PRODEC® Type 316/316L Plate - AMS 5524, 5507

PRODEC® Type 316/316L is an improved version of standard Type 316/316L which provides more corrosion resistance and enhanced high temperature strength relative to type 304/304L. In 316P/316LP, the steel is processed with advanced ladle metallurgy techniques for improved machinability and outstanding uniformity. 316P/316LP maintains higher creep, stress rupture, and tensile strength at elevated temperatures than Type 304/304L.  316P/316LP is non-magnetic in the annealed condition, but may become slightly magnetic as a result of welding. 

PRODEC® Type 316/316L Inventory Size Ranges


0.1875" - 3.500"

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Working with  PRODEC® Type 316/316L

These materials offer faster machining speeds, longer tool life, improved part quality, and lower total cost of machined parts.  316P/316LP also provides improved resistance to pitting and crevice corrosion in environments containing chlorides and other halides.  

At UPM, we utilize precision cold saw cutting to minimize labor time and tooling expense.  Eliminate plasma or heat affected zones and receive square, parallel and machine ready parts.

Click here to learn more about our Precision Cold Saw Cutting process. 

Standard Inventory Specifications

  • UNS S31600
  • UNS S31603
  • AMS 5507
  • AMS 5524
  • ASTM A 240

Other industry standards we comply with:

All of our PRODEC® Type 316/316L plate is ordered to specific decimal thicknesses. Please contact us for more details.

Common Trade Names

  • T-316/L PRODEC®
  • Type 316/316L (™New Castle Stainless Plate LLC)
  • 316P/316LP

Common Applications of PRODEC® Type 316/316L

  • Chemical processing equipment
  • Fasteners
  • Food and beverage industry
  • Flanges and valves
  • Machined components
  • Water treatment

Chemical Composition

Chemical Composition of PRODEC® Type 316/316L Plate
Element Percent by Weight
C Carbon 0.08% max
Mn Manganese 2.00% max
P Phosphorus 0.045% max
S Sulfur 0.03% max
Si Silicon 0.75% max
Cr Chromium 16.0 - 18.0%
Ni Nickel 10.0 - 14.0%
Mo Molybdenum 2.00 - 3.00%
N Nitrogen 0.10% max
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Physical Properties of PRODEC® Type 316/316L Plate



0.285 lb/in³

Modulus of Elasticity, psi

29 x 10⁶

Coefficient of Thermal Expansion

8.9 x 10-6
68-212°F, /°F

Thermal Conductivity

8.7 Btu/h ft°F

Heat Capacity

0.12 Btu/lb°F

Electrical Resistivity

27.6 x 10-⁶ Ω-inch


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Mechanical Properties of PRODEC® Type 316/316L Plate

Hardening -PRODEC® Type 316/316L plate cannot be hardened by heat treatment. However, PRODEC® Type 316/316L plate can be hardened by cold working.

Annealing - PRODEC® Type 316/316L plate should be heated to 1900°F minimum, then water quenched or rapidly cooled by other means.

PRODEC® 316P/316LP Mechanical Properties at Room Temperature

  Typical ASTM 316  
Ultimate Tensile Strength, ksi 85 75 min 70 min
0.2% Offset Yield Strength, ksi 44 30 min 25 min
Elongation in 2 inches, % 56 40 min 40 min
Reduction in Area, % 69    
Hardness, Rockwell B 81 95 max 95 max


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Machinable Advantages of PRODEC® Plate

Today’s manufacturers are on a constant search for savings.  While most manufacturers quickly turn to material costs as a primary means of lowering their price, these short-term accommodations are not always sustainable.  According to United Performance Metals, PRODEC plate has become one solution for tangible cost reduction that is maintainable in the long run.  Produced exclusively by New Castle Stainless, PRODEC plate, which stands for production economy, is a premium quality of stainless steel designed for enhanced machinability and processed to provide uniform consistency of properties from plate to plate and heat to heat.

Meeting all the requirements of ASTM and ASME specifications, New Castle Stainless product literature states that PRODEC grades maintain the same yield strength, tensile strength, elongation, hardness, and toughness as conventionally produced plate, while also providing corrosion resistance as good or better than conventional stainless steel.  Advanced ladle metallurgy allows for fine adjustments of the composition, amount, size, shape and distribution of the nonmetallic inclusions normally occurring within standard stainless steel.  The company also states that the enhanced chemistry and treatment methods enable PRODEC Plate to maintain tighter dimensional tolerances and produces a superior surface finish. 

United Performance Metals suggests that compared with conventionally produced stainless steel, PRODEC machinable stainless steel offers significant benefits to manufacturers beginning with faster machining, allowing higher speeds and feeds of at least 25% with carbide tooling.   

One San Francisco Bay supplier has been touting the benefits of PRODEC for over a decade.  United Performance Metals is the largest PRODEC plate distributor on the West Coast. 

“We have found tremendous success with this product.  It’s absolutely sought-after in our market,” remarked Josh Gondkoff, Branch Manager of United Performance Metals in Benicia, CA.  “We do quite a lot of business in the semiconductor market, mostly in Northern California, but we’re able to ship across the country with competitive prices typically in three business days.”

United Performance Metals’ Benicia facility carries PRODEC® Type 304/304L and PRODEC® Type 316/316L plate in thickness of 3/16” up to 4” and specializes in saw cut plate, using carbide tipped blades under flood coolant to produce a better edge. 

PRODEC® Type 304/304L is a versatile, general purpose stainless steel with good resistance to atmospheric corrosion, to many organic and inorganic chemicals, and to foods and beverages. It has also been used in vacuum processing equipment and specialized instruments where high integrity is essential.  PRODEC® Type 316/316L provides improved resistance to pitting and crevice corrosion in environments containing chlorides and other halides. 

PRODEC plate is designed to cut more economically and with significantly better straightness and final surface quality. Both the edge quality produced and shape tolerance of PRODEC plate parts that are precision sawed are above average and maintain standard tolerance of +.060-.000 or better.  The outcome equals considerably longer tool life, increased productivity, better chip breaking, better dimensional tolerances, superior machined surface quality, reduced scrap losses, and consistent performance which translates to a reliable production schedule.  Find out more by contacting us at 888.282.3292 today!

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PRODEC®  is a registered trademark of New Castle Stainless Plate LLC. For more information on PRODEC plate, visit New Castle Stainless Plate LLC.

To learn more about the machinable advantages of PRODEC plate, read our white paper on the topic.

*The technical data provided is for information only and not for design purposes. It is not warranted or guaranteed.