Composition

Cu	Mn	Mg	Zn	Cr	Ti	Si	Fe	Al
1.2-2.0	0.3	2.1-2.9	5.1-6.1	0.4	0.06	0.4	0.5	Balance

Typical Mechanical

Weldability	Machinability	Corrosion resistance	Conductivity 20℃(68℉) 　　 (%IACS)	density
not good	very good	generally	40-50	2.85

Physical Properties

Tensile Strength 　

(25°C MPa)

Yield Strength 　 (25°C MPa)

Hardness 500kg force 10mm ball

Elongation 1.6mm (1/16in) thickness

Maximum Shear Stress

570

505

150

11

330

Comparison Table in Various Countries

China	ISO	USA	UK	JAPAN	FRANCE	GERMANY	RUSSIA
LC9	AlZn5.5MgCu	6063	L95	A7075	7075	AlZnMgCu1.5

④Aluminum 6082

Aluminum 6082 is a heat-strengthened alloy cnc material with good formability, weldability, and machinability. It also has medium strength and can still maintain good operability after annealing. Both 6082 and 6061 belong to aluminum-magnesium-silicon heat-treatable and strengthened alloys, with good extrusion processing and forging properties, good anodized and lightweight certain materials. After 6082 extrusions quenching and artificial aging, HBS≥80; 6061 is ≥95. It is suitable for manufacturing process aircraft landing pads, boats, building components, bicycles, auto parts, optical instruments, and aircraft components.

Chemical Composition

Cu	Mn	Mg	Zn	Cr	Ti	Si	Fe	Al
0.1	0.4-1.0	0.6～1.2	0.20	0.25	0.10	0.7～1.3	0.5	Balance

Mechanical properties

Tensile strength σb (MPa)	Elongation stress σp0.2 (MPa)	Elongation δ5 (%)
≥205	≥170	≥7

Comparison Table in Various Countries

China	ISO	USA	UK	JAPAN	FRANCE	GERMANY	RUSSIA
LD31	Al SiMgMn	6082	AW-6082	A6082	6082	AlMgSi	AII35

⑤Aluminum 5052

Aluminum 5052 is the most widely used anti-rust aluminum cnc material. This alloy has high strength, especially fatigue resistance: high plasticity a, it cannot be strengthened by heat treatment, and the plasticity is good when hardened by cold work, but when hardened by cold work. Low plasticity, good weldability, poor machinability, and can be polished.

Chemical Composition

Cu	Mn	Mg	Zn	Cr	Ti	Si	Fe	Al
≤0.10	≤0.10	2.2~2.8	≤0.10	0.15～0.35	0.10	≤0.25	≤0.40	Balance

Mechanical properties

Tensile strength σb (MPa)	Elongation stress σp0.2 (GPa)	Yield Strength σ0.2 (MPa)
170～305	69.3～70.7	≥90

Comparison Table in Various Countries

China	ISO	USA	UK	JAPAN	FRANCE	GERMANY	RUSSIA
LF2	Al Mg2.5	5052	N4	A5052	5052	Al Mg2.5	AMr

⑥Aluminum 5083

Aluminum 5083 belongs to the Al-Mg series alloy with excellent weldability, good cold workability, and medium strength. The main alloying element of 5083 is magnesium, which has good forming performance, weldability, and medium strength. It is used to manufacture aircraft fuel tanks, oil pipes, and sheet metal alloys parts of transportation vehicles and ships, meters, streetlamp brackets and rivets, Hardware products, electrical enclosures, etc.

Chemical Composition

Cu	Mn	Mg	Zn	Cr	Ti	Si	Fe	Al
≤0.10	0.40～1.0	4.0～4.9	≤0.25	0.05～0.25	≤0.15	≤0.40	≤0.40	Balance

Mechanical properties

Elongation δ5 (%)	Elongation δ10 (%)	Yield Strength σ0.2 (MPa)
≥12	≥20	≥110

⑦Aluminum 2024-T3

Aluminum 2024 is a kind of high-strength hard aluminum, which can be strengthened by heat treatment. It has medium plasticity in quenched and just quenched conditions. It has good spot welding and tends to form intergranular cracks when using gas welding.

