VALUE METAL INDUSTRY CO.,LTD.

Schematic diagram of main stainless steel products

Chemical composition of stainless steel

Type	Steel Grade	C%	Mn%	P%	S%	Si%	Cr%	Ni%	Mo%
鐵系	鋼種	碳C	錳Mn	磷P	硫S	矽Si	鉻Cr	鎳Ni	鉬Mo	main purpose
奧斯田鐵系 AUSTENITIC	SUS 301	≦0.15	≦2	≦0.045	≦0.03	≦1.00	16.00-18.00	6.00-8.00		Good ductility for molded products
	SUS 304	≦0.08	≦2	≦0.045	≦0.03	≦1.00	18.00-20.00	8.00-12.00		Has good heat resistance The most widely used
	SUS 304L	≦0.03	≦2	≦0.045	≦0.03	≦1.00	18.00-20.00	8.00-12.00		Products that are less susceptible to heat treatment
	SUS 305	≦0.12	≦2	≦0.045	≦0.30	≦1.00	17.00-19.00	10.00-13.00		Use more non-magnetic products
	SUS 316	≦0.08	≦2	≦0.045	≦0.03	≦1.00	16.00-18.00	10.00-14.00	2.00-3.00
	SUS 316L	≦0.03	≦2	≦0.045	≦0.03	≦1.00	16.00-18.00	10.00-14.00	2.00-3.00	Corrosion resistance Easy to heat treat
肥粒鐵系 FERRITIC	SUS 430	≦0.12	≦1	≦0.040	≦0.03	≦1.00	14.00-18.00			Good formability But poor heat resistance and corrosion resistance

Stainless steel mechanical properties

Material	Hardness	Hardness range	Yield Strength(YS) N/mm2	Tensile Strength(TS) N/mm2	延申率% Elongation
301	1/2 H	310 min	510 min	930 min	10 min
	3/4 H	370 min	745 min	1130 min	5 min
	H	430 min	1030 min	1320 min	3 min
	EH	490 min	1275 min	1570 min	-
	SEH	530 min	1450 min	1740 min	-
304	1/2 H	250 min	470 min	780 min	6 min
	3/4 H	310 min	665 min	930 min	3 min
	H	370 min	880 min	1130 min	-
302	SOFT	200 max	205 min	520 min	40 min
305	SOFT	200 max	175 min	480 min	40 min
316L	SOFT	200 max	175 min	480 min	40 min
409	SOFT	175 max	175 min	360 min	22 min
410	SOFT	210 max	205 min	440 min	20 min
420J2	SOFT	247 max	225 min	540 min	18 min
429	SOFT	200 max	205 min	390 min	25 min
430	SOFT	200 max	205 min	450 min	22 min
436	SOFT	200 max	-	410 min	22 min

It is made by tin-plating the surface of steel plates. It has the advantages of anti-rust and corrosion resistance. It is suitable for welding and is a widely used material. It is mainly used for canning (and suitable for painting, coating, printing) and electronic industry parts. and other material applications.

Amount of tin plating on tinplate surface

Symbol	Type	Symbol		Nominal Surface tin amount		minimum average Surface tin amount
SPTE	Equal Coating	CNS	JIS	g/m²	lb/B.B.	g/m²	lb/B.B.
		1.1/1.1	#10	1.1/1.1	0.05/0.05	0.9/0.9	0.04/0.04
		2.8/2.8	#25	2.8/2.5	0.125/0.125	2.45/2.45	0.11/0.11
		5.6/5.6	#50	5.6/5.6	0.25/0.25	5.05/5.05	0.23/0.23
		8.4/8.4	#75	8.4/8.4	0.375/0.375	7.55/7.55	0.35/0.35
		11.2/11.2	#100	11.2/11.2	0.50/0.50	10.1/10.1	0.45/0.45
	Differential Coating	2.8/5.6	#25/50	2.8/5.6	0.125/0.25	2.45/5.05	0.11/0.23
		2.8/8.4	#25/75	2.8/8.4	0.125/0.375	2.45/7.55	0.11/0.35
		2.8/11.2	#25/100	2.8/11.2	0.125/0.50	2.45/10.1	0.11/0.45
		5.6/8.4	#50/75	5.6/8.4	0.25/0.375	5.05/7.55	0.23/0.35

