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ABOUT USThe company can also deliver goods directly from the steel plant according to customer needs, thus saving landing costs and reducing costs and prices. In line with the service purpose of moving house and considering the needs
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PRODUCT CENTERWith strong financial strength, we have set up large factories and warehouses in more than 10 cities across the country, with a stock of more than 100000 tons, saving customers procurement time, ensuring customers' production
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NEWSWith strong financial strength, we have set up large factories and warehouses in more than 10 cities across the country, with a stock of more than 100000 tons, saving customers procurement time, ensuring customers' production
UNS S31703 stainless
Classification :
PRODUCT DETAILS
Product information
317L is molybdenum-bearing austenitic stainless steel with greatly increased resistance to chemical attack as compared to the conventional chromium-nickel austenitic stainless steels such as Type 304. 317L alloy also offers higher creep, stress-to-rupture, and tensile strength at elevated temperatures than conventional stainless steels. The alloy has low carbon to provide resistance to sensitization during welding and other thermal processes. This alloy is intended for severe service conditions such as flue gas desulfurization (FGD) systems.
Technical data
Chemical Composition - Stainless Steel 317/317L
| Grade | 317 | 317L |
|---|---|---|
| UNS Designation | S31700 | S31703 |
| Carbon (C) Max. | 0.08 | 0.035* |
| Manganese (Mn) Max. | 2.00 | 2.00 |
| Phosphorous (P) Max. | 0.040 | 0.04 |
| Sulphur (S) Max. | 0.03 | 0.03 |
| Silicon (Si) Max. | 1.00 | 1.00 |
| Chromium (Cr) | 18.0–20.0 | 18.0–20.0 |
| Nickel (Ni) | 11.0–14.0 | 11.0–15.0 |
| Molybdenum (Mo) | 3.0–4.0 | 3.0–4.0 |
| Nitrogen (N) | — | — |
| Iron (Fe) | Bal. | Bal. |
| Other Elements | — | — |
Typical Mechanical Properties- Stainless Steel 317L
| Material | Ultimate Tensile Strength (Mpa) | 0.2 % Yield Strength (Mpa) | % Elongation in 2" | Rockwell B Hardness |
| Alloy 317 | 515 | 205 | 35 | 95 |
| Alloy 317L | 515 | 205 | 40 | 95 |
| Minimum Mechanical Properties by ASTM A240 and ASME SA 240 | ||||
| Physical Properties | Metric | English | Comments |
| Density | 8 g/cc | 0.289 lb/in³ | |
| Mechanical Properties | |||
| Hardness, Brinell | Max 217 | Max 217 | ASTM A240 |
| Tensile Strength, Ultimate | Min 515 MPa | Min 74700 psi | ASTM A240 |
| Tensile Strength, Yield | Min 205 MPa | Min 29700 psi | ASTM A240 |
| Elongation at Break | Min 40 % | Min 40 % | ASTM A240 |
| Modulus of Elasticity | 200 GPa | 29000 ksi | |
| Electrical Properties | |||
| Electrical Resistivity | 7.9e-005 ohm-cm | 7.9e-005 ohm-cm | |
| Magnetic Permeability | 1.0028 | 1.0028 | fully annealed 0.5″ plate; 1.0028 65% cold-worked 0.5″ plate |
317L(1.4438) General Property
Alloy 317LMN and 317L are molybdenum-bearing austenitic stainless steel tube with greatly increased resistance to chemical attack as compared to the conventional chromium-nickel austenitic stainless steel pipe such as Alloy 304. In addition, 317LMN and 317L alloys offer higher creep, stress-to-rupture, and tensile strengths at elevated temperatures than conventional stainless steels. All are low carbon or "L" grades to provide resistance to sensitization during welding and other thermal processes.
The "M" and "N" designations indicate that the compositions contain increased levels of molybdenum and nitrogen respectively. The combination of molybdenum and nitrogen is particularly effective in enhancing resistance to pitting and crevice corrosion, especially in process streams containing acids, chlorides, and sulfur compounds at elevated temperatures. Nitrogen also serves to increase the strength of these alloys. Both alloys are intended for severe service conditions such as flue gas desulfurization (FGD) systems.
In addition to excellent corrosion resistance and strength properties, the Alloys 316, 316L, and 317L Cr-Ni-Mo alloys also provide the excellent fabricability and formability which are typical of the austenitic stainless steel tubing .
