Metallic material- JCG Industrial Co., Ltd. Manufacturing Factory

Metal alloy
1. Iron-based alloys
1-1 Steel
1-1-1 low alloy steel
1-1-2 high alloy steel
1-2 cast iron
2. Non-ferrous alloys
2-1 Copper alloy
2-2 Precious metals
2-3 refractory metal
2-4 super alloy
2-5 light alloy
2-5-1 aluminum alloy
2-5-2 Magnesium alloy
2-5-3 titanium alloy

Steel material
1. Cold rolled steel sheet
Used for products that require high corrosion resistance, electro-galvanized/nickel after stamping

Types, uses, and chemical composition uses of cold rolled steel sheets
ｃlass	use	C	Mn	P	S
SPCC	Commercial	0.12	0.5	0.040	0.035
SPCD	Stretch	0.10	0.45	0.035	0.035
SPCE	Deep drawing	0.08	0.40	0.030	0.030

2. Galvanized steel sheet
Galvanized steel plate is a layer of zinc on the steel plate to make the steel corrosion resistant.
Electro-galvanized steel (EG) is used to make computer mainframes.
Hot-dip galvanized steel (GI) is cheaper and has higher anti-corrosion performance, so it is widely used.

3.Tinplate (thin plate)
Tinplate refers to a tin plate steel plate produced from low carbon steel.
From the primary cold-rolled sheet (CRS) and the secondary cold-rolled sheet (CRS+annealed rolling), the products are widely used in food cans and computer electromagnetic shielding to make small parts.
Tinplate characteristics:
-Beautiful appearance, good paintability and good printability.
-Corrosion resistance, good weldability.
-The material is uniform and the workability is good.
-Can use various surface treatments for quenching and tempering.
-It can be used as a food container and is harmless to human body.

4. Stainless steel plate
Stainless steel is a branch of steel materials used in environments that require corrosion resistance.
Corrosion resistance mainly contains chromium, but nickel and molybdenum are also added to increase the effect.
Stainless steel characteristics::
-Stainless steel is not rust-free. Rusting of stainless steel is a common phenomenon and should be called corrosion-resistant steel.
-Stainless steel is an alloy of iron, carbon and chromium, or in addition to other alloys, chromium is the first main element, nickel is the second main element, it has a smooth appearance, corrosion resistance, and has good mechanical properties.

Stainless steel plate type, chemical composition
class	Cr	Ni	C	Si	Mn
SUS 301	15.8~ 18.2	5.9~ 8.1	≦0.16	≦1.05	≦2.04
SUS 304	17.8~ 20.2	7.9~ 10.6	≦0.09	≦1.05	≦2.04
SUS 302	16.8~ 19.2	7.9~ 10.1	≦0.16	≦1.05	≦2.04
SUS 430	15.8~ 18.2		≦0.13	≦0.80	≦1.03

5. Die steel
category:
-Cold work die steel: SKD11, SLD, Cr12MoV, DC52.
-Plastic mold steel: P20, NAK80, STAVAX.
-Hot work die steel: SKD61, H13, 4Cr5MoSiV.
-Powder steel: V4, V10, ASP23.
-High-speed tool steel: SKH51, M2.
-Mechanical tensile steel: S45C, 45#, 42Cr.

2-1 Characteristics of copper alloy
-High electrical and thermal conductivity, good gloss, trace impurities / cold processing will reduce about 2%
-FCC crystallization, easy plastic processing.
-Excellent corrosion resistance and easy plating.
-Copper is non-magnetic.

Brass Cu-Zn alloy
Art crafts and decorations, etc., with a content of 30-40% Zn, excellent ductility/punchability, suitable for electricity
Plating / deep drawing.
-95Cu-5Zn is similar to pure copper, easy to imprint, and is called gold-plated copper.
-90Cu-10Zn (red copper), used for drawing and pressing, is called commercial brass.
-85Cu-15Zn - called red brass; 80Cu-20Zn--low brass. To
-70Cu-30Zn (seven three brass), easy to cold work, widely used for deep drawing.
-65Cu-35Zn and Qisan brass are copper materials for deep drawing processing.
-60Cu-40Zn, six-four brass, structure is (+), used as bolts, nuts, etc.

Nickel silver Cu-Ni alloy
-Foreign silver, also known as foreign silver, has a color similar to silver. It used to be used as a substitute for decoration, tableware, musical instruments and other silverware.
-High toughness, high strength, good stability, full of elasticity, cocoa is a spring.

Phosphor bronze Cu-Sn-P
Phosphor bronze is composed of bronze (copper-tin alloy) with deoxidizer added, phosphorus (P) content of 0.03～0.35% and other trace elements such as Fe and Zn. Good ductility and fatigue resistance. It can be used for electrical and mechanical materials, and its corrosion resistance is higher than that of ordinary copper alloy products. It is made by continuous melting and casting (plates, copper coils) and has a high uniformity of material. Sex.

Beryllium Copper Cu – Be Alloy
About 2% beryllium, with precipitation hardening, strength/wear resistance/spring characteristics/conductivity, good corrosion resistance and workability.