＊Indicates that the tin content on both sides is different. D-mark and A-mark can be used to distinguish the tin content on the two sides according to customer needs

＊Tin plate negative and tin plated steel symbol

Type	Symbol
Material negative	SPB
Electroplated tin plated steel sheet	SPTE
Hot dipped tin plated steel sheet	SPTH

Product name	Specifications and dimensions (currently of our company)
Tinplate	0.15mm~0.6mm

Temper Designation

	Symbol	Rockwell hardness target value (HR-30)	Usage
Single Reduced	T1	46~52	Drawn requirements,nozzles,spouts,closures
	T2	50~56	Applications where moderate drawability and some stiffness are required small square and oval
	T2.5	52~58	Items requiring the drawability of T2 in combination with the stiffness of T3
	T3 T3CA	54~60	Can ends and bodies,large diameter closures,crown caps
	T4CA	58~64	General line cans,crowns and others requiring higher stiffness than T3
	T5CA	62~68	Large can ends and bodies where excellent bulking resistance is required
Double Reduced	DR-8CA	70~76	Can body for beers and carbonated beverages
Double Reduced	DR-9CA	73~79	Large can body,can ends

＊T1 Soft materials with emphasized workability can be used for deep drawing

＊T2 High performance for deep drawing

＊T2.5 It is a balanced and elongation type located between T-2 and T-3

＊T3 For general use and elongation

＊T4CA Continuously annealed single-pass cold-rolled products have higher toughness and are suitable for cans, barrels, and tops

＊T5CA T5CA Continuously annealed single-pass cold-rolled products, considered when buckling resistance is required

＊CA is continuously annealed and has the advantages of high hardness, uniform mechanical properties and high corrosion resistance

＊R-8CA、DR-9CA The original plate is annealed and then rolled again into extremely thin and strong tinplate

Tinplate secondary rolled products

Double Reduced	hardness HR30T Rockwell hardness	Carrying capacity Rolling Direction N/mm2
DR-8	73±5	550
DR-9	76±5	620
DR-9M	77±5	660
DR-10	80±5	690

＊DR-1 Annealed, it can be used as body panels for round cans that require rigidity and strength

＊DR-8 Also suitable for applications requiring greater strength, such as round tank roofs and floors

＊DR-9 Has the strongest annealability of tinplate and is used for special applications

Tinplate surface treatment

	Mark	Classification	Specific Features
Single Reduction	B	Smooth Finish	On a substrate with a fine-grained smooth surface, the tin layer is applied to a melt-processed glossy surface
	R	Stone Finish	On the negative film with a certain direction of the whetstone surface, the tin layer is applied to a melt-processed glossy surface
	S	Silver Finish	On a substrate with a coarse matte surface, the tin layer is applied to a melt-processed glossy surface
	M	Matt Finish	A matte surface usually obtained by tinting a matte-surface substrate without melting it
Double Reduction	R	Super Stone Finish	Tin plating is applied to the base plate with certain millstone particles and melted to give it a glossy finish

Nickel-Silver

Alloy composition(%)						Characteristics and uses
Cu	Mn	Fe	Zn	Ni	Pb
C7701	54.0-58.0	≤0.50	≤0.25	remnant	16.5-19.5	≤0.03	Beautiful color High tensile strength Good elongation for deep drawing Anti-fatigue, excellent elasticity Anti-corrosion properties
C7521	62.0-66.0	≤0.50	≤0.25	remnant	16.5-19.5	≤0.03	Material has excellent toughness And it has a bright silvery white color and stability Suitable for mobile phone shielding cover Electronic communication and other shielding collar

Tensile Strength	Elongation	Yield Strength(MPa)	Hardness	Conductivity	Thermal conductivity	Elastic coefficient
(N/mm2)	(%)		(HV)	(%IACS)	(Cal/cm2/cm/sec/°C)	(KN/mm2)
C7701	1/2H	540-655	150-210	540	140-200	≥ 5.5
	H	630-735	180-240	635	175-220
	EH	705-805	210-260	715	195-240
	SH	760-860	230-270	785	210-250
C7521	1/2H	440-570	120-180	540	130-160	≥ 6
C7521	H	540-640	150-210	635	150-180

Product