Chemical Composition

Cu	Mn	Mg	Zn	Cr	Ti	Si	Fe	Al
3.8-4.9	0.30～1.0	1.2~1.8	≤0.25	0.1	≤0.15	0.5	0	Balance

Mechanical properties

Tensile strength σb (MPa)	Elongation δ10 (%)	Yield Strength σ0.2 (MPa)
≥390	≥20	≥245

Comparison Table in Various Countries

China	ISO	USA	UK	JAPAN	FRANCE	GERMANY	RUSSIA
LY12	AlCu4Mg1	2024	GB-24S	A2024	2024	Al CuMg2	AII16

(2) CNC Machining Brass material

①Brass C37700

Brass HPB59(C37700) lead brass is a widely used lead brass. It is characterized by good machinability, good mechanical properties, can withstand cold and hot pressure processing, easy to weld, good brazing, and good for general corrosion. Stability, but with a tendency to corrode and crack, it is mainly used for air-conditioning valves, hardware machinery, etc.

Chemical Composition

Cu	Ni	Fe	Pb	Sb	Zn	Impurity
57.0-60.0	1	≤0.5	0.8-1.9	<0.01	Remain	1

Mechanical properties

Tensile strength σb (MPa)	Elongation δ10 (%)	Elongation δ5 (%)
≥420	≥10	≥12

Comparison Table in Various Countries

China	GERMANY	EUROPE	ISO	USA	JAPAN
HPB59	CuZn39Pb2	CW612N	CuZn39Pb2	C37700	C3771

②Brass C36000

C36000 is a lead brass defined by the American ASTM standard. Used in watch parts, automobiles, tractors and general machine parts. Lead brass has excellent cutting performance and high anti-friction performance. It is used for clock and watch structural parts and automobile and tractor parts.

Chemical Composition

Cu	Fe	Pb	Impurity	Zn
60～63	≤0.35	2.5～3.7	≤0.5	Remain

Comparison Table in Various Countries

China	GERMANY	EUROPE	ISO	USA	JAPAN
HPB63	CuZn36Pb2	CW603N	CuZn36Pb2	C36000

③ Brass C26000

C26000 brass has very good plasticity (the best among brass) and high strength, good machinability, easy welding, very stable to general corrosion, but easy to produce corrosion cracking.

Chemical Composition

Cu	Fe	Pb	Impurity	Zn	P	Sb	Bi
68.5～71.5	≤0.10	≤0.03	≤0.3	Remain	≤0.01	≤0.005	≤0.002

Mechanical properties

Tensile strength σb (MPa)	Elongation δ10 (%)	Hardness
340～460	≥25	85～145HV

Comparison Table in Various Countries

China	GERMANY	EUROPE	ISO	USA	JAPAN
HPB70	CuZn30	CW505L	CuZn30	C26000	C2600

(3) CNC Machining Copper material

C11000 has good electrical conductivity, thermal conductivity, and processing properties, and can be welded and fiber welded. Contains less impurities that reduce electrical conductivity and thermal conductivity. A trace of oxygen has little effect on electrical conductivity, thermal conductivity, and processing properties, but it is easy to cause "hydrogen disease".

Chemical Composition

Cu+Ag	Bi	Sb	As
99.9	0.001	0.002	0.002

Mechanical properties

Tensile strength: (Rm/MPa)	Rockwell hardness: (HRF)	Elongation: (%)
≥295	≥65	≥3

Comparison Table in Various Countries

China	GERMANY	EUROPE	ISO	USA	JAPAN
T2	2.0065	CW004A	Cu-EPT	C11000	C1100

(4) CNC Machining Stainless Steel Material

①Stainless Steel 303

SS303 is an austenitic type of free-cutting stainless and wear-resistant acid steel containing sulfur and selenium respectively. It is used in occasions that require free cutting and high surface finish.

Chemical Composition

C %	Si %	Mn %	P %	S %	Cr %	Ni %	Mo %
≤0.15	≤1.00	≤2.00	≤0.20	≤ 0.15	17.00-19.00	8.00-10.00	≤0.6

Mechanical properties

Tensile strength: (Rm/MPa)	Conditional yield strength σ0.2 (MPa)	Elongation: (%)	Reduction of area ψ (%)	Hardness
≥520	≥205	≥40	≥50	HB≤187HB; HRC≤90HRB; HV≤200HV

Comparison Table in Various Countries

China	USA	JAPAN	UK	FRANCE	GERMANY	RUSSIA
Y1Cr18Ni9	303	SUS303	1.4305

②Stainless Steel 304

SS304 is a common material in stainless steel, with a density of 7.93 g/cm³, which is also called 18-8 stainless steel in the industry. High operating temperatures resistance of 800℃, good processing performance, high toughness, widely used in industry and furniture decoration industry and food and medical industry.