2-5 light metal aluminum alloy, magnesium alloy
2-5-1 aluminum alloy characteristics
Lightweight: Lightweight use
-Corrosion resistance: natural (artificial) oxide film, excellent corrosion resistance.
-Formability: The soft state is suitable for various forming processes, such as lampshades, housings, etc.
-Strength: It can be strengthened to different strength levels 2~60Kg/mm2.
-Surface treatment: anodizing / chemical conversion treatment / electroplating / coating.
-Conductivity: 60% of pure copper, but the cost is cheap.
-Thermal conductivity: excellent, heat sink, heat exchanger.
-Processability: excellent tube, rod, wire, plate and various extruded profiles.
-Weldability: Good, wide application in various structures and ships.
-Non-toxic: For food use.
-Recyclability: Recycling and remelting, sufficient and effective.
 
2-5-1-1 Manufacturing Classification
2-5 aluminum alloy forming

Alloy series	Alloy No.	Material No.
純鋁(>99.0%)	1**	L2,1070(ASTM, A1070(JIS)
Al-Cu	2**	LY9,2024,A2024
Al-Mn	3**	LF21,3003,A3003
Al-Si	4**	LT1,4043,A4043
Al-Mg	5**	LF2,5052,A5052
Al-Mg-Si	6**	LD1(2),6063(6061), A6063(1)
Al-Zn	7**	LC4,7075,A7075

Mechanical properties of main aluminum alloy forming materials

Grade and performance	Stretch	Yield	Hard	Elong
	25℃ Mpa	25℃ Mpa	500kg 10mm	1.6mm
5052- H32	230	195	60	12
6061- T651	310	276	95	12
7050-T7451	510	455	135	10
7075- T651	572	503	150	11

Aluminum alloy casting

Alloy series	Alloy No.	Material No.
純鋁(>99.0%)	1**
Al-Cu	2**	201.0
Al-Si(-Cu-Mg)	3**	A380/ADC10;A384 /ADC12
Al-Si	4**
Al-Mg	5**
Al-Zn	6**
Al-Sn	7**

2-5-1-2 Aluminum alloy anode treatment features
-Chemical oxidation / decorative anode / hard anode.
-Excellent protection and decoration/abrasion resistance, high hardness and uniform color, transparent film/defects in appearance are not allowed.
-Pure aluminum / anti-rust aluminum dyeing is brighter. To
-The aluminum-silicon alloy oxide film can only be dyed dark when it is dark.

2-5-2 Characteristics of Magnesium Alloy
-Good strength/weight ratio, light weight and good rigidity.
-Impact resistance, abrasion resistance / environmental protection regulations requirements.
-Heat resistance, good heat dissipation / vibration absorption, good electromagnetic shielding.
-Product trend/appropriate cost/manufacturing technology successful/non-flammable.

Magnesium alloy applications
Automotive industry /3C electronic products bicycles / high-sealing systems, sports and leisure equipment / industrial tools, weapon systems / medical equipment.

Magnesium alloy manufacturing process
Magnesium ingot die-casting (AZ, AM series) => deburring => mechanical processing => grinding => chemical conversion treatment => baking varnish.

International standard composition of magnesium alloy die-casting

	AZ91D	AM60B	AM50A	AM20
鋁(Al)	8.3-9.7%	5.5-6.5%	4.4-5.5%	1.7-2.5%
錳(Mn)	0.15-0.50%	0.24-0.6%	0.26-0.6%	0.20% max
鋅(Zn)	0.35-1.0%	0.22% max	0.22% max	0.20% max
矽(Si)	0.01% max	0.01% max	0.01% max	0.05% max
銅(Cu)	0.030% max	0.010% max	0.010% max	0.008% max
鎳(Ni)	0.002% max	0.002% max	0.002% max	0.001% max
鐵(Fe)	0.005% max	0.005% max	0.004% max	0.004% max
其它	0.02% max	0.02% max	0.02% max	0.01% max
鎂(Mg)	Left	Left	Left	Left

Magnesium alloy physical properties

Model	AZ91D	AM60B	AM50A	AM20
密度(g/cm3 )	1.81	1.80	1.77	1.75
Solidify( ℃ )	598	615	620	638
Melt	420-435	420-435	420-435	420-435
Thermal expansion	26.0	26.0	26.0	26.0
比熱溶解(kJ/kg)	370	370	370	370
比熱 (kJ/kg*K )	1.02	1.02	1.02	1.02
導熱系數(W/K*m )	51	61	65	94
導電系數 (MS/m)	6.6	-	9.1	13.1

Magnesium alloy mechanical properties

Model	AZ91D	AM60B	AM50A	AM20
Tensile (MPa)	240-250	225-240	210-230	190-210
Tensile  (MPa)	45160	130	125	90
Pressure (MPa)	148	-	113	74
Elongation (%)	3-7	8-13	10-15	12-20
拉緊系數(GPa)	45	45	45	45
剪切系數 (GPa)	17	-	-	-
布氏硬度 (HBS 1/5)	70	65	60	45
沖擊應力(J)	6-9	17-18	18	18

Various types of magnesium alloys

Model	Use
AZ91D	The most commonly used magnesium alloy has high strength and excellent casting properties. Such as: motorcycles, computer accessories, mobile phones, sports goods, casings, covers, portable tools, household goods, etc.
AM60B, AM50A	In addition to high strength and casting properties, it also has excellent ductility and energy absorption properties. (AM60B has relatively high tensile strength) Such as: car seat frame, wheel panel, instrument panel, bracket, etc.
AM20	High ductility and good impact strength. Such as: car safety accessories.