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Baosteel series products DC04EK DD51D+Z(St01ZR、St02ZR)

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Product Description

Hot dip galvanized

The small zinc

Code: X

Features: Surface formed by controlled condensation of zinc layers, showing fine zinc flowers smaller than normal.

Application: For use where normal zinc flower cannot meet the requirements of surface appearance.

The finishing zinc

Code: G

Characteristics: Surface structure obtained by special finishing treatment.

Purpose: For high surface quality applications such as color coated substrates.

Smooth little zinc flowers

Code: GX

Characteristics: Surface structure obtained by special finishing treatment.

Purpose: For high surface quality applications such as color coated substrates.

The zero zinc

Code: N

Features: No visible zinc flower on the coating surface by using specific production process.

Zinc alloy

Code: R

Features: No zinc flower, gray, general luster.

Purpose: Suitable for further painting.

Chemical composition and mechanical properties

The material	Chemical composition
The material	C（≤）	Si（≤）	Mn（≤）	P（≤）	S（≤）	Alt（≥）	Ti（≤）	Nb（≤）
DC51D+Z,DC51D+ZF(St01Z.St02Z.St03Z)	0.10	—	0.50	0.035	0.035	—	—	—
DC52D+Z(St04Z)、DC52D+ZF	0.08	—	0.45	0.030	0.030	—	—	—
DC53D+Z(St05Z)、DC53D+ZF	0.08	—	0.40	0.030	0.030	—	—	—
DC54D+Z(St06Z)、DC54D+ZF	0.01	0.10	0.30	0.025	0.020	0.015	0.10	—
DC56D+Z(St07Z)、DC56D+ZF	0.01	0.10	0.30	0.025	0.020	0.015	0.10	0.10
DD51D+Z(St01ZR、St02ZR)	0.10	—	0.50	0.035	0.035	—	—	—
DD54D+Z(St06ZR)	0.01	0.10	0.30	0.025	0.020	0.015	0.10	—
The material	Mechanical properties
The material	YS	TS（≥）	EL（≥）
DC51D+Z(St01Z,St02Z,St03Z),DC51D+ZF	—	270~500	20
DC52D+Z(St04Z).DC52D+ZF	140~300	270~420	24
DC53D+Z(St05Z),DC53D+ZF	140~260	270~380	28
DC54D+Z(St06Z),DC54D+ZF	140~220	270~350	32
DC56D+Z(St07Z)	120~180	270-350	38
DC56D+ZF	120~180	270-350	36

The material	Chemical composition
The material	C（≤）	Si（≤）	Mn（≤）	P（≤）	S（≤）	Alt（≥）
S220GD+Z,S220GD+ZF	0.13	—	0.50	0.035	0.035	0.015
S250GD+Z,S250GD+ZF	0.16	—	0.60	0.035	0.035	0.015
S280GD+Z(StE280-2Z),S280GD+ZF	0.20	—	0.80	0.035	0.035	0.015
S320GD+Z,S320GD+ZF	0.23	—	1.00	0.035	0.035	0.015
S350GD+Z(StE345-2Z),S350GD+ZF	0.25	—	1.50	0.035	0.035	0.015
S550GD+Z,S550GD+ZF	0.25	—	1.50	0.035	0.035	—
The material	Mechanical properties
The material	YS	TS（≥）	EL（≥）
S220GD+Z,S220GD+ZF	220	300	18
S250GD+Z,S250GD+ZF	250	330	17
S280GD+Z(StE280-2Z),S280GD+ZF	280	360	16
S320GD+Z,S320GD+ZF	320	390	15
S350GD+Z(StE345-2Z),S350GD+ZF	350	420	14
S550GD+Z,S550GD+ZF	550	560	—

