304 Stainless steel coil
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Stainless steel coil
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Product introduction
Stainless steel 304 and stainless steel 304L are also known as 1.4301 and 1.4307 respectively. 304 is the most versatile and widely used stainless steel. It is still sometimes referred to by its old name 18/8 which is derived from the nominal composition of 304 being 18% chromium and 8% nickel. 304 stainless steel is an austenitic grade that can be severely deep drawn. This property has resulted in 304 being the dominant grade used in applications like sinks and saucepans.
304L is the low carbon version of 304. It is used in heavy gauge components for improved weldability.
304H, a high carbon content variant, is also available for use at high temperatures.
Technical data
Chemical Composition
| C | Si | Mn | P | S | Ni | Cr | Mo | N | |
| SUS304 | 0.08 | 0.75 | 2.00 | 0.045 | 0.030 | 8.50-10.50 | 18.00-20.00 | － | 0.10 |
| SUS304L | 0.030 | 1.00 | 2.00 | 0.045 | 0.030 | 9.00-13.00 | 18.00-20.00 | － | － |
| 304H | 0.030 | 0.75 | 2.00 | 0.045 | 0.030 | 8.00-10.50 | 18.00-20.00 | - | - |
Mechanical Properties
| Grade | Tensile Strength (MPa) min | Yield Strength 0.2% Proof (MPa) min | Elongation (% in 50 mm) min | Hardness | |||
| Rockwell B (HR B) max | Brinell (HB) max | HV | |||||
| 304 | 515 | 205 | 40 | 92 | 201 | 210 | |
| 304L | 485 | 170 | 40 | 92 | 201 | 210 | |
| 304H | 515 | 205 | 40 | 92 | 201 | - | |
304H also has a requirement for a grain size of ASTM No 7 or coarser.
Physical Properties
| Grade | Density (kg/m3) | Elastic Modulus (GPa) | Mean Coefficient of Thermal Expansion (μm/m/°C) | Thermal Conductivity (W/m.K) | Specific Heat 0-100 °C (J/kg.K) | Electrical Resistivity (nΩ.m) | |||
| 0-100 °C | 0-315 °C | 0-538 °C | at 100 °C | at 500 °C | |||||
| 304/L/H | 8000 | 193 | 17.2 | 17.8 | 18.4 | 16.2 | 21.5 | 500 | 720 |
Approximate grade comparisons for 304 stainless steels
| Grade | UNS No | Old British | Euronorm | Swedish SS | Japanese JIS | ||
| BS | En | No | Name | ||||
| 304 | S30400 | 304S31 | 58E | 1.4301 | X5CrNi18-10 | 2332 | SUS 304 |
| 304L | S30403 | 304S11 | - | 1.4306 | X2CrNi19-11 | 2352 | SUS 304L |
| 304H | S30409 | 304S51 | - | 1.4948 | X6CrNi18-11 | - | - |
These comparisons are approximate only. The list is intended as a comparison of functionally similar materials not as a schedule of contractual equivalents. If exact equivalents are needed original specifications must be consulted.
Possible Alternative Grades
| Grade | Why it might be chosen instead of 304 |
| 301L | A higher work hardening rate grade is required for certain roll formed or stretch formed components. |
| 302HQ | Lower work hardening rate is needed for cold forging of screws, bolts and rivets. |
| 303 | Higher machinability needed, and the lower corrosion resistance, formability and weldability are acceptable. |
| 316 | Higher resistance to pitting and crevice corrosion is required, in chloride environments |
| 321 | Better resistance to temperatures of around 600-900 °C is needed…321 has higher hot strength. |
| 3CR12 | A lower cost is required, and the reduced corrosion resistance and resulting discolouration are acceptable. |
| 430 | A lower cost is required, and the reduced corrosion resistance and fabrication characteristics are acceptable. |
Warehouse Storage
With 13 years of experience in competitive steel products at home and abroad, to provide reliable services to global customers.The main products are steel pipe, steel plate, steel coil, steel rod, steel strip, section steel, silicon steel, stainless steel series, carbon steel series, aluminum products and so on. Products are widely used in precision instruments, aviation, ships, automobiles, home appliances, construction, bridges, boilers, highway guardrail and other industries.
Packing and shipping
Products are widely used in precision instruments, aviation, ships, automobiles, home appliances, construction, Bridges, boilers, highway guardrail and other industries. Annual sales of more than 6 million tons. Products are exported to more than 80 countries and regions. We have won the recognition of customers with good reputation and good service.
Application field
Our main products are steel pipe, steel plate, steel coil, steel strip, section steel, stainless steel series, carbon steel, galvanized color coating series, etc. Products are widely used in precision instruments, aviation, ships, automobiles, medical, construction, Bridges, boilers, parts processing and other industries.
Customer praise
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FAQ
Q1:Can you send samples?
A:Of course, we can provide customers with free samples and express shipping service to all over of the world.
Q2:What product information do I need to provide?
A:Please kindly provide the grade, width, thickness, surface treatment requirement should you have and quantities you need to purchase.
Q3:It's my first time to import steel products, can you help me with it?
A:Sure,we have agent to arrange the shipment, we will do it together with you.
Q4:What about product prices information?
A:Prices various according to periodic price changes of raw materials.
Q5:What ports of shipment are there?
A:Under normal circumstances, we ship from Shanghai, Tianjin, Qingdao, Ningbo ports, you can specify other ports according to your needs.
Q6:What is your terms of payment ?
A:Payment<=1000USD, 100% in advance. Payment>=1000USD, 30% T/T in advance ,balance before shipment or based on BL copy or LC at sight.
Q7.Do you provide custom made Products service?
A: Yes,if you have your own design , we can produce according to your specification and drawing.
Q8:What are the certifications for your products?
A:We have ISO 9001, MTC, third parties’ inspections are all available such SGS, BV ect.
Q9:How long does your delivery time take?
A:In general, our delivery time is within 7-15 days, and may be longer if the quantity is extremely large or special circumstances occur.
Q10: How many countries you already exported to?
A:We have exported to America, Canada, Brazil, Chile, Colombia, Russia, Ukraine, Thailand, Myanmar, Vietnam, India, Kenya, Ghana,somalia and other African countries.Our export experience is rich, we familiar with different market demands, can help customers avoid a lot of trouble.
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