317L (1.4438) Heat Treatment
Annealing
The austenitic stainless steel pipe are provided in the mill annealed condition ready for use. Heat treatment may be necessary during or after fabrication to remove the effects of cold forming or to dissolve precipitated chromium carbides resulting from thermal exposures. For the Alloys 316 and 317L the solution anneal is accomplished by heating in the 1900 to 2150°F (1040 to 1175°C) temperature range followed by air cooling or a water quench, depending on section thickness. Cooling should be sufficiently rapid through the 1500 to 800°F (816 to 427°C) range to avoid reprecipitation of chromium carbides and provide optimum corrosion resistance. In every case, the metal should be cooled from the annealing temperature to black heat in less than three minutes.
Forging
The recommended initial temperature range is 2100-2200°F (1150-1205°C) with a finishing range of 1700-1750°F (927-955°C).
Annealing
317LMN and Alloy 317L stainless steels can be annealed in the temperature range 1975-2150°F (1080-1175°C) followed by an air cool or water quench, depending on thickness. Plates should be annealed between 2100°F (1150°C) and 2150°F (1175°C). The metal should be cooled from the annealing temperature (from red/white to black) in less than three minutes.
Hardenability
- These grades are not hardenable by heat treatment.
- Alloys 316 and 317L stainless steel tube cannot be hardened by heat treatment.
FAQ
Q:Will you delivery the goods on time?
A:Yes,we promise to provide best quality products and delivery on time.Honesty is our company's tenet.
Q:Do you provide samples?is it free or extra?
A:The sample could can provide for customer with free,but the courier freight will be covered by customer account.
Q:Do you accept the third party inspection?
A:Yes absolutely we accept.
Q:What are your main products?
A:Carbon steel,alloy steel,stainless steel plate/coil,pipe and fittings,sections etc.
Q：Can you accept the order of customzied?
A：Yes,we assure.
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Factory appearance and appearance
With strong financial strength, we have set up large factories and warehouses in more than 10 cities across the country, with a stock of more than 100000 tons, saving customers procurement time, ensuring customers' production cycle and product quality, and being the quality partner of end customers.
Factory appearance and appearance
1. Samples may be provided by the seller and freight borne by the buyer.
2. We have full stock,and can deliver within short time. Many styles for your choices.
3. Good Quality + Factory Price + Quick Response + Reliable Service, is what we are trying best to offer you.
4. All of our products are produce by our professional workman and we have our high-work-effect foreign trade team, you can totally believe our service.
5. We have many years of experience in manufacturing and selling steel and we cherish every order from our honor.
Application field
The main supply fields are: aerospace, national defense equipment, military weapons, chemical industry, shipbuilding, nuclear energy, trains, containers, environmental protection, precision machining, auto parts, machinery, electronic products, molds, medical treatment Equipment, construction, decoration, etc.
Customer Visit Feedback
With 30 years of experience in R&D and production of high-quality steel, we have been selected as one of China's top 500 enterprises for 15 consecutive years. With strong financial strength, we have set up large factories and warehouses in more than 10 cities across the country, with a stock of more than 100000 tons
Honor
The company has adhered to the principle of quality first and service-oriented for many years, and has provided high-quality steel for key national projects such as steel structure engineering, highway and railway construction, hydropower stations, mines, and plant renovations.
COOPERATIVE PARTNER
FAQ
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:Do you have the products in stock?
A:We have the products in stock. Also, we can produce for your order.
Q5:Do you offer after-sales services?
A:Certainly. If you have any questions, please feel free to contact us. We shall certainly do it to your satisfaction.
Q6:What kind of work does your company do?
A:Our company is a professional manufacturer. We mainly produce stainless steel plate/coil/round rod, carbon steel plate/coil,galvanized plate/coil, PPGI coil, roofing sheet and so on.
Q1:Will you offer samples?
A:Yes. We will provide samples according to your needs and send them out within three days after receiving payment.
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.
Q7;What are the advantages of your company？
We have international advanced production equipment, large factory buildings, strong company strength, perfect products and reliable quality。
Q8： Are you a factory or trading company?
A;We are a factory specializing in the production of steel
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Email : phl@zgbaogangsteel.com
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