Stainless Steel 316L Flange
JN ALLOY supplies 316L SO flanges, 316L WN flanges, UNS S31603 blind flanges, 1.4404 / 1.4435 316L plain flanges, ASTM A182 UNS S31603 SW flanges, 316L spectacle blind flanges, 316L threaded flanges, 1.4404 / 1.4435 spacer ring,UNS S31603 paddle blind/blank, 316L bleed/test/drip ring, 316L reducing flange.
Stainless steel 316L flange is a pipe connector made of low-carbon 316L austenitic stainless steel. Its core components are 16-18% chromium, 10-14% nickel and 2-3% molybdenum, and a trace amount of carbon (≤0.03%) is added, which has excellent corrosion resistance and processing performance. Compared with ordinary 316 stainless steel, ss 316L's low carbon characteristics significantly reduce the risk of intergranular corrosion in welding or high temperature environments. At the same time, the molybdenum element enhances resistance to chlorides and acidic media, especially suitable for harsh working conditions such as seawater and chemical fluids. The flange is manufactured in strict accordance with ASME, EN or GB standards, covering a variety of structural types such as welding necks, slop on, threads, etc. The surface of S31603 flange is pickled and passivated to strengthen the oxide film to ensure long-term sealing stability and structural strength. Jinie Technology (Jiangsu) Co., LTD supply all different types and scales of flanges. Please feel free to contact us for further product information and pricing.
Application of UNS S31603 Stainless Steel Flange
Stainless Steel 316L flange are widely used in petrochemical, oil, gas, paper, marine engineering, pharmaceutical and food processing fields. Typical scenarios include high-temperature and high-pressure pipeline systems, seawater desalination equipment and strong acid medium transmission pipelines. SS 1.4404's advantages lie in its creep resistance at extreme temperatures (-269°C to 800°C), its excellent performance against pitting and stress corrosion cracking, and its good cold forming and welding compatibility.
Types of 316L Stainless Steel Flange
Stainless Steel 316L Flange comes in various types, including weld neck (WN), long weld neck (LWN), slip-on (SO), socket weld (SW), blind, plate, threaded, lap joint, orifice, and spectacle blind flanges. Additionally, there are special products available, such as rings, forgings, discs, and flange sleeves, catering to diverse industrial applications and requirements.
Ss Werkstoff Nr. 1.4404 Flanges Chemical Material Composition
|
Grade |
C |
Mn |
Si |
P |
S |
Cr |
Mo |
Ni |
N |
|
SS 316L |
0.035 max |
2.0 max |
1.0 max |
0.045 max |
0.030 max |
16.00 - 18.00 |
2.00 - 3.00 |
10.00 - 14.00 |
68.89 min |
Mechanical Properties of 316L Stainless Steel Flanges
|
Density |
Melting Point |
Tensile Strength |
Yield Strength (0.2%Offset) |
Elongation |
|
8.0 g/cm3 |
1399 °C (2550 °F) |
Psi – 75000 , MPa – 515 |
Psi – 30000 , MPa – 205 |
35 % |
Stainless steel 316L Flanges Equivalent Grades
|
STANDARD |
WERKSTOFF NR. |
UNS |
JIS |
BS |
GOST |
AFNOR |
EN |
|
316L |
1.4404 / 1.4435 |
S31603 |
SUS316L |
316S11 / 316S13 |
03Ch17N14M3 / 03Ch17N14M2 |
Z3CND17-11-02 / Z3CND18-14-03 |
X2CrNiMo17-12-2 / X2CrNiMo18-14-3 |
Testing of Stainless Steel 316L Flange
Positive Material Identification - PMI Testing
Chemical Analysis - Spectro Analysis
Mechanical Testing Such as Tensile, Elongation, Reduction of Area
Micro Test
Macro Test
Hardness Test
Pitting Resistance Test
Intergranular Corrosion (IGC) Test
Flaring Test
Flattening Test
Hydrostatic Test
Hydrogen-Induced Cracking (HIC) Test, NACE TM0284
Sulfide Stress Corrosion Cracking (SSC), NACE TM 0177
Radiography Test
Dye Penetrant Test (DP Test)
Dimensions Schedule of ASTM A182 F316L Weld neck flange class 150 (ASME B16.5)
|
Pipe |
