Stainless Steel 321 / 321H Flanges Manufacturer

Katariya Steel is a well-known company that manufactures and exports Stainless Steel 321 Flange and Stainless Steel 321H Flanges to our national and international clients.

Stainless Steel 321 Flange is a stabilized version of Stainless Steel 304. It has18/10 chromium-nickel alloy, which is tempered with titanium to protect SS 321 against intergranular corrosion that might develop following heat treatment. The metal has high strength and resistance to corrosion, especially corrosion from aquatic settings. SS 321 is used in heavy welding components as well as dynamic situations that are prone to change. However, the presence of titanium restricts the working use of SS 321. Because the metal is not consumable, it is not advised for certain welding procedures. In addition, stainless steel 321 has good forming capabilities, does not require annealing after welding, and is strong in a wide temperature range. Even when subjected to cryogenic temperatures, the metal retains its strength. It is also preferred over SS 304 due to its greater resistance to creep and rupture.

UNS S32100 Flanges, Stainless Steel 321 Flanges, 321 Stainless Steel Flanges, ASTM A182 F321H Flanges, SS 321 Raised Face Flange, SS 321 Pipe Flanges, SS 321 Threaded Flange, ANSI B16.5 Stainless Steel 321 Flanges, SS 321 Flange, Stainless Steel 321 Flanges Manufacturer in Mumbai, India.

Stainless steel 321H Flange is a higher-carbon variation of stainless steel 321. Because of its increased carbon levels, it can also sustain higher temperatures than type 321. While 321H has the same welding and forming properties as type 321, it cannot be toughened by heat treatment. It is used in cases when type 321 cannot survive high temperatures, usually above 1000° F. Type 321H is more resistant to creep than SS 321. SS 321H is also resistant to acid corrosion in many conditions. However, at any given temperature, the metal has relatively low resistance to chlorine or sulfuric solutions.

High-temperature chemical process heat exchanger tubes and high-temperature steam services frequently employ these flanges. It also exhibits good general corrosion resistance that is comparable to 304. Katariya Steel Distributors sells these flanges at competitive prices to our clients.

ASME B16.36 321H Orifice Flange, Stainless Steel 1.4878 Flanges, ASME SA182 321H Stainless Steel Flanges, SS 321H Flanges, Stainless Steel 321 Screwed Flanges, Stainless Steel 321H Plate Flange, SS 321H Flanges Stockist, Stainless Steel 321H Flanges, Stainless Steel 321H Flanges Supplier in India.

Specification For SS 321 / 321H Flanges

Specifications ASTM A182 / ASME SA182
Dimensions ANSI/ASME B16.5, B 16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, etc.
Standard ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, etc.
Size 1/2" (15 NB) to 48" (1200NB)
Class / Pressure 150#, 300#, 600#, 900#, 1500#, 2500#, PN6, PN10, PN16, PN25, PN40, PN64 etc.
Flange Face Type Flate Face (FF), Raised Face (RF), Ring Type Joint (RTJ)

Equivalent Grades Of Stainless Steel 321 / 321H Flanges

STANDARD WERKSTOFF NR. UNS JIS EN
SS 321 1.4541 S32100 SUS 321 X6CrNiTi18-10
SS 321H 1.4878 S32109 SUS 321H X12CrNiTi18-9

SS 321 / 321H Flanges Chemical Composition

Grade C Mn Si P S Cr N Ni Ti
SS 321 0.08 max 2.0 max 1.0 max 0.045 max 0.030 max 17.00 – 19.00 0.10 max 9.00 – 12.00 5(C+N) – 0.70 max
SS 321H 0.04 – 0.10 2.0 max 1.0 max 0.045 max 0.030 max 17.00 – 19.00 0.10 max 9.00 – 12.00 4(C+N) – 0.70 max

321 / 321H SS Flanges Mechanical Properties

Grade Density Melting Point Tensile Strength Yield Strength (0.2%Offset) Elongation
SS 321 / 321H 8.0 g/cm3 1457 °C (2650 °F) Psi – 75000 , MPa – 515 Psi – 30000 , MPa – 205 35 %

