1. What is a stainless steel coil/strip?
The specific metal material known as stainless steel coil has a wide variety of distinct qualities and uses. It is mainly used to make different stainless steel items and components. It is processed and rolled from stainless steel sheets.
Stainless steel coils are divided into austenitic, ferrite, martensite, dual-phase (ferrite-austenite) stainless steel cold-rolled coils, and stainless steel hot-rolled coils.
Stainless steel coils are used extensively in construction, automotive, manufacturing, and other industries because of their advantages in terms of corrosion resistance, high-temperature oxidation resistance, and ease of processing.
2. Chemical composition of stainless steel coil/strip
| Grade | C (Max) | Mn (Max) | P (Max) | S (Max) | Si (Max) | Cr | Ni | Mo | Nitrogen (Max) | Cu/ Others |
| 201 | 0.15 | 5.50/7.50 | 0.06 | 0.030 | 1.0 | 16.0/18.0 | 3.5/5.5 | - | - | n-25 max |
| 202 | 0.15 | 7.50/10.0 | 0.06 | 0.030. | 1.0 | 17.0/19.0 | 4.0/6.0 | - | - | n-25 max |
| JS- 203 | 0.08 | 9.2510.25 | 0.070 | 0.030 | 0.75 | 14.25 - 15.25 | 2.25 - 2.75 | - | - | 1.60- 2.0 |
| 301 | 0.15 | 2.00 | 0.045 | 0.030 | 1.00 | 16.00 - 18.00 | 6.00 - 8.00 | - | 0.10 | - |
| 301M | 0.10 | 4.55.5 | 0.060 | 0.030 | 0.75 | 14.50 - 15.50 | 6.0 - 7.0 | - | - | 1.70- 1.90 |
| 304 | 0.08 | 2.00 | 0.045 | 0.030 | 0.75 | 18.00 - 20.00 | 8.00- 10.50 | - | 0.10 | - |
| 304L | 0.030 | 2.00 | 0.045 | 0.030 | 0.75 | 18.00 - 20.00 | 8.00- 12.00 | - | 0.10 | - |
| 309s | 0.08 | 2.0 | 0.045 | 0.030 | 1.0 | 22.0/24.0 | 12.0/15.0 | |||
| 310 | 0.25 | 2.0 | 0.045 | 0.030 | 1.50 | 24.0/26.0 | 19.0/22.0 | |||
| 310S | 0.08 | 2.00 | 0.045 | 0.030 | 1.50 | 24.00- 26.00 | 19.00 - 22.00 | - | - | - |
| 316 | 0.08 | 2.00 | 0.045 | 0.030 | 0.75 | 16.00 - 18.00 | 10.00 - 14.00 | 2.00 - 3.00 | 0.10 | - |
| 316L | 0.030 | 2.00 | 0.045 | 0.030 | 0.75 | 16.00 - 18.00 | 10.00 - 14.00 | 2.00 - 3.00 | 0.10 | - |
| 317 | 0.08 | 2.00 | 0.045 | 0.030 | 0.75 | 18.00 - 20.00 | 11.00 - 14.00 | 3.00 - 4.00 | 0.10 | - |
| 317L | 0.030 | 2.00 | 0.045 | 0.030 | 0.75 | 18.00 - 20.00 | 11.00 - 15.00 | 3.00 - 4.00 | 0.10 | - |
| 321 | 0.08 | 2.00 | 0.045 | 0.030 | 0.75 | 17.00 - 19.00 | 9.00 - 12.00 | - | 0.10 | Ti5 ( C + N ) Min or 0.70 max |
| 347 | 0.08 | 2.00 | 0.045 | 0.030 | 0.75 | 17.00 - 19.00 | 9.00 - 13.00 | - | - | Cb= 10x ( C Min ) or 1.00 Max |
| 409 | 0.08 | 1.00 | 0.040 | 0.010 | 1.00 | 10.50 - 11.75 | 0.50 | - | - | Ti= 6x (C+ N ) Min or 0.70 Max |
| 409M | 0.03 | 0.81.2 | 0.030 | 0.030 | 0.40.75 | 11.00- 12.00 | 1.5 max. | - | - | Ti= 6x (C) Min or 0.70 Max |
| 410S | 0.08 | 1.00 | 0.040 | 0.030 | 1.00 | 11.50- 13.50 | 0.60 | - | - | - |
| 410 | 0.15 | 1.00 | 0.040 | 0.030 | 1.00 | 11.50- 13.50 | 0.75 | - | - | - |