The material	Chemical composition
The material	C（≤)	Si（≤)	Mn（≤)	P（≤)	S（≤)	Alt（≥）	Ti（≤)	Nb（≤)
H220PD+Z,H220PD+ZF	0.08	0.50	0.70	0.080	0.025	0.015	—	—
H260PD+Z,H260PD+ZF	0.15	0.50	0.70	0.100	0.025	0.010	—	—
H300LAD+Z,H300LAD+ZF	0.10	0.50	1.00	0.030	0.025	0.015	0.015	0.09
H340LAD+Z(HSA340Z).H340LAD+ZF	0.10	0.50	1.00	0.030	0.025	0.015	0.015	0.09
H380LAD+Z	0.16	0.50	1.50	0.030	0.025	0.015	0.015	0.09
H420LAD+Z(HSA410Z)	0.16	0.50	1.50	0.030	0.025	0.015	0.015	0.09
H180BD+Z,H180BD+ZF	0.04	0.50	0.70	0.060	0.025	0.020	—	—
H220BD+Z,H220BD+ZF	0.06	0.50	0.70	0.080	0.025	0.020	—	—
H260BD+Z,H260BD+ZF	0.08	0.50	0.70	0.100	0.025	0.020	—	—
H180YD+Z,H180YD+ZF	0.01	0.10	0.70	0.060	0.025	0.020	0.12	—
H220YD+Z,H220YD+ZF	0.01	0.10	0.90	0.080	0.025	0.020	0.12	—
H260YD+Z,H260YD+ZF	0.01	0.10	1.60	0.100	0.025	0.020	0.12	—
DD51D+Z(St01ZR,St02ZR)	0.10	—	0.50	0.035	0.035	—	—	—
DD54D+Z(St06ZR)	0.01	0.10	0.30	0.025	0.020	0.015	0.010	—
HR340LAD+Z(HSA340ZR)	0.10	0.20	1.00	0.030	0.025	—	—	0.09
HR420LAD+Z(HSA410ZR)	0.12	0.20	1.00	0.030	0.025	—	—	0.09
The material	Mechanical properties
The material	YS	TS（≥）	EL（≥）
H220PD+Z.H220PD+ZF	220~320	340~420	32
H260PD+Z.H260PD+ZF	260-340	380~440	28
H300LAD+Z.H300LAD+ZF	300~380	380~480	23
H340LAD+Z(HSA340Z).H340LAD+ZF	340~420	410~510	21
H380LAD+Z	380~480	440-560	19
H420LAD+Z(HSA410Z)	420~520	470-590	17
H180YD+Z.H180YD+ZF	180~240	340~400	34
H220YD+Z.H220YD+ZF	220~280	340~410	32
H260YD+Z.H260YD+ZF	260~320	380~440	30
H180BD+Z.H180BD+ZF	180~240	300-360	34
H220BD+Z.H220BD+ZF	220~280	340~400	32
H260BD+Z.H260BD+ZF	260~320	360~440	28
DD51D+Z(St01ZR,St02ZR)	—	270~500	—
DD54D+Z(St06ZR)	≤260	≤360	36
HR340LAD+Z(HSA340ZR)	≥340	≥410	18
HR410LAD+Z(HSA410ZR)	≥410	≥480	15

Hot galvanized sheet for air conditioning ventilation duct

With its high quality zinc layer and passivation film characteristics, hot galvanized sheet has excellent bare use corrosion resistance, widely used in air conditioning, refrigeration, HVAC industry.

Chemical composition and mechanical properties

The material	Chemical composition
The material	C	Si	Mn	P	S	Ti
DX51D+Z	0.18	0.5	1.2	0.12	0.045	0.3
The material	Mechanical properties
The material	YS	TS	EL
DX51D+Z	_	270-500	22

Electric galvanized

Substrate

Galvanized substrate is obtained from hot rolled coil of corresponding specification after pickling rolling, annealing and flat processing into cold rolled coil.

Qing wash

Alkali washing and acid washing are carried out on the surface before electroplating to make the strip surface clean. Electroplating: Electroplating or zinc-Ni alloy on washed strip surface, single side or differential thickness.

Surface treatment

According to different uses, after plating, phosphating, passivation, oil coating and fingerprint resistance, self lubrication fingerprint resistance processing.

Product specifications and post-processing

Product of

Electrogalvanized steel plate surface treatment can be roughly divided into oil coating, chemical passivation, phosphating, fingerprint resistance, self-lubrication fingerprint resistance treatment.

Electroplated zinc substrate is smooth by pickling cold rolling and annealing with hot rolled coupons of corresponding specifications, and has the same mechanical properties as the substrate except the coating.

Chemical passivation

Chromium-free passivation is designed to improve corrosion resistance.

Phosphorus is changed

In order to improve the performance of coating, the surface of zinc plating was phosphating and chrome-free sealing treatment.

Fingerprint resistant plate

For the electronic industry, the internal parts of household appliances should be repeatedly touched by hand in the processing. In order to prevent fingerprints from leaving sweat on the steel plate, fingerprint resistant coating is carried out on the surface of the steel plate.

Self lubricating fingerprint resistant plate

For micromotors and motor shell parts, in order to protect the steel plate surface and reduce damage, self-lubricating coating is applied on the steel plate surface.

Aluminum-zinc aluminum-magnesium coated steel plate

The characteristics of

The corrosion resistance is 10-20 times that of hot dip galvanized steel plate, and the notch corrosion resistance is especially excellent;

High hardness, coating steel binding force is good, has good scratch resistance and formability;

Suitable for home appliances, buildings, photovoltaic, automotive parts and other applications with high corrosion resistance, high forming requirements, more unique advantages in alkaline environment.

