Alloy 316L

 

ALLOY TYPE Alloy
ALLOY NAME Alloy 316L

Stock Sizes
   
 
Basic Properties - Mechanical Properties
0.2% Proof Stress (N/mm2 )[ksi] minimum 300 [43.5]
Ultimate Tensile Strength (N/mm2) [ksi] minimum 650 [94.2]
Elongation (%) minimum 35
Reduction of Area (%) minimum 50
Hardness (HBN) 270max




Alloy Features Back to Top
   
Low carbon version of 316
   
Immune from grain boundary sensitisation
   
Higher resistance to pitting corrosion and crevice corrosion in seawater than 304 stainless steel
   
Excellent ductility and impact strength at both ambient and sub-zero temperatures
   
Non-magnetic
   
Excellent forming and welding characteristics



Chemical Specification Back to Top
Elements C Cr Fe Mo Mn N Ni P S Si
Minimum   16.5 REMAINDER 2.0     10.0      
Maximum 0.035 18.5   2.5 2.0 0.11 13.0 0.045 0.030 1.0



Physical Properties Back to Top
Density (Kg.m-3) 8000
Magnetic Permeability <1.05
Young’s Modulus (N/mm2) 193x 103
Specific Heat 20°C (J.Kg-1.°K-1) 500
Electrical resistance, 20°C (µ.Ω.m) 0.74
Thermal conductivity, 20°C (W.m-1.°K-1) 16.3
Mean coefficient of thermal expansion, 20-100°C  (°K-1) 15.9 x 10-6

Specifications Back to Top
   
Alloy 316L to MLA-MPS-316L-BAR
   
ASTM A479 Bar UNS S31603
   
ASTM A276 Bar UNS S31603
   

ASTM A240 Plate S31603
   

DIN 1.4404

 

Applications Back to Top
 

Chemical Process Industry:
Organic and Fatty Acids, Chemical containers, Chemical transport, Heat Exchangers
 
Marine Industry and Shipbuilding:
Piping, Pumps, Valves, Fittings, Marine architechture

Oil and Gas Industry:
Piping, Valves, Pumps, Heat Exchangers
 
Mining Industry:
Woven screens

Food Industry


 

Machining Advice Back to Top
Operation Cutting Speed m/min (ft/min) Feed Rate
mm/rev (in/rev)		 Depth of cut mm (in)
Milling

18(58)

0.13-0.25 mm/tooth 0.005-0.010in/tooth

0.2-3.0 (0.007-0.12)
Drilling 6.4mm(1/4") dia 250rpm 0.075(0.003)  
Drilling 12.7mm(1/2") dia 250 rpm 0.125(0.005)  
Drilling 25.4mm(1") dia 150 rpm 0.28(0.011)  
Turning - Roughing

30-45(100-150)

0.40 – 0.50

(0.015-0.020))		 2.5 (0.1)
Turning - Finishing

50-60(165-200)

 0.13-0.20 (0.005-0.008) 0.5 (0.02)
Tooling

Milling/Turning: Carbide (SANDVIK GC 235, SECO T25M)

Drilling: HSS, point angle 118°, chisel angle 120°
KEY Features  of the Alloy

Higher resistance to pitting corrosion and crevice corrosion in seawater than 304 stainless steel

Excellent ductility and impact  strength at both ambient and sub-zero  temperatures

Low magnetic permeability

 

 

Alloy Comparisons S31603 S32205 N05500 S20910 FERRALIUM 255-SD50
(0.2% Proof Strength, N/mm2) 180 510 690 420 610

Corrosion Rate (mm.y-1)Seawater

 <0.1 <0.01 <0.18 <0.01 <0.01

Corrosion Rate (mm.y-1)10% sulphuric acid at 80°C

 >1 0.4 0.1 0.7 <0.15

Corrosion Rate (mm.y-1) Boiling 50% nitric acid

<0.15 <0.15 0.15 0.18 <0.15
Wear Properties related to Hardness (HRC) RC20 RC25 RC34 RC27 RC27



 Back to Top
 
Disclaimer
Data in this publication is provided solely for the purposes of distribution of information. Langley Alloys cannot make guarantees with respect to subject matter or accuracy of this information. Langley Alloys specifically disclaims all guarantees, expressed, implied or otherwise, including without limitation, all warranties of merchantability and fitness for a particular purpose. This publication may include technical inaccuracies or typographical errors. If errors are found, please make a notification via e-mail to: info@langleyalloys.com


   
© Langley Alloys Ltd.
Disclaimer