Wholesale Grade 408 409 410 416 420 430 440 Cold Roll Stainless Steel Coil / Scrap Manufacturer and Supplier

Grade 408 409 410 416 420 430 440 Cold Roll Stainless Steel Coil / Scrap

Short Description:

Stainless steel features:
1. Complete specifications and diverse materials; 2. High dimensional accuracy, up to ±0.1mm; 3. Good surface quality, good brightness; 4. Strong corrosion resistance, high tensile strength and fatigue strength; 5. Stable chemical composition, pure steel, low inclusion content; 6. Good packaging, favorable price; 7. It can be done without calibration.

Steel Grade: 201, 202, 204, 301, 302, 303, 304, 304L, 309, 310, 310S, 316, 316L, 321, 408, 409, 410, 416, 420, 430, 440, 630, 904, 904L, 2205,2507, etc

Standard: JIS, AISI, ASTM, DIN, EN, GB, JIS

Length: as your request

Width: 1000, 1219, 1500, 1800, 2000mm or as your request

Surface Finish: BA/2B/NO.1/NO.3/NO.4/8K/HL/2D/1D

Certification: ISO

Package: Standard sea-worthy package or as required

Delivery time : Shipped in 7-15 days after payment

Payment Terms: T/T, LC, Western Union, Paypal, O/A, DP

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Product Detail

Product Tags

Product Detail

Product Name	stainless steel coil
Hardness	190-250HV
Thickness	0.02mm-6.0mm
Width	1.0mm-1500mm
Edge	Slit/Mill
Quantity Tolerance	±10%
Paper Core Internal Diameter	Ø500mm paper core, special internal diameter core and without paper core on customer request
Surface Finish	NO.1/2B/2D/BA/HL/Brushed/6K/8K Mirror,etc
Packaging	Wooden Pallet/Wooden Case
Payment Terms	30% TT deposit and 70% balance before shipment, 100% LC at sight
Delivery Time	7-15 working days
MOQ	200Kgs
Shipping Port	Shanghai/Ningbo port

Main Application

Stainless steel coil has various applications in different industries including:

1. Construction: Stainless steel coil is used in construction to make roofing, cladding, and facades for buildings. It is also used for reinforcing bars, structural components, and bridges.

2. Automotive: Stainless steel coil is used in the production of exhaust systems, mufflers, and catalytic converters for automobiles.

3. Kitchenware: Stainless steel coil is commonly used to make cutlery, cookware, and kitchen appliances due to its resistance to corrosion, heat, and stains.

4. Medical: Stainless steel coil is used in medical equipment such as surgical instruments, implants, and diagnostic equipment due to its durability and biocompatibility.

5. Electronics: Stainless steel coil is used in electronics for components such as batteries, screens, and connectors due to its electrical conductivity and resistance to corrosion.

6. Aerospace: Stainless steel coil is used in the aerospace industry for applications such as aircraft frames, engine parts, and landing gears due to its strength, lightweight, and resistance to high temperatures.

7. Oil and gas: Stainless steel coil is used in the oil and gas industry for applications such as pipes, valves, and tanks due to its resistance to corrosion and high temperatures.

Note:
1.Free sampling, 100% after-sales quality assurance, Support any payment method;
2.All other specifications of round carbon steel pipes are available according to your requirement (OEM&ODM)! Factory price you will get from ROYAL GROUP.

Size Chart

Stainless Steel Coil Chemical Compositions

Chemical Composition %
Grade	C	Si	Mn	P	S	Ni	Cr	Mo
201	≤0 .15	≤0 .75	5. 5-7. 5	≤0.06	≤ 0.03	3.5 -5.5	16 .0 -18.0	-
202	≤0 .15	≤l.0	7.5-10.0	≤0.06	≤ 0.03	4.0-6.0	17.0-19.0	-
301	≤0 .15	≤l.0	≤2.0	≤0.045	≤ 0.03	6.0-8.0	16.0-18.0	-
302	≤0 .15	≤1.0	≤2.0	≤0.035	≤ 0.03	8.0-10.0	17.0-19.0	-
304	≤0 .0.08	≤1.0	≤2.0	≤0.045	≤ 0.03	8.0-10.5	18.0-20.0	-
304L	≤0.03	≤1.0	≤2.0	≤0.035	≤ 0.03	9.0-13.0	18.0-20.0	-
309S	≤0.08	≤1.0	≤2.0	≤0.045	≤ 0.03	12.0-15.0	22.0-24.0	-
310S	≤0.08	≤1.5	≤2.0	≤0.035	≤ 0.03	19.0-22.0	24.0-26.0
316	≤0.08	≤1.0	≤2.0	≤0.045	≤ 0.03	10.0-14.0	16.0-18.0	2.0-3.0
316L	≤0 .03	≤1.0	≤2.0	≤0.045	≤ 0.03	12.0 - 15.0	16 .0 -1 8.0	2.0 -3.0
321	≤ 0 .08	≤1.0	≤2.0	≤0.035	≤ 0.03	9.0 - 13 .0	17.0 -1 9.0	-
630	≤ 0 .07	≤1.0	≤1.0	≤0.035	≤ 0.03	3.0-5.0	15.5-17.5	-
631	≤0.09	≤1.0	≤1.0	≤0.030	≤0.035	6.50-7.75	16.0-18.0	-
904L	≤ 2 .0	≤0.045	≤1.0	≤0.035	-	23.0·28.0	19.0-23.0	4.0-5.0
2205	≤0.03	≤1.0	≤2.0	≤0.030	≤0.02	4.5-6.5	22.0-23.0	3.0-3.5
2507	≤0.03	≤0.8	≤1.2	≤0.035	≤0.02	6.0-8.0	24.0-26.0	3.0-5.0
2520	≤0.08	≤1.5	≤2.0	≤0.045	≤ 0.03	0.19 -0. 22	0. 24 -0 . 26	-
410	≤0.15	≤1.0	≤1.0	≤0.035	≤ 0.03	-	11.5-13.5	-
430	≤0.1 2	≤0.75	≤1.0	≤ 0.040	≤ 0.03	≤0.60	16.0 -18.0

Stainless Steel Coil Surface Finish

Through different processing methods of cold rolling and surface reprocessing after rolling, the surface finish of stainless steel coils can have different types.

The surface processing of stainless steel coils is important to improve their performance and appearance. Some common surface treatments for stainless steel coils include:

1. Pickling: This process involves soaking the stainless steel coil in an acid solution, such as nitric or hydrofluoric acid, to remove any surface impurities and improve its corrosion resistance.

2. Passivation: This process involves treating the stainless steel coil with a chemical solution, such as nitric acid or sodium dichromate, to remove any surface iron and improve its resistance to corrosion.

3. Electro-polishing: This process involves passing an electric current through the stainless steel coil while it is immersed in an electrolyte solution to remove any surface imperfections and improve its appearance.

4. Coating: Applying a protective coating, such as paint or powder coating, to the surface of the stainless steel coil can help improve its durability, scratch resistance, and appearance.

5. Embossing: This process involves stamping a pattern or texture onto the surface of the stainless steel coil to add visual interest and texture.

6. Brushing: Brushing the surface of the stainless steel coil with a wire brush can create a uniform, directional grain pattern that can add to its appearance.

The specific surface treatment chosen for a stainless steel coil will depend on the desired properties and application of the coil.

Process of Production

The production process of stainless steel coil is: raw material preparation - annealing and pickling - (intermediate grinding) - rolling - intermediate annealing - pickling - rolling - annealing - pickling - leveling (finished product grinding and polishing) - cutting, packaging and storage .