Chemical Composition

C %	Si %	Mn %	P %	S %	Cr %	Ni %	C %
≤0.08	≤0.030	≤2.00	≤0.045	≤0.030	18.0–20.0	8.0-11.0	≤0.08

Mechanical properties

Tensile strength: (Rm/MPa)	Conditional yield strength σ0.2 (MPa)	Elongation: (%)	Hardness	Melting point (℃)	Specific heat capacity (0~100℃, KJ·kg-1K-1)	Linear expansion coefficient (10-6·K-1)	Resistivity (20℃, 10-6Ω·m2/m)
≥515-1035	≥205	≥40	≤201HBW; ≤92HRB; ≤210HV	1398~1454	0.50	(0~100℃) 17.2, (0~500℃) 18.4	0.73

Comparison Table in Various Countries

China	USA	JAPAN	UK	FRANCE	GERMANY	RUSSIA
0Cr18Ni9	304	SUS304	1.4301			08X18H10

③Stainless Steel 316

Due to the addition of Mo element, 316 stainless steel has greatly improved its corrosion resistant and high temperature strength. The high temperature resistance can reach 1200-1300 degrees, and it can be used under harsh conditions.

Chemical Composition

C %	Si %	Mn %	P %	S %	Cr %	Ni %	Mo %
≤0.08	≤1.00	≤2.00	≤0.045	≤0.030	16.00~18.00	10.00~14.00	2.00~3.00

Mechanical properties

Tensile strength: (Rm/MPa)	Conditional yield strength σ0.2 (MPa)	Elongation: (%)	Reduction of area ψ (%)
≥ 620	≥310	≥30	≥40

Comparison Table in Various Countries

China	USA	JAPAN	UK	FRANCE	GERMANY	RUSSIA
0Cr17Ni12Mo2	316	SUS316	1.4401			-

④Stainless Steel 420

SS420 is a martensitic stainless steel cnc materials with certain wear resistance and high hardness. It is the most suitable material for all kinds of precision machinery, bearings, electrical, equipment, instruments, meters, transportation tools, household appliances, etc. It is mostly used to manufacture parts that are resistant to atmospheric, water vapor, water and oxidizing acid corrosion. This will ned the heat treated to improve its hardness.

Chemical Composition

C %	Si %	Mn %	P %	S %	Cr %	Ni %	Mo %
0.16~0.25	≤1.00	≤1.00	≤0.04	≤0.030	12.00~14.00	≤0.75	0

Mechanical properties

Tensile strength: (Rm/MPa)

Conditional yield strength σ0.2 (MPa)

Elongation: (%)

Reduction of area ψ (%)

Impact energy Akv (J)

Hardness

quenched and tempered,

≥ 635

quenched and tempered,

≥440

quenching and tempering,

≥20

quenching and tempering, ≥50

quenching and tempering, ≥63

annealing, ≤223HB; quenching and tempering, ≥192HB

Comparison Table in Various Countries

China	USA	JAPAN	UK	FRANCE	GERMANY	RUSSIA
3Cr13	420	SUS420J2	1.4028			30X13

⑤ Stainless Steel 430

SS 430 is a general-purpose steel with good corrosion resistance. It has better thermal conductivity than austenite, a smaller thermal expansion coefficient than austenite, heat fatigue resistance, addition of stabilizing element titanium, and good mechanical properties of the weld.

Chemical Composition

C %	Si %	Mn %	P %	S %	Cr %	Ni %	Mo %
≤0.12	≤0.75	≤1.00	≤0.04	≤0.030	16.00~18.00	≤0.6	0

Mechanical properties

Density	Melting point	Expansion coefficient	Young's modulus	Rigid modulus
7.75g/cm	1427℃	mm/℃(at 20-100℃)	kN/mm	kN/mm

Comparison Table in Various Countries

China	USA	JAPAN	UK	FRANCE	GERMANY	RUSSIA
1Cr17	430	SUS430	1.4016			--

⑥Stainless Steel 440C

SS 440 is a martensitic stainless steel. The carbon content is 1.0%, and the chromium content is 16-18%. It has strong rust resistance and is a high-quality stainless steel. This will need the heat treated to improve its hardness.

Chemical Composition

C %	Si %	Mn %	P %	S %	Cr %	Ni %	Mo %
0.95～1.20	≤1.00	≤1.00	≤0.035	≤0.030	16.00~18.00	≤0.6	0

Mechanical properties

Hardness	Quenching and tempering	E Internal stress	Tensile strength
Annealed, ≤269HB;	≥58HRC	(250 N/mm2)	(560 N/mm2)

Comparison Table in Various Countries

China	USA	JAPAN	UK	FRANCE	GERMANY	RUSSIA
Y11Cr17	440F	SUS440F	-			--

⑦Stainless Steel 17-4PH

SS 17-4PH is a precipitation, hardening, martensitic stainless steel composed of copper, niobium/columbo.