| 420 | 0.35 | 0.50 | 0.035 | 0.015 | 0.50 | 12.00 - 13.00 | 0.20.3 | - | - | - |
| 440A | 0.60/0.70 | 1.0 | 0.040 | 0.030 | 1.0 | 16.0/18.0 | - | - | - | - |
| 440B | 0.75,0.95 | 1.0 | 0.040 | 0.030 | 1.0 | 16.0/18.0 | - | - | - | - |
| 440C | 0.95, 1.2 | 1.0 | 0.040 | 0.030 | 1.0 | 16.0/18.0 | - | - | - | - |
| 430 | 0.12 | 1.00 | 0.040 | 0.030 | 1.00 | 16.00 - 18.00 | 0.75 | - | - | - |
| JSL AUS | 0.08 | 7.08.0 | 0.070 | 0.030 | 0.75 | 15.50 - 16.50 | 4.25 - 4.75 | - | - | 0.9 - 1.10 |
| 904L | 0.02 | 2.00 | 0.030 | 0.045 | 1.00 | 19.0-23.0 | 23.0-28.0 | - | - | 23.0-28.0 |
| 2205 | 0.03 | 2.00 | 0.030 | 0.020 | 1.00 | 21.0-23.0 | 4.5-6.5 | 4.5-6.5 | ||
| 2207 | 0.030 | 1.20 | 0.035 | 0.020 | 0.30 | 24.0-26.0 | 6.0-8.0 | - | - | 6.0-8.0 |
| * Thickness of 1.27mm & below will have elongation of 20% min. | ||||||||||
3. Mechanical properties of stainless steel coil/strip
Yield point (σs)
When the steel or sample is stretched, when the stress exceeds the elastic limit, even if the stress no longer increases, the steel or sample continues to undergo significant plastic deformation. This phenomenon is called yielding, and the minimum stress value when yielding occurs is for the yield point. Assume Ps is the external force at the yield point s, Fo is the cross-sectional area of the sample, and then the yield point σs = Ps/Fo (MPa).
Yield strength (σ0.2)
The yield point of some metal materials is extremely unclear and difficult to measure. Therefore, in order to measure the yield characteristics of the material, the stress when the permanent residual plastic deformation is equal to a certain value (usually 0.2% of the original length) is specified, which is called the condition. Yield strength or simply yield strength σ0.2.
Tensile strength (σb)
The maximum stress value reached by the material from the beginning to the time of fracture during the stretching process. It indicates the steel's ability to resist fracture. Corresponding to tensile strength are compressive strength, flexural strength, etc. Assuming that Pb is the maximum tensile force reached before the material is broken, Fo is the cross-sectional area of the sample, then the tensile strength σb = Pb/Fo (MPa).
Elongation (δs)
After the material is pulled apart, the percentage of its plastic elongation length to the original sample length is called elongation or elongation.
Yield-strength ratio (σs/σb)
The ratio of the yield point (yield strength) of a material to its tensile strength is called the yield ratio. The larger the yield-strength ratio, the higher the reliability of structural parts. Generally, the yield-strength ratio of carbon steel is 0.6-0.65, and that of low-alloy structural steel is 0.65-0.75. Alloy structural steel is 0.84-0.86.
