Galvanized Steel Coil (S350GD+Z S250GD+ZF) Type: Structural Steel

Galvanized Steel Coil (S350GD+Z S250GD+ZF) Type: Structural Steel

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Loading Port:: Tianjin

Payment Terms:: TT OR LC

Min Order Qty:: 25 m.t.

Supply Capability:: 10000 m.t./month

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Basic Info.

Model NO.:S350GD+Z S350GD+ZF

Surface Treatment:Galvanized

Technique:Cold Rolled

Standard:ASTM,JIS,GB,AISI,DIN,Bs and Others

Steel Grade:S350gd+Z S350gd+Zf

Export Markets:Global

Additional Info.

HS Code:72104900

Production Capacity:10000tons Per Month

Product Description

Brief Introduction:

Commodity name : Hot Dipped Galvanized Steel Coil

Standard we can provide: AISI ASTM BS DIN GB JIS

Grade : DC51D+Z,DC51D+ZF,St01Z,St02Z,St03Z

Zinc Coating:40g-275g/m2

Size we can provide:

Size Range: CRC substrate Thickness: 0.3-3.0mm

CRC substrate Width: 800-1830mm

HRC substrate Thickness:1.8-2.8mm

HRC substrate Width:900-1500mm

Galvanized Steel Coil (S350GD+Z S250GD+ZF) Type: Structural Steel

Grade	Chemical composition %
	C	Si	Mn	P	S	Alta	Ti	Nb
	No more than	No more than	No more than	No more than	No more than	No less than	No more than	No more than
DC51D+Z,DC51D+ZF	0.1	---	0.5	0.035	0.035	---	---	---
(St01Z,St02Z,St03Z)	0.1	---	0.5	0.035	0.035	---	---	---


Grade	Mechanical properties						plating adhesion
	yield strength	tensile strength	n 90	r 90	Elongation %			Plating weight(g/m 2 )
	Mpa	Mpa	No less than	No less than	No less than			Bending diameter
								(a=thickness of slab)
					L 0 =80mm b=20mm
					Normal thickness mm
					≤ 0.7	>0.7		≤ 140/140	>140/140~	>175/175
					≤ 0.7	>0.7		≤ 140/140	175/175	>175/175
DC51D+Z(St01Z,St02Z,St03 Z), DC51D+ZF	---	270~500	---	---	20	22		0a	1a	2a
Exposure Test :						Salt Spray Test :
Exposure Test :						Salt Spray Test :
Environment	GI					Enviroment	GI Average Corrosion		AL-ZN Average Corrosion
	Average corrosion						GI Average Corrosion		AL-ZN Average Corrosion
	g/m2 /y	μ m/y					g/m2/y	um/y	g/m2/y	um/y
Tough Marine Climate	140	9.8				tough Marine Climate	140	9.8	16	2.2
Moderate Marine Climate	18	1.3				Modeerate Marine Climate	18	1.3	4	0.54
Industrial Climate	20	1.4				Industrial Climate	20	1.4	4.2	0.57
Countryside Climate	4	0.28				Countryside Climate	4	0.28	1.3	0.17
Plainness of hot dip galvanized substrate A.2.1 For steel sheet with a specified minimum yield strength less than 260MPa, the maximum plainness tolerance should be in conformity with the stipulations of Table A1.
MPa	Nominal width	Plainness (mm) for the nominal thickness as shown below
		Common precise PF.A			High-level precision PF.B
		<0.70	0.70~<1.60	1.60~3.0	<0.70	0.70~<1.60	1.60~3.0
<260	<1200	10	8	8	5	4	3
	1200~<1500	12	10	10	6	5	4
	≥1500	17	15	15	8	7	6
For steel sheet and steel strip with a specified minimum yield strength not less than 260MPa but less than 360MPa,and the grades of DC51+Z/Z DD51D+Z /S550GD+Z/ZF), the maximum plainness tolerance should be in conformity with the stipulations of Table A2. Table A2

MPa	Nominal width	Plainness (mm) for the nominal thickness as shown below
		Common precise PF.A			High-level precision PF.B
		<0.70	0.70~<1.60	1.60~3.0	<0.70	0.70~<1.60	1.60~3.0
260~<360	<1200	13	10	10	8	6	5
	1200~<1500	15	13	13	9	8	6
	≥1500	20	19	19	12	10	9
Thickness tolerance for hot dip galvanized substrate
Thickness tolerance for hot dip galvanized substrate
For steel sheet with a specified minimum yield strength less than 260MPa, the maximum thickness tolerance should be in conformity with the stipulations of Table A6.