Chemical Composition

C %	Si %	Mn %	P %	S %	Cr %	Ni %	Cu %
≤0.07	≤1.00	≤1.00	≤0.04	≤0.030	15.5~17.5	3.0~5.0	3.0~5.0

Mechanical properties

Tensile strength σb (MPa)	Conditional yield strength σ0.2 (MPa)	Elongation δ5 (%)	Reduction of area ψ (%)
aging at 480℃	aging at 480℃	aging at 480°C	aging at 480°C

Comparison Table in Various Countries

China	USA	JAPAN	UK	FRANCE	GERMANY	RUSSIA
0Cr17Ni4Cu4Nb	630	SUS630	1.4542			--

⑧Nitronic 60

Nitronic 60 is a high-tensile strength stainless steel. Compared with cobalt-containing and high-nickel alloys, Nitronic 60 stainless steel can achieve corrosion resistance and wear resistance at a very low cost. Its overall corrosion resistance is better than most stainless steel 304.

Chemical Composition

C %	Si %	Mn %	P %	S %	Cr %	Ni %	Cu %
≤0.1	≤1.00	≤1.00	≤0.04	0.035-0.045	16-18	8-9	3.0~5.0

(5) CNC Machining Steel Material

①Steel 1010

Carbon Steel 1010 is a high-quality carbon steel with low mechanical strength, good plasticity and toughness. It is easy to be molded under cold conditions, easy to cut and process, and has good welding performance. To improve the surface hardness, it can be carburized and cyanided.

Chemical Composition

C %	Si %	Mn %	P %	S %	Cr %	Ni %	Cu
0.08～0.13	0.15～0.35	0.30～0.60	≤0.040	≤0.050	≤0.20	≤0.25	≤0.25

Mechanical properties

Tensile strength σb (MPa)	Conditional yield strength σ0.2 (MPa)	Elongation δ5 (%)	Reduction of area ψ (%)	Hardness
≥335	≥205	≥31	≥55	not heat-treated, ≤137HB

②Steel 1018

Mild Steel 1018 a kind of low carbon permeability steel, due to the good corrosion resistance, high strength and high temperature restrictions, is widely used in pistons, screws, drive shafts, machine tools, springs.

Chemical Composition

C %	Si %	Mn %	P %	S %	Cr %	Ni %	Cu
0.17～0.24	0.17～0.37	0.70～1.00	≤0.035	≤0.035	≤0.25	≤0.25	≤0.25

Mechanical properties

Tensile strength σb (MPa)	Conditional yield strength σ0.2 (MPa)	Elongation δ5 (%)	Reduction of area ψ (%)	Hardness
≥335	≥205	≥31	≥55	not heat-treated, ≤137HB

③Steel 1215

Mild Steel 1215 is an environmentally friendly material. Compared with 12L14, it contains no lead and no harmful substances to the environment and has good machinability. It is suitable for general electroplating shafts, cutting cnc material and general parts.

Chemical Composition

C %	Si %	Mn %	P %	S %	Pb %	N %	Fe
0.06-0.10	<0.15	0.90-1.10	0.05-0.08	0.27-0.35	0-0.35	0.002-0.007	Remain

Mechanical properties

Tensile strength σb (MPa)	Area shrinkage ψ (%)	Elongation δ5 (%)
390～540	(hot rolled)≥36	(hot rolled)≥22; 　(cold rolled)≥7.0,

④Alloy Steel 1045

Carbon Steel 1045 is a high-strength medium-carbon high-quality steel. Because of its poor hardenability, it is generally used in a normalized state. When the mechanical performance requirements are high, it is quenched and tempered. It is used to manufacture parts with high strength requirements, such as gears, shafts, piston pins, etc. and mechanically processed parts, forgings, stamping parts and bolts, nuts, and pipe joints that are not very stressed.

Chemical Composition

C %	Si %	Mn %	P %	S %	Cr%	Ni %	Cu%
0.43～0.50	0.17～0.37	0.60～0.90	≤0.040	≤0.050	≤0.25	≤0.25	≤0.25

Mechanical properties

Tensile strength σb (MPa)	Conditional yield strength σ0.2 (MPa)	Elongation δ5 (%)	Reduction of area ψ (%)	Hardness
≥600(61)	≥355(36)	≥16	≥≥40	unheated, ≤229HB; annealed steel, ≤197HB

⑤Steel Alloy 4140

Carbon Steel 4140 is an alloy structural steel with high strength, hardenability, good toughness, and small deformation during quenching.

