Stainless steel 316LN Flange

 

JN ALLOY supplies 316LN SO flanges, 316LN WN flanges, UNS S31653 blind flanges,1.4406, 1.4429 316LN plain flanges, ASTM A182 UNS S31653 SW flanges, 316LN spectacle blind flanges, 316LN threaded flanges, 1.4406, 1.4429 spacer ring,UNS S31653 paddle blind/blank, 316LN bleed/test/drip ring, 316LN reducing flange.

 

Stainless steel 316LN flange is a modified material based on austenitic stainless steel 316L, and its performance is further optimized by adding nitrogen (N). SS 1.4429's chemical composition includes about 16-18% chromium (Cr), 10-14% nickel (Ni), 2-3% molybdenum (Mo), and low carbon content (≤0.03% C) and 0.1-0.16% nitrogen (N). The addition of nitrogen significantly improves the strength and corrosion resistance of the material, especially at high temperature or welding state, which can effectively inhibit the precipitation of carbides and avoid the risk of intergranular corrosion.

Stainless steel 316LN Flange, is refined through an electroslag remelting (ESR) process, resulting in enhanced grain homogeneity and fewer non-metallic inclusions compared to 316L. Additionally, the nitrogen content in 316LN is higher than that of 316L, leading to improved material strength while retaining excellent ductility at cryogenic temperatures. By integrating 316LN flanges into your next design, you can benefit from the many advantages this advanced alloy provides.

 

These benefits include:
Low magnetic permeability (μmax= 1.005)
Increased resistance to heat hardening
Increased resistance to irradiation damage
Resistance to sensitization
Resistance to corrosion

 

The combination of these properties makes ss 316LN flanges a superior choice for demanding applications in industries such as pharmaceuticals, food processing, and advanced manufacturing, where both performance and durability are critical. By selecting 316LN flanges, you not only enhance the reliability of your systems but also optimize their operational efficiency. 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.

 

Types of 316LN Stainless Steel Flange

 

Stainless Steel 316LN 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.

 

316LN Stainless Steel Flanges Specification

 

Material: ASTM A182 Standard Specification for Forged or Rolled Alloy Steel Pipe Flanges, Forged Fittings, and Valves and Parts for High Temperature Service

Standard: ASME B16.5, ASME B16.47, DIN, EN, BS, JIS

Size: 1/2"-48", DN6-DN400

Class: 150#,300#,400#,600#,900#,1500#,2500#

 

316LN Stainless Steel Flange Chemical Composition

 

Element

Content (%)

Iron, Fe

Balance

Chromium, Cr

16.0-18.0

Nickel, Ni

10.0-14.0

Molybdenum, Mo

2.0-3.0

Manganese, Mn

2.00

Silicon, Si

1.00

Nitrogen, N

0.10-0.30

Phosphorous, P

0.045

Carbon, C

0.03

Sulfur, S

0.03

 

UNS S31653 Stainless Steel Flange Mechanical Properties

 

Properties

Metric

Imperial

Tensile strength

515 MPa

74694 psi

Yield strength

205 MPa

29732 psi

Modulus of elasticity

190-210 GPa

27557-316LN57 ksi

Poisson's ratio

0.27-0.30

0.27-0.30

Elongation at break (in 50 mm)

60%

60%

 

Stainless steel 316LN Flange Equivalent Grades

 

STANDARD

WERKSTOFF NR.

UNS

JIS

EN

316LN

1.4406, 1.4429

S31653

SUS316LN

X2CrNiMoN17-11-2

 

Dimension of UNS S31653 Stainless Steel 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

Bevel

Hub Diameter

Face Diameter

Number

of Holes

Bolt Hole Diameter

Diameter

of Circle

of Holes

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
Purchaser

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

 

Stainless Steel 1.4429 Flange Material Testing

 

Jinie Technology (Jiangsu) Co., LTD ensures that all our materials go through strict quality tests before dispatching them to our clients.

 

• Mechanical Testing Such as Tensile of Area
• Hardness Test
• Chemical Analysis – Spectro Analysis
• Positive Material Identification – PMI Testing
• Flattening Test
• Micro and MacroTest
• Pitting Resistance Test
• Flaring Test
• Intergranular Corrosion (IGC) Test
 

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