Hardness
Hardness indicates a material's ability to resist hard objects pressing into its surface. It is one of the important performance indicators of metal materials. Generally, the higher the hardness, the better the wear resistance. Commonly used hardness indicators include Brinell hardness, Rockwell hardness, and Vickers hardness.
| Type | Temper | Nominal Mechanical Properties | |||
|---|---|---|---|---|---|
| Tensile PSI | Yield PSI | Elong. % In 2" | Rockwell Hardness | ||
| 304 | Annealed | 85,000 | 35,000 | 55 | RB80 |
| 1/8 Hard | 105,000 | 75,000 | 20 | RB95 | |
| 304 L | Annealed | 80,000 | 30,000 | 55 | RB75 |
| 1/8 Hard | 105,000 | 75,000 | 20 | RB95 | |
| 304H | Annealed | 85,000 | 35,000 | 55 | RB80 |
| 310 | Annealed | 95,000 | 45,000 | 45 | RB85 |
| 316 | Annealed | 85,000 | 35,000 | 50 | RB80 |
| 316L | Annealed | 80,000 | 30,000 | 50 | RB75 |
| 316H | Annealed | 85,000 | 35,000 | 50 | RB80 |
| 317 | Annealed | 90,000 | 40,000 | 45 | RB85 |
| 321 | Annealed | 90,000 | 35,000 | 55 | RB80 |
| 1/8 Hard | 105,000 | 75,000 | 20 | RB95 | |
| 347 | Annealed | 95,000 | 40,000 | 50 | RB85 |
| 21-6-9 | Annealed | 100,000 | 60,000 | 45 | RB90 |
| 1/8 Hard | 142,000 | 120,000 | 20 | RC30 | |
| 416 | Annealed | 75,000 | 35,000 | 20 | RB95 |
4. Physical properties of stainless steel coil/strip
Corrosion resistance, heat resistance, weldability, polishing performance, plasticity, tensile strength
| Specific Heat (0-100°C) | 500 | J.kg-1.°K-1 |
| Thermal Conductivity | 16.3 | W.m -1.°K-1 |
| Thermal Expansion | 15.9 | μm/μm/°C |
| Modulus Elasticity | 193 | GPa |
| Electrical Resistivity | 7.4 | Ohm-cm |
| Density | 7.99 | g/cm3 |
5. Specifications of stainless steel coil/strip
Being a trustworthy stainless steel coil/strip manufacturer and supplier, Shanghai Yinggui Metal Pbaructs Company aims to make manufacturing easier for our business partners. Shanghai Yinggui Metal offers 304, 316, 316L, 317L, 310S, 440C, 904L, S31050 etc.
| Product Name | cold rolled stainless steel coil/strip/circle |
| Grade | 200/300/400 Series |
| Model Number | 201/304/409/410 |
| Standard | A240M, EN10088-2, JIS, GB3280 |
| Thickness | 0.1-1.5mm |
| Width Range | 10-1000-1250mm |
| Surface Finish | 304 BA / NO.4 / 2B / 304L 2B. 304 2D (1/2H, 3/4H, H) / 304 (1/2H, 3/4H, H) |
| Export to | India, Indonesia, Japan, Korea, Pakistan, Russia, Turkey, Vietnam, etc. |
| Application | Hypodermic needle, Hose clamp, Spiral spring, Flexible hose, Button battery, Computer fittings, Cell phone parts, Stamping parts, Photo etching, Electronics, Bathroom decoration, Elevator decoration, Hotel decoration, Kitchen equipment, Kitchen sink, etc. |
| Lead time | Abt 30 days (Please confirm with the seller before placing an order) |
| Payment terms | T/T, L/C, D/P |
| Packing | Factory standard export packing (according to customer's request) |
6. Applications and characteristics of stainless steel coil/strip
Characteristics of stainless steel coils
1. good corrosion resistance: Stainless steel coils can be utilized for a long time in humid, acidic, and alkaline situations due to their good corrosion resistance. 2. High-temperature oxidation resistance: In high-temperature situations, stainless steel coils can maintain stable mechanical qualities and oxidation resistance. 3. Processing simplicity: Stainless steel coils are simple to cut, bend, and weld and can be formed into a variety of shapes.
Uses of stainless steel coils
1. The employment of stainless steel rolls in the construction industry creates attractive, long-lasting, and easy-to-clean roofs, walls, doors, and windows.