Ready Stock Of Stainless Steel 321 / 321H Flanges Supplier

  • 321H Stainless Steel 150 LBS Threaded Flanges
  • 321H Stainless Steel Spectacle Blind Flanges
  • 321 Stainless Steel BS Standard Table E
  • SS 1.4878 1500 LBS Screwed Flanges
  • Austenitic Stainless Steel 321 Flanges
  • Stainless Steel 321 Male & Female Flanges
  • ASTM A182 F321H Stainless Steel Flange
  • ASME B16.5 Stainless Steel 321H Flanges
  • 321H SS Spades Ring Spacers Flanges
  • SS Gr 321H Industrial Lap Joint Flanges
  • SS 321H Long Welding Neck Flange
  • SS 321 NPT Thread Flanges
  • UNS S32109 Stainless Steel RTJ Flanges
  • 321 SS Weldo Flanges
  • Stainless Steel 321H Loose Flanges
  • 321H SS British Standard Table D Pipe Flanges
  • Type 321 Stainless Steel Threaded Flange
  • Stainless Steel 321H Flat Face Flanges
  • Grades 321, 321H Stainless Steel Flanges
  • SS 321 Nipo Flanges
  • Stainless Steel 321H BSP Thread Flange
  • 321 Stainless Steel High Hub Blind Flanges

Stainless Steel 321 / 321H Flanges Weight Chart

15mm (1/2″) Stainless Steel 321 Flanges Weight Chart

Pipe Normal Diam.
O.D. Flange 
Thk. Of Flange Min 
Diam.
of
Hub 
Diameter of Raised Face 
Length Hub.Y
Thread Length
Diam. 
of Bolt
Circle
Diam. 
of Bolt
Holes
Number
of Bolts
Diam. of
Bolts
(inch)
KG
LB
inch
dn
O
C
X
G
Y
T
BC
BH
BN
BD
1/2″
15
89.00
11.20
30.20
35.10
15.70
15.70
60.50
15.80
4
1/2″
0.4
0.9
3/4″
20
98.50
12.70
38.10
42.90
15.70
15.70
69.90
15.80
4
1/2″
0.7
1.5
1″
25
108.00
14.20
49.30
50.80
17.50
17.50
79.30
15.80
4
1/2″
0.8
1.8
1-1/4″
32
117.50
15.70
58.70
63.50
20.60
20.60
88.90
15.80
4
1/2″
1.2
2.6
1-1/2″
40
127.00
17.50
65.00
73.20
22.40
22.40
98.60
15.80
4
1/2″
1.5
3.3
2″
50
152.50
19.10
77.70
91.90
25.40
25.40
120.70
19.10
4
5/8″
2.3
5.1
2-1/2″
65
178.00
22.40
90.40
104.60
28.40
28.40
139.70
19.10
4
5/8″
3.7
8.1
3″
80
190.50
23.90
108.00
127.00
30.20
30.20
152.40
19.10
4
5/8″
4.1
9
3-1/2″
90
216.00
23.90
122.20
139.70
31.80
31.80
177.80
19.10
8
5/8″
5.1
11.2
4″
100
228.50
23.90
134.90
157.20
33.30
33.30
190.50
19.10
8
5/8″
5.9
13
5″
125
254.00
23.90
163.60
185.70
36.60
36.60
215.90
22.40
8
3/4″
7
15.4
6″
150
279.50
25.40
192.00
215.90
39.60
39.60
241.30
22.40
8
3/4″
8.4
18.5
8″
200
343.00
28.40
246.10
269.70
44.50
44.50
298.50
22.40
8
3/4″
13
28.6
10″
250
406.50
30.20
304.80
323.90
49.30
49.30
362.00
25.40
12
7/8″
18
39.5
12″
300
482.50
31.80
365.30
381.00
55.60
55.60
431.80
25.40
12
7/8″
29
64
14″
350
533.50
35.10
400.10
412.80
57.20
57.20
476.30
28.50
12
1″
39
86
16″
400
597.00
36.60
457.20
469.90
63.50
63.50
539.80
28.50
16
1″
47
103
18″
450
635.00
39.60
505.00
533.40
68.30
68.30
577.90
31.80
16
1 1/8″
57
126
20″
500
698.50
42.90
558.80
584.20
73.20
73.20
635.00
31.80
20
1 1/8″
76
167
24″
600
813.00
47.80
663.40
692.20
82.60
82.60
749.30
35.10
20
1 1/4″
97
214