Nominal thickness	Thickness tolerance while the widths are showed as follows
	Common precise PT.A			High-level precision PT.B
	≤1200	>1200~1500	>1500	≤1200	>1200~1500	>1500
0.30~0.40	±0.04	±0.05	±0.06	±0.030	±0.035	±0.040
>0.40~0.60	±0.04	±0.05	±0.06	±0.035	±0.040	±0.045
>0.60~0.80	±0.05	±0.06	±0.07	±0.040	±0.045	±0.050
>0.80~1.00	±0.06	±0.07	±0.08	±0.045	±0.050	±0.060
>1.00~1.20	±0.07	±0.08	±0.09	±0.050	±0.060	±0.070
>1.20~1.60	±0.10	±0.11	±0.12	±0.060	±0.070	±0.080
>1.60~2.00	±0.12	±0.13	±0.14	±0.070	±0.080	±0.090
>2.00~2.50	±0.14	±0.15	±0.16	±0.090	±0.100	±0.110
>2.50~3.00	±0.17	±0.17	±0.18	±0.110	±0.120	±0.130
For steel sheet and steel strip with a specified minimum yield strength not less than 260MPa but less than 360MPa, the thickness tolerance should be in conformity with the stipulations of Table A7.

Nominal thickness	Thickness tolerance while the widths are showed as follows
	Common precise PT.A			High-level precision PT.B
	≤1200	>1200~1500	>1500	≤1200	>1200~1500	>1500
0.30~0.40	±0.05	±0.06	±0.07	±0.035	±0.040	±0.045
>0.40~0.60	±0.05	±0.06	±0.07	±0.040	±0.045	±0.050
>0.60~0.80	±0.06	±0.07	±0.08	±0.045	±0.050	±0.060
>0.80~1.00	±0.07	±0.08	±0.09	±0.050	±0.060	±0.070
>1.00~1.20	±0.08	±0.09	±0.11	±0.060	±0.070	±0.080
>1.20~1.60	±0.11	±0.13	±0.14	±0.070	±0.080	±0.090
>1.60~2.00	±0.14	±0.15	±0.16	±0.080	±0.090	±0.110
>2.00~2.50	±0.16	±0.17	±0.18	±0.110	±0.120	±0.130
>2.50~3.00	±0.19	±0.20	±0.20	±0.130	±0.140	±0.150
For steel sheet and steel strip with a specified minimum yield strength not less than 360MPa, but less than or equal to 420 MPa, the thickness tolerance should be in conformity with the stipulations of Table A8.

Nominal thickness	Thickness tolerance while the widths are showed as follows
	Common precise PT.A			High-level precision PT.B
	≤1200	>1200~1500	>1500	≤1200	>1200~1500	>1500
0.30~0.40	±0.05	±0.06	±0.07	±0.040	±0.045	±0.050
>0.40~0.60	±0.06	±0.07	±0.08	±0.045	±0.050	±0.060
>0.60~0.80	±0.07	±0.08	±0.09	±0.050	±0.060	±0.070
>0.80~1.00	±0.08	±0.09	±0.11	±0.060	±0.070	±0.080
>1.00~1.20	±0.10	±0.11	±0.12	±0.070	±0.080	±0.090
>1.20~1.60	±0.13	±0.14	±0.16	±0.080	±0.090	±0.110
>1.60~2.00	±0.16	±0.17	±0.19	±0.090	±0.110	±0.120
>2.00~2.50	±0.18	±0.20	±0.21	±0.120	±0.130	±0.140
>2.50~3.00	±0.22	±0.22	±0.23	±0.140	±0.150	±0.160
For steel sheet and steel strip with a specified minimum yield strength not less than 420MPa, but less than or equal to 900 MPa, the thickness tolerance should be in conformity with the stipulations of Table A9.

Nominal thickness	Thickness tolerance while the widths are showed as follows
	Common precise PT.A			High-level precision PT.B
	≤1200	>1200~1500	>1500	≤1200	>1200~1500	>1500
0.30~0.40	±0.06	±0.07	±0.08	±0.045	±0.050	±0.060
>0.40~0.60	±0.06	±0.08	±0.09	±0.050	±0.060	±0.070
>0.60~0.80	±0.07	±0.09	±0.11	±0.060	±0.070	±0.080
>0.80~1.00	±0.09	±0.11	±0.12	±0.070	±0.080	±0.090
>1.00~1.20	±0.11	±0.13	±0.14	±0.080	±0.090	±0.110
>1.20~1.60	±0.15	±0.16	±0.18	±0.090	±0.110	±0.120
>1.60~2.00	±0.18	±0.19	±0.21	±0.110	±0.120	±0.140
>2.00~2.50	±0.21	±0.22	±0.24	±0.140	±0.150	±0.170
>2.50~3.00	±0.24	±0.25	±0.26	±0.170	±0.180	±0.190
Width tolerance
Width tolerance
Nominal width	Width tolerance		Width

FAQ

1.What's your MOQ?
25MT, it is for one container.
2.Do you have QC teams?
Yeah, sure, our QC team is very important, they will keep the quality control for our products.
3. What's your normal delivery time?
Our delivery time about 10-20days for standard sizes, if you have other requirements like hardness and width ,it is about 20-40days. But don't worry ,we also try our best for the delivery time ,because time longer and our cost is higher.
4.Are the products tested before shipping?
Yes, all of our PPGI and GI was qualified before shipping. We test every batch every day.

Q: How are steel coils used in the manufacturing of railroads?: Steel coils are used in the manufacturing of railroads as they serve as a primary raw material for producing railway tracks. These coils are processed and cut into appropriate lengths, then shaped into rails through a series of rolling and forging techniques. The resulting rails provide the necessary strength, durability, and stability required to support heavy loads and withstand the wear and tear of train traffic.

