Stainless Steel Coil Supplier, Manufacturer In China

Stainless Steel Coil

Ronsco is proud to specialize in stainless steel coil alongside a breadth of stainless steel products. We are cooperating with worldwide mills to provide various options of materials, and keep regular stock to meet diverse demands.

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Stainless Steel Coil Supplier, Manufacturer In China - Ronsco

MORE DETAILS ABOUT Stainless Steel Coil

Product Name	Stainless Steel Coil, Stainless Coil, SS Coil
Standard	GB, AISI, ASTM, DIN, EN, JIS
Available Grades	300 Series: 304, 304L, 304H, 309, 309S, 310, 310S, 316, 316L, 317, 317L, 321, 321H, 347, 347H
	400 Series: 409, 410S, 416, 420, 430, 439, 440, 444, 446
	Duplex and Others: 2205, 2507, S31803, S32205, S32750, S32760, 253MA, 254SMO, 904L etc
Process	Hot Rolled, Cold Rolled
Sizes	Thickness: 0.1-16mm, Width: 600-2000mm
Surface Treatment	NO.1, 2B, NO.4, BA, HL, Mirror
Inspection	SGS, TUV, BV, ABS, LR etc.
Application	Oil&Gas, Petroleum, Vessels, Ship Building, Water Treatment And Environmental Protection etc.

LEARN MORE ABOUT EACH Stainless Steel Coil GRADE

MORE DETAILS ABOUT EACH Stainless Steel Coil GRADE

Chemical Component
Mechanical Property
304 304L 304H
309 309S
310 310S
316 316L
321 321H
2205 2507
904L

Chemical.Component	C	Mn	P	S	Si	Cr	Ni	Mo	N	Cu
304	0.07	2.00	0.045	0.03	0.75	17.50-19.50	8.00-10.5	/	0.10	/
304L	0.03	2.00	0.045	0.03	0.75	17.50-19.50	8.00-12.00	/	0.10	/
304H	0.10	2.00	0.045	0.03	0.75	17.50-19.50	8.00-10.5	/	0.10	/
309	0.20	2.00	0.045	0.03	0.75	22.00-24.00	12.00-15.00	/	/	/
309S	0.08	2.00	0.045	0.03	0.75	22.00-24.00	12.00-15.00	/	/	/
310	0.25	2.00	0.045	0.03	1.50	24.00-26.00	19.00-22.00	/	/	/
310S	0.08	2.00	0.045	0.03	1.50	24.00-26.00	19.00-22.00	/	/	/
316	0.08	2.00	0.045	0.03	0.75	16.00-18.00	10.00-14.00	2.00-3.00	0.10	/
316L	0.03	2.00	0.045	0.03	0.75	16.00-18.00	10.00-14.00	2.00-3.00	0.10	/
317	0.08	2.00	0.045	0.03	0.75	18.00-20.00	11.00-15.00	3.00-4.00	0.10	/
317L	0.035	2.00	0.045	0.03	0.75	18.00-20.00	11.00-15.00	3.00-4.00	/	/
321	0.08	2.00	0.045	0.03	0.75	17.00-19.00	9.00-12.00	/	0.10	/
347	0.08	2.00	0.045	0.03	0.75	17.00-19.00	9.00-13.00	/	/	/
409	0.03	1.00	0.04	0.02	1.00	10.50-11.70	11.70	0.50	/	0.03
410S	0.08	1.00	0.04	0.03	1.00	11.50-13.50	0.60	/	/	/
420	0.15	1.00	0.04	0.03	1.00	12.00-14.00	0.75	0.50	/	/
430	0.12	1.00	0.04	0.03	1.00	16.00-18.00	0.75	/	/	/
439	0.03	1.00	0.04	0.03	1.00	17.00-19.00	0.50	/	0.03	/
2205	0.03	2.00	0.03	0.02	1.00	22.00-23.00	4.50-6.50	3.00-5.00	0.14-0.20	/
2507	0.03	1.20	0.035	0.02	0.80	24.00-26.00	6.00-8.00	3.00-5.00	0.24-0.32	0.50
31803	0.03	2.00	0.03	0.02	1.00	21.00-23.00	4.50-6.50	2.50-3.50	0.08-0.20	/
253MA	0.08	0.80	0.04	0.03	1.60	21.00	11.00	/	0.17	/
254SMO	0.02	1.00	0.03	0.01	0.80	19.50-20.50	17.05-18.50	6.00-6.50	0.18-0.22	0.50-1.00
904L	0.02	2.00	0.045	0.035	1.00	19.00-23.00	23.00-28.00	4.00-5.00	0.10	1.00-2.00