2. The stainless steel coils have great strength and outstanding mechanical qualities, making them suitable for usage in vehicle bodywork, exhaust pipes, and other parts.
3. The manufacturing sector: Stainless steel coils are frequently used in kitchenware, household appliances, elevators, and other products, satisfying consumer demands for quality and hygienic standards.
Stainless steel coil production process
1. Cold rolling: The hot-rolled slab is rolled into stainless steel coils through a cold rolling mill, which has a high surface finish and dimensional accuracy.
2. Hot rolling: The steel plate is heated to a certain temperature and then rolled to form a stainless steel coil, which has high strength and plasticity.
3. Cold drawing: The hot rolled coil is rolled into a stainless steel coil through a drawing machine, which improves the dimensional accuracy and surface quality.
The majority of requirements for using stainless steel tape are to keep the building's original appearance for an extended period of time.
The primary factors to take into account while choosing a type of stainless steel coil are the necessary aesthetic requirements,
the environment's propensity for corrosion, and the cleaning regimen to be used. Other applications are increasingly looking for impermeability or
structural integrity.
For instance, the roofs and side walls of commercial structures. The owner's construction costs may be more significant in some applications than aesthetics, and the surface's cleanliness may not be as important. In dry interior situations, 304 stainless steel works pretty well.
7. Main stainless steel product brand list
| Category | China | United States | Japan | Europe |
| Martensitic Stainless Steel | Cr13 model | 410 | SUS410 | SAF2301 |
| 1Cr17Ni2 | 431 | SUS431 | SAF2321 | |
| 9Cr18 | 440C | SUS440C | ||
| 0Cr17Ni4Cu4Nb | 17-4PH | SUH630 | ||
| 1Cr12Ni3MoWV | XM32 | DIN1.4313 | ||
| 2Cr12MoVNbN | SUH600 | |||
| 2Cr12NiMoWV | SUH616 | |||
| Duplex Steel | 00Cr18Ni5Mo3Si2 | S31500 | 3RE60 | |
| 00Cr22Ni5Mo3N | S31803 | 329J3L1 | SAF2205 | |
| 00Cr25Ni6Mo2N | 329J1L1R-4 | |||
| 00Cr25Ni7Mo3N | S31260 | 329J4L | SAF2507 | |
| 00Cr25Ni6Mo3CuN | S32550 | |||
| Special Alloy | ZG40Cr25Ni20 | HK | ||
| ZG45Ni35Cr27N6 | KP | |||
| ZG50N148Cr28W5 | ||||
| ZGN136Cr26Co15W5 | ||||
| ZG10Ni32Cr20Nb | ||||
| ZG45Ni48Cr28W5Co5 | ||||
| Ferrite | 0Cr13 | 410S | SUS410S | |
| 00Cr17Ti | ||||
| 00Cr18Mo2Ti | ||||
| Austenitic Stainless Steel | 0Cr18Ni9Ti | 321 | SUS321 | SAF2337 |
| 00Cr19Ni10 | 304L | SUS304L | ||
| 0Cr17Ni12Mo2 | 316 | SUS316 | SAF2343 | |
| 0Cr17Ni14Mo2 | 316L | SUS312L | ||
| 00Cr19Ni13Mo3 | 317L | SUS317L | ||
| ZG00Cr19Ni10 | CF3 | SCS19A | ||
| ZG00Cr17Ni14Mo2 | CF3M | SCS16A | ||
| 0Cr25Ni20 | 310S | SUS310S | ||
| 00Cr20Ni18Mo6CuN | S31254 | 254SMO | ||
| 00Cr20Ni25Mo4.5Cu | 904L | 2RK65 | ||
| 00Cr25Ni22MoN | S31050 | 2RE69 | ||
| Alloy Steel | Various high-quality alloy sheets of steel, tool and die steels, low-temperature steels, pressure vessel steels, ASME specification materials, wire rods, plates, TIG welding wire, and covered electrodes. | |||