Mechanical properties of high Al Zn Al Mg coated steel plate

The material	Mechanical properties
The material	YS	TS	EL（≥）
DC51D+AM	190-360	270-500	22
DC52D+AM	140-300	270-420	26
DC53D+AM	140-220	270-380	30
DC54D+AM	120-220	260-350	36

The material	Mechanical properties
The material	YS（≥）	TS（≥）	EL（≥）
S250GD+AM	250	330	19
S300GD+AM	300	380	18
S350GD+AM	350	420	16
S450GD+AM	450	480	15
S550GD+AM	550	550

Mechanical properties of aluminum, zinc, aluminum and magnesium coated steel plate

The material	Mechanical properties
The material	YS	TS	EL（≥）
DC51D+XM	140～300	270～500	22
DC52D+XM	140～260	270～420	26
DC53D+XM	140～220	270～380	30
DC54D+XM	120～200	260～350	34
DC56D+XM	120～180	260～350	37
DC57D+XM	120～170	260～350	39

The material	Mechanical properties
The material	YS	TS	EL
S220GD+XM	≥220	≥300	≥20
S250GD+XM	≥250	≥330	≥19
S280GD+XM	≥280	≥360	≥18
S320GD+XM	≥320	≥390	≥17
S350GD+XM	≥350	≥420	≥16
S450GD+XM	≥450	≥510	≥14
S550GD+XM	≥550	≥550	—

Hot aluminum zinc plating

The hot-dip Al-Zn coated steel is a kind of coated steel.With the cold rolled steel of different strength and thickness as substrate it is produced through applying Al-Zn coat on both faces by hot dip process. In its coating,Alaccounts for about 55%Si1.6%Zn43.4%.It enjoys both the physical protective feature and durabil ity of Al and the electrochemical protective property of Zn. And its surface has bright silver color and regular embossed-like fig ure, which are highly decorative.

Mechanical properties of

The material	Mechanical properties
The material	YS	TS	EL（≥）
DC51D+AZ	190~360	270~500	22
DC52D+AZ	140~300	270~420	26
DC53D+AZ	140~260	270~380	30
DC54D+AZ	120~220	260~350	36

The material	Mechanical properties
The material	YS（≥）	TS（≥）	EL（≥）
S250GD+AZ	250	330	19
S300GD+AZ	300	380	18
S350GD+AZ	350	420	16
S450GD+AZ	450	480	15
S550GD+AZ	550	550	—

Baosteel automobile plate

Mechanical properties

The material	Mechanical properties
The material	TN	YS	TS	EL
HC600/980QP	1.2	706	1073	18
HC600/980QP-EL	1.2	687	1068	22
HC820/1180QP	1.2	997	1235	14
HC820/1180QP-EL	1.2	976	1239	17
HC600/980QP-ELD+Z	1.5	690	1086	22
HC600/980QP-ELD+ZF	1.4	703	1018	23
HC600/980QP-ELE+Z	1.4	641	1049	22
HC820/1180QP-ELD+Z	1.5	1002	1198	15
HC820/1180QP-ELD+ZF	1.6	955	1194	16
HC820/1180QP-ELE+Z	1.5	983	1227	19

Cold-rolled Steel for Enamelling

Define

Steel plate for enamel is the strength of steel plate, formability and enamel corrosion resistance, wear resistance and bright color

Combined, these features are used in the following areas.

Colorful washbasins, porcelain cups, bowls and countertops in life; High temperature resistant baking oven, oven;

Pressure-resistant water heater liner; Bathtubs and shower rooms of different shapes can be made of steel plates coated with enamels.

Signboards, billboards and wall panels in underground squares and subway stations; The wall panels of an office building; tunnel

After the decorative plate inside the road uses enameled steel plate, it can not only achieve 30 years without fading, but also daily maintenance and Qing

Easy to wash and change.

The teaching board in the classroom and the writing board in the conference room are made of enamel steel plate, which is not only wear-resistant but also easier to clean

Clean.

In the industrial field, enamel steel is widely used. In highly corrosive thermal power plants heat exchanger cold

End, the reactor of chemical plant, waste water storage of sewage treatment plant, municipal tap water sewage pipeline, etc. Enamel with

The high corrosion resistance and smooth surface of steel plate are given full play.

Chemical composition and mechanical properties

The material	Chemical composition
The material	C	Si	Mn	P	S
DC04EK	≤0.08	≤0.05	≤0.5	≤0.0²	≤0.05
DC06EK	≤0.008	≤0.05	≤0.5	≤0.0²	≤0.05
DC04ED/BTC4D	≤0.004	≤0.2	≤0.5	≤0.015	≤0.035
BTCl	≤0.008	≤0.05	0.1-0.3	≤0.02	≤0.05
The material	Mechanical properties
The material	YS	TS	EL
DC04EK	≤220	270-350	≥36
DC06EK	≥160	≥290	≥36
DC04ED/BTC4D	≤210	270-350	≥38
BTCl	≤190	270-320	≥39

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