Mechanical Property	Tensile Strength, min		Yield Strength, min		Elongation	Hardness, max
	ksi	Mpa	ksi	Mpa	/	Brinell.HBW	Rockwell
304	75	515	30	205	40	201	92HRBW
304L	70	485	25	170	40	201	92HRBW
304H	75	515	30	205	40	201	92HRBW
309	75	515	30	205	40	217	95HRBW
309S	75	515	30	205	40	217	95HRBW
310	75	515	30	205	40	217	95HRBW
310S	75	515	30	205	40	217	95HRBW
316	75	515	30	205	40	217	95HRBW
316L	70	485	25	170	40	217	95HRBW
317	75	515	30	205	35	217	95HRBW
317L	75	515	30	205	40	217	95HRBW
321	75	515	30	205	40	217	95HRBW
347	75	515	30	205	40	201	92HRBW
409	55	380	25	170	20	179	88HRBW
410S	60	415	30	205	22	183	89HRBW
420	100	690	/	/	15	217	96HRBW
430	65	450	30	205	22	183	89HRBW
439	60	415	30	205	22	183	89HRBW
2205	95	655	65	450	25	293	31HRC
2507	116	795	80	550	15	310	32HRC
31803	90	620	65	450	25	293	31HRC
253MA		600	310	310	40	217	95HRBW
254SMO	100	690	45	310	35	233	96HRBW
904L	71	490	31	220	35	/	90HRBW

304 is considered the most versatile, most widely used austenitic stainless steel, which shows high strength, excellent corrosion resistance and outstanding formability. This grade is very ductile due to lower carbon content, and can be easily cold worked by roll forming, deep drawing, and bending. In addition, 304 is available in more forms and finishes than any other grade of stainless steel. This grade commonly shows up in the oil and gas and food service industries.

304L stainless steel has many of the same mechanical properties of 304 stainless steel. This grade is an extra-low carbon variant of 304. It has 0.03% maximum carbon content. Which helps to remove the carbide precipitation that occurs during the welding process. Because of these characteristics, the 304L stainless steel can be used in the “as welded” condition, even in highly corrosive conditions.

Unlike 304 and 304L, 304H is an austenitic stainless steel and the higher carbon content delivers an increased tensile and yield strength. However, because of its high carbon content, 304H stainless steel is subject to carbide precipitation in the heat affected zone of welds. This grade is more suitable for use in applications where elevated temperatures are present, such as industrial boilers, pressure vessels etc.

309 is a austenitic chromium-nickel stainless steel, it contains chromium 23%, nickel 14%. Due to their high chromium and nickel content, 309 stainless steel is highly corrosion resistant, have outstanding resistance to oxidation, and excellent heat resistance while providing good strength at room and elevated temperatures. It is widely applied in boiler baffles, oven linings, and other high temperature containers.

309S is an extra-low carbon variant of 309. Due to a lower carbon content, that minimizes carbide precipitation and improves weldability. Other than this slight variation in its composition 309S stainless steel has many of the same mechanical properties of 309 stainless steel. They can be roll formed, stamped and drawn readily. In-process annealing is usually required to reduce hardness and increase ductility.

310 is a multi-purpose austenitic heat resistant stainless steel. Great ductility with oxidation resistance under mildly cyclic conditions to 2010°F (1100°C). In addition, The grade has good aqueous corrosion resistance due to high chromium content (19-22%). 310 stainless steel is the ideal choice for projects that require service at high temperature corrosion resistant applications.

310S stainless steel is the lower carbon version of 310 grade which is less prone to embrittlement and sensitization in service. The grade contains 25% chromium and 20% nickel, making it highly resistant to oxidation and corrosion. Besides, it is used in temperatures up to 2,100℉ in continuous service, ideally suited for high-temperature applications such as heat treatment and chemical processing equipment.

316 stainless is one of the more popular austenitic stainless steel. Not only does the grade have strong forming and welding characteristics, but it has the ability to fold or roll so it can be easily transformed into a number of applications. It is widely used in the ship bulding, heat exchangers industry etc. In addition, 316 stainless steel has 2.00-3.00% molybdenum-bearing content, making it a fair bit more resilient to corrosive abuse than most other stainless teel grade.

316L is very similar to 316 stainless steel, just contain lower levels of carbon. It is an austenitic steel which will become slightly magnetic after significant cold working. In addition, the lower carbon contont make this grade immune from sensitisation or grain boundary carbide precipitation, and easier to machine. Because of these unique property, 316L stainless steel tends to be commonly used in heavy gauge welding situations.

321 is a basic austenitic stainless steel. The grade is stabilized with titanium which results in excellent resistance to intergranular corrosion following exposure to temperatures in the chromium carbide precipitation range from 800 to 1500°F. 321 stainless steel can be polished to some degree but is not recommended for decorative applications. It is commonly used in heat exchangers, heating element tubing, even the aerospace industry.

321H is the higher carbon version of the 321 stainless steel. The grade contains between 0.04% and 0.10% carbon. It was developed for enhanced creep resistance and for higher strength at temperatures above 1000°F. 321H can be used in various industries such as chemical processing, waste treatment, petroleum refining etc.. Aerospace also applies, especially piston engine manifolds.