Flange Data |
Hub Data |
Raised Face |
Drilling Data |
Weight |
||||||
|
Nominal Pipe Size in |
A |
B |
C |
D |
E |
F |
G |
H |
I |
J |
|
|
Outside Diameter |
Inside Diameter |
Flange Min Thickness |
Overall Length |
Diameter at Weld |
Hub Diameter |
Face Diameter |
Number Of Holes |
Bolt Hole Diameter |
Diameter of Circle |
kg/ piece |
|
|
in mm |
in mm |
in mm |
in mm |
in mm |
in mm |
in mm |
in mm |
in mm |
|||
|
1/2 |
3.500 88.90 |
0.620 15.70 |
0.440 11.20 |
1.880 47.80 |
0.840 21.30 |
1.190 30.20 |
1.380 35.00 |
4 |
0.620 15.70 |
2.380 60.45 |
0.48 |
|
3/4 |
3.880 98.60 |
0.820 20.80 |
0.500 12.70 |
2.060 52.30 |
1.050 26.70 |
1.500 38.10 |
1.690 42.90 |
4 |
0.620 15.70 |
2.750 69.85 |
0.71 |
|
1 |
4.250 108.0 |
1.050 26.70 |
0.560 14.20 |
2.190 55.60 |
1.320 33.50 |
1.940 49.30 |
2.000 50.80 |
4 |
0.620 15.70 |
3.120 79.25 |
1.01 |
|
11/4 |
4.620 117.3 |
1.380 35.10 |
0.620 15.70 |
2.250 57.15 |
1.660 42.20 |
2.310 58.70 |
2.500 63.50 |
4 |
0.620 15.70 |
3.500 88.90 |
1.33 |
|
11/2 |
5.000 127.0 |
1.610 40.90 |
0.690 17.50 |
2.440 62.00 |
1.900 48.30 |
2.560 65.00 |
2.880 73.15 |
4 |
0.620 15.70 |
3.880 98.60 |
1.72 |
|
2 |
6.000 152.4 |
2.070 52.60 |
0.750 19.10 |
2.500 63.50 |
2.380 60.45 |
3.060 77.70 |
3.620 91.90 |
4 |
0.750 19.10 |
4.750 120.7 |
2.58 |
|
21/2 |
7.000 177.8 |
2.470 62.70 |
0.880 22.40 |
2.750 69.85 |
2.880 73.15 |
3.560 90.40 |
4.120 104.6 |
4 |
0.750 19.10 |
5.500 139.7 |
4.11 |
|
3 |
7.500 190.5 |
3.070 78.00 |
0.940 23.90 |
2.750 69.85 |
3.500 88.90 |
4.250 108.0 |
5.000 127.0 |
4 |
0.750 19.10 |
6.000 152.4 |
4.92 |
|
31/2 |
8.500 215.9 |
3.550 90.20 |
0.940 23.90 |
2.810 71.40 |
4.000 101.6 |
4.810 122.2 |
5.500 139.7 |
8 |
0.750 19.10 |
7.000 177.8 |
6.08 |
|
4 |
9.000 228.6 |
4.030 102.4 |
0.940 23.90 |
3.000 76.20 |
4.500 114.3 |
5.310 134.9 |
6.190 157.2 |
8 |
0.750 19.10 |
7.500 190.5 |
6.84 |
|
5 |
10.00 254.0 |
5.050 128.3 |
0.940 23.90 |
3.500 88.90 |
5.560 141.2 |
6.440 163.6 |
7.310 185.7 |
8 |
0.880 22.40 |
8.500 215.9 |
8.56 |
|
6 |
11.00 279.4 |
6.070 154.2 |
1.000 25.40 |
3.500 88.90 |
6.630 168.4 |
7.560 192.0 |
8.500 215.9 |
8 |
0.880 22.40 |
9.500 241.3 |
10.6 |
|
8 |
13.50 342.9 |
7.980 202.7 |
1.120 28.40 |
4.000 101.6 |
8.630 219.2 |
9.690 246.1 |
10.62 269.7 |
8 |
0.880 22.40 |
11.75 298.5 |
17.6 |
|
10 |
16.00 406.4 |
10.02 254.5 |
1.190 30.20 |
4.000 101.6 |
10.75 273.0 |
12.00 304.8 |
12.75 323.8 |
12 |
1.000 25.40 |
14.25 362.0 |
24.0 |
|
12 |
19.00 482.6 |
12.00 304.8 |
1.250 31.75 |
4.500 114.3 |
12.75 323.8 |
14.38 365.3 |
15.00 381.0 |
12 |
1.000 25.40 |
17.00 431.8 |
36.5 |
|
14 |
21.00 533.4 |
To be specified by Purchas er |
1.380 35.10 |
5.000 127.0 |
14.00 355.6 |
15.75 400.1 |
16.25 412.7 |
12 |
1.120 28.40 |
18.75 476.3 |
48.4 |
|
16 |
23.50 596.9 |
1.440 36.60 |
5.000 127.0 |
16.00 406.4 |
18.00 475.2 |
18.50 469.9 |
16 |
1.120 28.40 |
21.25 539.8 |
60.6 |
|
|
18 |
25.00 635.0 |
1.560 39.60 |
5.500 139.7 |
18.00 457.2 |
19.88 505.0 |
21.00 533.4 |
16 |
1.250 31.75 |
22.75 577.9 |
68.3 |
|
|
20 |
27.50 698.5 |
1.690 42.90 |
5.690 144.5 |
20.00 508.0 |
22.00 558.8 |
23.00 584.2 |
20 |
1.250 31.75 |
25.00 635.0 |
84.5 |
|
|
24 |
32.00 812.8 |
1.880 47.80 |
6.000 152.4 |
24.00 609.6 |
26.12 663.4 |
27.25 692.1 |
20 |
1.380 35.10 |
29.50 749.3 |
115 |
|
Pressure Rating Chart of ANSI SS 316L Flanges
|
Temperature |
Working Pressures by Classes, psig |
|||||||
|
°F |
°C |
150 lb |
300 lb |
400 lb |
600 lb |
900 lb |
1500 lb |
2500 lb |
|
-20 to 100 |
-29 to 37.8 |
230 |
600 |
800 |
1200 |
1800 |
3000 |
5000 |
|
300 |
149 |
175 |
455 |
605 |
910 |
1360 |
2270 |
3780 |
|
500 |
260 |
145 |
380 |
510 |
765 |
1145 |
1910 |
3180 |
|
700 |
371 |
110 |
345 |
460 |
685 |
1030 |
1715 |
2860 |
|
850 |
454 |
65 |
320 |
430 |
645 |
965 |
1610 |
2680 |