Chemical Composition

C %	Si %	Mn %	P %	S %	Cr%	Ni %	Cu%	Mo
0.38～0.43	0.15～0.35	0.75～1.00	≤0.030	≤0.040	0.80～1.10	≤0.030	≤0.030	0.15～0.25

Mechanical properties

Reduction of area ψ (%)	Impact energy Akv (J)	Impact toughness value αkv (J/cm2)	Hardness
≥45	≥63	≥78(8)	≤217HB

⑥Steel Alloy 4130

4130 structural steel has high strength and toughness, high hardenability, and the critical hardenability diameter in oil is 15～70mm; the thermal resistance of steel is also good, with sufficient high temperature strength below 500℃, but at 550℃ Its strength is significantly reduced; when the alloy element is at the lower limit, the welding is quite good, but when the alloy element is close to the upper limit, the weldability is medium, and it needs to be preheated to above 175℃ before welding; the steel has good machinability and medium plasticity during cold deformation.

Chemical Composition

C %	Si %	Mn %	P %	S %	Cr%	Ni %	Cu%	Mo
0.28～0.33	0.15～0.35	0.40～0.60	≤0.035	≤0.040	0.80～1.10	≤0.030	≤0.030	0.15～0.25

Mechanical properties

Tensile strength σb (MPa)	Yield strength σs (MPa)	Elongation δ5 (%)	Reduction of area ψ (%)	Impact energy Akv (J)	Hardness
≥930(95)	≥785(80)	≥12	≥50	≥63	≤229HB

⑦Tool Steel D2

D2 mold steel is highly wear-resistant, slightly deformed cold-worked mold steel, air-hardened tool steel, with a carbon content of up to 1.5%, a chromium content of up to 11.5%, and a hardness of up to 60HRC after heat treatment.

Chemical Composition

C %	Si %	Mn %	Mo	V %	Cr%
1.40-1.60	0.30-0.50	0.30-0.50	0.70-1.20	0.8	11.0-13.0

(6) CNC Machining Titanium Material

Titanium Grade 5 Stronger than Grade 2, equally corrosion-resistant, and excellent biocompatibility. Titanium alloy of cnc material density is generally around 4.5g/cm3, only 60% of steel, titanium strength is only close to the strength of ordinary steel, some high strength titanium alloy exceeds the strength of many alloys structural steel.

Chemical Composition

C %	N %	H %	O %	Fe %	Ni %
0.08～0.13	≤0.05	≤0.015	≤0.40	≤0.050	Balance

Before processing precision mechanical parts, we must pay attention to the density of the material. If high the density means a high hardness. If the hardness exceeds the hardness of the lathe tool, it cannot be cnc lathe machined, which will not only damage the parts, but also cause danger. So generally speaking, for cnc mechanical processing, the material quality must be lower than the hardness of the machine tool.So ntot all materials can be precisely processed,unless they are special materials or laser cutting.

Dongguan Worthy Hardware, founded in 1998 by Mr. Su, has been very professional at processing various materials.Worthy Hardware together with its technical team continuously optimizes our technology for optimal results . At present, our products are widely used in medical, communications, optoelectronics, kitchenware, aviation, automobiles, and other fields.We take pride in every project because it demonstrates that we care about quality and detail. Contact us for a try! We will not let you down.

Worthy Hardware is a CNC manufacturing and sheet metal fabrication company,including CNC machining services,CNC milling services, CNC turning services, laser cutting services and stamping services.Call us +86-76989919645 or email us [email protected] for more discounts for your projects.

Are all the metal materials suitable for CNC Machining?

Outline

1. What is CNC Machining?

2. What is the CNC Machining Materials?

3. How to select the right Material?

4. Metal materials suitable for CNC Machining services

①Aluminum 6061-T6

②Aluminum 6063-T6

③Aluminum 7075-T6

⑤Aluminum 5052

⑥Aluminum 5083

⑦Aluminum 2024-T3

①Brass C37700

②Brass C36000

③ Brass C26000

①Stainless Steel 303

②Stainless Steel 304

③Stainless Steel 316

④Stainless Steel 420

⑤ Stainless Steel 430

⑥Stainless Steel 440C

⑦Stainless Steel 17-4PH

⑧Nitronic 60

①Steel 1010

②Steel 1018

③Steel 1215

④Alloy Steel 1045

⑤Steel Alloy 4140

⑥Steel Alloy 4130

⑦Tool Steel D2