Q: Can steel coils be coated with epoxy?: Yes, steel coils can be coated with epoxy. Epoxy coatings provide protection against corrosion and enhance the durability and lifespan of the steel coils.

Q: How do steel coils contribute to sustainability in construction?: Steel coils contribute to sustainability in construction in several ways. Firstly, steel is a highly durable and long-lasting material, which means that structures built using steel coils have a longer lifespan and require fewer repairs and replacements. This reduces the overall environmental impact associated with construction activities. Additionally, steel is a highly recyclable material, with most steel coils containing a significant amount of recycled content. This promotes a circular economy and reduces the demand for new raw materials. Moreover, steel coils are lightweight and versatile, allowing for more efficient transportation and installation, thereby reducing energy consumption and emissions during construction. Overall, the use of steel coils in construction promotes sustainability by offering durability, recyclability, and energy efficiency.

Q: How are steel coils inspected for chemical composition using spectroscopy?: Steel coils are inspected for chemical composition using spectroscopy by using a technique called laser-induced breakdown spectroscopy (LIBS). In LIBS, a high-energy laser beam is directed onto the surface of the steel coil, causing a small portion of the material to vaporize and form a plasma. The plasma emits characteristic light that is unique to the elements present in the steel. This emitted light is then analyzed by a spectrometer, which separates the light into its individual wavelengths and measures their intensities. By comparing the intensities of the emitted light to known reference spectra, the chemical composition of the steel coil can be determined accurately and efficiently.

Q: How are steel coils used in the production of shelving units?: Steel coils are used in the production of shelving units by being processed and formed into various components such as shelves, brackets, and support beams. These coils are typically cut, bent, and welded to create the necessary shapes and sizes required for the shelving unit. The steel material provides strength and durability to the shelves, ensuring they can hold heavy items and withstand the weight placed on them.

Q: What are the different methods of coil joining for steel coils?: There exists a variety of techniques for joining steel coils, each with its own advantages and limitations. Some commonly employed methods encompass the following: 1. Welding: Among the most popular methods of coil joining, welding involves the use of heat to melt and fuse the edges of steel coils. Arc welding, resistance welding, or laser welding can be utilized for this purpose. Welding offers a robust and durable joint, although it can be time-consuming and necessitate skilled operators. 2. Mechanical fastening: This technique entails the use of mechanical fasteners like clips, staples, or bolts to connect the edges of steel coils. Mechanical fastening is relatively quick and straightforward, and it allows for easy disassembly if needed. However, the joint may not be as strong as welding and can be prone to loosening over time. 3. Adhesive bonding: Adhesive bonding involves the use of a suitable adhesive or glue to bond the edges of steel coils. This approach yields a strong and uniform joint, while also providing protection against corrosion. However, adhesive bonding may require surface preparation and curing time, and it might not be suitable for high-temperature applications. 4. Interlocking or tongue-and-groove joints: This method involves shaping the edges of steel coils in a manner that they interlock or fit together like puzzle pieces. Interlocking joints provide good alignment and are easily assembled and disassembled. Nevertheless, they may not yield as strong a joint as welding or mechanical fastening. 5. Coil-overlapping: In this method, the edges of steel coils are overlapped and clamped together using mechanical means. Coil-overlapping is a simple and cost-effective technique, albeit it may not yield a strong joint and can result in uneven coil edges. When selecting the appropriate method of coil joining for steel coils, it is crucial to consider factors such as application requirements, strength requirements, cost, and production efficiency.

Q: What are the advantages of using steel coils?: There are several advantages of using steel coils. Firstly, steel coils are highly durable and can withstand extreme conditions, making them suitable for various applications. Secondly, they provide excellent strength and stability, making them ideal for structural purposes. Additionally, steel coils can be easily molded into different shapes, allowing for customization and versatility in design. Moreover, steel coils have a high recycling rate, making them an environmentally friendly choice. Finally, steel coils offer cost-effectiveness due to their long lifespan and low maintenance requirements.

Q: How are steel coils used in the manufacturing of marine equipment?: Steel coils are commonly used in the manufacturing of marine equipment as they provide a strong and durable material for various applications. These coils are often shaped, cut, and formed into different components such as hulls, propeller shafts, and structural supports. The high tensile strength of steel coils ensures the equipment's ability to withstand the harsh conditions of marine environments, including corrosion and pressure from waves and currents. Additionally, steel coils can be easily welded, making them suitable for constructing larger structures like ship decks and bulkheads.

Q: I'm getting my nose pierced, meaning that i have to keep the piercing in for a prolonged time. i've always had reactions when wearing sterling silver or fake earrings (i dont know what types of metal they were) after wearing it overnight. Will I get a reaction on my nose piercing if the stud is surgical steel?: Surgical Steel Tongue Rings

Q: How are steel coils manufactured?: Steel coils are manufactured through a multi-step process that involves heating and shaping steel slabs, followed by passing them through a series of rolling mills to reduce their thickness and increase their length. The coils are then cooled, inspected for quality, and finally, wrapped and ready for shipping.

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