Stainless Steel 321 / 321H Pipe Flange Dimensions

AMERICAN SOCIETY OF MECHANICAL ENGINEERS (ASME)
  • ASME B1.20.1, Pipe Threads, General Purpose
  • ASME B16.1, Cast Iron Pipe Flanges Classes 25, 125 and 250
  • ASME B16.5, Flanges NPS 1/2 Through NPS 24
  • ASME B16.11, Forged Fittings, Socket Welding and Threaded
  • ASME B16.25, Buttwelding Ends
  • ASME B16.36, Orifice Flanges
  • ASME B16.47, Large Diameter Steel Flanges NPS 26 Through NPS 60
  • ASME B31.1, Power Piping
  • ASME B31.3, Process Piping
  • ASME B46.1, Surface Texture (Surface Roughness, Waviness, and Lay)

321 / 321H Stainless Steel Flanges Pressure Rating

ANSI/ASME B16.34 PRESSURE RATING CHART
Temperature °F 150# 300# 400# 600# 900# 1500# 2500#
-20 to 100 275 720 960 1440 2160 3600 6000
200 230 600 800 1200 1800 3000 5000
300 205 540 720 1080 1620 2700 4500
400 190 495 660 995 1490 2485 4140
500 170 465 620 930 1395 2330 3880
600 140 435 580 875 1310 2185 3640
650 125 430 575 860 1290 2150 3580
700 110 425 565 850 1275 2125 3540
750 95 415 555 830 1245 2075 3460
800 80 405 540 805 1210 2015 3360
850 65 395 530 790 1190 1980 3300
900 50 390 520 780 1165 1945 3240
950 35 380 510 765 1145 1910 3180
1000 20 320 430 640 965 1605 2675
1050 20 310 410 615 925 1545 2570
1100 20 255 345 515 770 1285 2145
1150 20 200 265 400 595 995 1655
1200 20 155 205 310 465 770 1285
1250 20 115 150 225 340 565 945
1300 20 85 115 170 255 430 715
1350 20 60 80 125 185 310 515
1400 20 50 65 95 145 240 400
1450 15 35 45 70 105 170 285
1500 10 25 35 55 80 135 230

Stainless Steel 321-321H Flanges Applications and Uses

Aerospace Industry

Oil & Gas Industry

Petrochemical Industry

Construction Industry

Mining Industry

Domestic Supply of Stainless Steel 321 / 321H Flanges

  • Thane
  • Pune
  • Indore
  • Chennai
  • Nagpur
  • Ludhiana
  • Ranchi
  • Rajkot
  • Hyderabad
  • Kolkata
  • Jaipur
  • Haryana
  • Secunderabad
  • Surat
  • Howrah
  • Gurgaon
  • New Delhi
  • Noida
  • Faridabad
  • Navi Mumbai
  • Jamshedpur
  • Ahmedabad
  • mumbai
  • Ernakulam
  • Kanpur
  • Bhopal
  • Chandigarh
  • Bengaluru
  • Visakhapatnam
  • Thiruvananthapuram
  • Pimpri-Chinchwad
  • Nashik

International Supply of Stainless Steel 321 / 321H Flanges

  • India India
  • Japan Japan
  • Russia Russia
  • United States United States
  • Saudi Arabia Saudi Arabia
  • Kuwait Kuwait
  • Singapore Singapore
  • Malaysia Malaysia
  • Germany Germany
  • Italy Italy
  • China China
  • UK UK
  • Canada Canada
  • Iran Iran
  • Thailand Thailand
  • South Korea South Korea
  • Turkey Turkey
  • Morocco Morocco
  • Costa Rica Costa Rica
  • Kazakhstan Kazakhstan
  • Philippines Philippines
  • Egypt Egypt
  • Vietnam Vietnam
  • Oman Oman
  • Australia Australia
  • Qatar Qatar
  • Portugal Portugal
  • Mexico Mexico
  • Brazil Brazil
  • France France
  • South Africa South Africa
  • Jordan Jordan
  • Spain Spain
  • Hong Kong Hong Kong
  • Netherlands Netherlands
  • Indonesia Indonesia
  • Taiwan Taiwan
  • Nigeria Nigeria
  • Bangladesh Bangladesh
  • Iraq Iraq
  • Ukraine Ukraine
  • Poland Poland
  • Romania Romania
  • Cyprus Cyprus
  • Angola Angola
  • Colombia Colombia
  • Norway Norway
  • Chile Chile
  • Tobago Tobago
  • Greece Greece
  • Czechia Czechia
  • Belgium Belgium
  • Sri Lanka Sri Lanka
  • Myanmar Myanmar
  • Venezuela Venezuela

We’re Good in All
Steel Works

Expert & Professional
Workers

Very Reasonable
Price