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UNS S31703 stainless

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Stainless Steel Plate

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UNS S31703 stainless

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.

Factory video

Shandong Mingding Supply Chain Management Service Co., Ltd. was established in 2013, focusing on the production, processing and trade of metal materials. We have a professional team to provide quality service, we sincerely welcome customers at home and abroad to visit our company for guidance and long-term cooperation.

Warehouse storage

The company has the most advanced production equipment and automatic control system, to ensure the most reliable product quality. In addition, we also have a professional international trade and logistics team. With quality products and excellent service, we have established a large number of long-term customers all over the world.

Packing and delivery

To better ensure the safety of your goods, professional, environmentally friendly, convenient and efficient packaging services will be provided.

Production Technology

Our main products include high quality carbon steel, stainless steel products,galvanized steel products, aluminum and copper. We can also provide cutting, punching, bending, polishing, shearing, wire drawing and other related service.

Honor

Application

Our company is set production processing and trade as one. The company has the most advanced production equipment and automatic control system, to ensure reliable product quality and sufficient supply capacity. Our main products are stainless steel, silicon steel, galvanized steel, carbon steel, aluminum products and other series. Applicable to engineering, coal mining, shipping, aviation, boiler, machinery, military and other fields. We sincerely welcome customers from all over the world to visit our company to discuss long-term cooperation.

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FAQ

How do you package the product?

The inner layer is covered with waterproof paper, packed in iron and secured by fumigated wooden brackets. It can effectively protect products from corrosion in the process of sea sample transportation.

Are the products inspected before shipment?

Of course. All our products go through strict quality tests before they are packed. Those that fail will be destroyed.

Can I visit your factory?

Of course. We welcome customers from all over the world to visit our factory.

What certifications have your products passed?

We have ISO 9001, SGS, EWC and other certifications.

Can you provide samples?

Of course, we can send samples all over the world. Our samples are free of charge, but the customer needs to bear the Courier charge

What is the loading port?

Normally, we ship from Shanghai, Tianjin, Qingdao and Ningbo ports. You can choose other ports according to your needs.

Stainless Steel Plate