2205 grade is one of the most widely used ferritic and austenitic duplex stainless steel. It is available in many forms and finishes, such as coil, sheet, plate etc. 2205 duplex stainless stands-up excellently in a range of atmospheric environments even when exposed to corrosive elements, specifically to sea water. It can be used in chemical processing, transport, and storage for a variety of industries due to both its excellent corrosion resistance and high strength.

2507 is a super duplex stainless steel with 25% chromium, 4% molybdenum, and 7% nickel. The high chromium, molybdenum, and nickel levels makes it extremely resistant to uniform corrosion by organic acids like formic and acetic acid. The 2507 super duplex stainless steel is designed for demanding applications which require exceptional strength and corrosion resistance, such as chemical process, petrochemical, and seawater equipment.

904L is a very low carbon contain austenitic stainless steel. The grade has good resistance to pitting and crevice corrosion capabilities, very high stress corrosion cracking capacity, good intergranular corrosion resistance property, good processability and solderability. 904L austenitic stainless steel designed for the harsh corrosion conditions. It has applications in pipe systems, water treatment, heat exchangers.

MORE DETAILS ABOUT EACH Stainless Steel Coil PROCESS

Hot Rolled
Cold Rolled

Hot rolling is a metalworking process. Such as steel ingots or billets are difficult to deform and process at room temperature, they are generally heated to 1100 to 1250° for rolling, this rolling process is called hot rolling. Most steel materials are rolled by hot rolling, the steel delivered in the hot-rolled state has a certain degree of corrosion resistance due to the high temperature, so it can bestored in the open air. In addition, hot rolling is that it can destroy the casting structure of the ingot, refine the grain of the steel, eliminate structural defects, make the steel structure dense, and improve the hardness of the hot rolled steel.

Cold rolling refers to a rolling process that uses the pressure of rolls to squeeze steel to change the shape of the steel at room temperature. The advantafe of cold rolling is fast forming speed, high output, the coating is not damaged, and it can be made into a variety of cross-sectional forms to meet the needs of the use conditions. In addition, cold rolling can cause large plastic deformation of the steel, thereby increasing the yield point of the steel. Which is Widely used in home appliances and other industries.

MORE DETAILS ABOUT EACH Stainless Steel Coil SURFACE

NO.1
2D
2B
NO.4
BA
HL
Mirror

NO.1 surface treated by heat treatment and pickling after hot rolling. The appearance is silver white, matt and bright. This surface is suitable for industries that require heat resistance and corrosion resistance, and the surface brightness is not important. Common applications include industrial tank and chemical industrial plants etc..

2D surface treated by heat treatment and pickling after cold rolling. The appearance is silver white, smoother but of matt grain. Common applications include petrochemical production equipment, automotive components, building materials and water pipes etc..

After 2D treatment, the final process is lightly cold rolled by a polishing roller to obtain proper gloss. The appearance is smooth and bright, and easy to re-grind to make the surface more brighter. Common applications include building materials, tableware etc..

NO.4 is a product ground with a grinding belt of size 150-180. It has better gloss, discontinuous rough lines and finer stripes than No.3 stainless steel castings commonly used polished and sanded surfaces. Common applications include food processing equipment, home electrical products, medical equipment etc..

BA surface is also produced by cold rolling and de-scaling. It has excellent surface gloss, high reflectivity. In addition, The very smooth surface also makes this surface highly suitable for further finishing processes such as mirror polishing and chrome plating. Common applications include catering equipment etc..

HL use a polishing abrasive belt with an appropriate particle size (150-320 mesh) to grind, with obvious straight stripes. The surface is beautiful, good texture and scratch is not obvious, durable, wear-resistant. Common applications include building decoratio, elevators, vehicle parts, etc..

Mirror is produced by polishing with successively finer abrasives and buffing extensively until all grit lines from preliminary grinding operations are removed. The feature is highest reflectivity. Mainly used for interior and exterior decoration materials of automobiles and buildings.

FREQUENTLY ASKED QUESTIONS

What Is Stainless Steel Coil?
What Are The Classes Of Stainless Steel Coil Grade?
Whether The Stainless Steel Coil Can Be Processed?

What Is Stainless Steel Coil?

Answer:

Stainless steel coil is one of the most sought raw material in the construction and manufacturing industries, manufactured by hot rolling stainless steel slabs in a 1100° C to 1300° C high temperature reheat furnace. That is, the stainless steel slabs are continuously run through heating and rolling mills, then suitably coiled resultant product, and passed through the annealing and pickling to get brighter surface stainless steel coil.

What Are The Classes Of Stainless Steel Coil Grade?

Answer:

It can be used in many industries, the chief difference in application is based on the grade. Grades of stainless steel coil are organized by their crystalline structure, mainly divided into martensitic, ferritic, austenitic, duplex, and precipitation-hardening.

Whether The Stainless Steel Coil Can Be Processed?

Answer:

Yes, of course. Stainless steel coil can be slit. Ronsco has advanced slitting equipment. The equipment can achieve comprehensive processing capabilities from cold rolling to hot rolling, from ultra-wide to narrow coils. Which can meet the processing requirements of different customer needs.

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