Stainless Steel Pipe Fittings

OVERVIEW

Stainless Steel Pipe Fittings

TUBA offer Stainless Steel Buttweld Pipe Fittings according to ASME, EN, ISO and DIN standards. We specialise in manufacturing large size and fabricated Stainless Steel Buttweld Fittings upto 48”. We design and fabricate industrial butt weld fittings in varied designs and specifications for our clients benefit. Manufactured using superior quality raw material and sophisticated machines, our range of industrial butt weld fittings is known for superior quality, high performance and zero defects.

Our Pipe Fittings has phenominal Features Such as High Tensile Strength, Sturdy construction, Fine polish, Durable, Resistance against corrosion, Accurate dimensions, Easy maintenance etc. Our Buttweld Pipe Fittings are used in agricultural, pharmaceutical, electrical, marine, chemical and oil and gas industries amongst many others.

There are different makes in all the materials such as forged, socket weld and buttweld fittings. Our SS buttweld fittings are useful in that they fit precisely and allow welding due to the buttweld structure of the fittings. Along with this, our quality experts also test these Steel Fittings on various quality parameters before the final delivery. Customers can also avail these steel fittings in metric and imperial style.

Our range of stainless steel butt weld pipe fittings are offered in varied shapes such as

  • Elbow
  • Tee
  • Reducer
  • Return bends
  • Stub-ends
  • Cap collar
  • Cross
  • Insert

SS Pipe Fittings Specification

Pipe Fittings Specifications ASTM A403/ ASME SA403
SS Pipe Fittings size Seamless Butt Weld Fittings : 1/2" - 10"
Welded Butt Weld Fittings : 1/2" - 48"
SS Pipe Fittings Dimensions ASME/ANSI B16.9, ASME B16.28, MSS-SP-43, BS4504, BS4504, BS1560, BS10
Stainless Steel Buttweld Fittings Thickness SCH10, SCH20, SCH30, STD SCH40, SCH60, XS, SCH 80, SCH 100, SCH 120, SCH 140, SCH 160, XXS available with NACE MR 01-75
Buttweld Pipe FittingsType DN15-DN1200
ASTM A403 SS Buttweld Fitting Connection Welding
Bending Radius R=1D, 2D, 3D, 5D, 6D, 8D, 10D or Custom ASTM A403 Grade WP Pipe Fitting
Size Range ½" NB to 24" NB in Sch 10s, 40s, 80s, 160s, XXS. (DN6~DN100) ASTM A403 WP Buttweld Fitting
ASTM A403 SS Buttweld Fittings Manufacturing process Push, Press, Forge, Cast, etc.
Stainless Steel Buttweld Pipe Fittings Test Certificates EN 10204/3.1B
Raw Materials Certificate
100% Radiography Test Report
Third Party Inspection Report, etc
SA 403 SS Pipe Fittings Origin & Mills Japanese, Indian, USA, Korean, European, Ukraine, Russian
Specialized manufacturer of 90º Elbows, 45º Elbows, Tees, Cross, Reducer, Pipe Cap, Stub End, Pipe Bend
We provide Material Test Certificates (MTC) as per EN 10204 3.1 and EN 10204 3.2, Test Certificates certifying NACE MR0103, NACE MR0175

Projects in the field

90 Deg elbow

45 Deg elbow

180 Deg elbow

Tees

Cross

Reducer

Pipe Cap

Stub End

Pipe Bend

Stainless Steel Buttweld Pipe Fittings Chemical Composition

SS 304 304N 304LN
Ni
8 – 11
8 – 11
8 – 11
Fe
Balance
Cr
18 – 20
18 – 20
18 – 20
C
0.08 max
0.08 max
0.035 max
Si
0.75 max
0.75 max
0.75 max
Mn
2 max
2 max
2 max
P
0.040 max
0.040 max
0.040 max
S
0.030 max
0.030 max
0.030 max
N
0.10 – 0.16
0.10 – 0.16

ASTM A403 Stainless Steel Seamless Fittings Mechanical Properties

Density 8.0 g/cm3
Melting Point 1400 °C (2550 °F)
Tensile Strength Psi – 75000 , MPa – 515
Yield Strength (0.2%Offset) Psi – 30000 , MPa – 205
Elongation 35 %

ASME B16 9 Stainless Steel Fittings Size Chart

Nominal
Pipe
Size		 Outside
Diameter		 90° Elbows 45° Elbows 180° Returns
(inches) Long Radius Short Radius Long Radius Long Radius
(mm) (inches) Center to Face
(inches)		 Center to Face
(inches)		 Center to Face
(inches)		 Radius
(inches)		 Center to Center
(inches)		 Back to face
(inches)
1/2 21.3 0.840 1 1/2 – 5/8 2 1 7/8
3/4 26.7 1.050 1 1/8 – 7/16 2 1/4 1 11/16
1 33.4 1.315 1 1/2 1 7/8 3 2 3/16
1 1/4 42.2 1.660 1 7/8 1 1/4 1 3 3/4 2 3/4
1 1/2 48.3 1.900 2 1/4 1 1/2 1 1/8 3 4 1/2 3 1/4
2 60.3 2.375 3 2 1 3/8 4 6 4 3/16
2 1/2 73.0 2.875 3 3/4 2 1/2 1 3/4 5 7 1/2 5 3/16
3 88.9 3.500 4 1/2 3 2 6 9 6 1/4
3 1/2 101.6 4.000 5 1/4 3 1/2 2 1/4 7 10 1/2 7 1/4
4 114.3 4.500 6 4 2 1/2 8 12 8 1/4
5 141.3 5.563 7 1/2 5 3 1/8 10 15 10 5/16
6 168.3 6.625 9 6 3 3/4 12 18 12 5/16
8 219.1 8.625 12 8 5 12 24 16 5/16
10 273.1 10.750 15 10 6 1/4 15 30 20 3/8
12 323.9 12.750 18 12 7 1/2 18 36 24 3/8

Stainless Steel Pipe Fittings Pressure Rating (psig)

Stainless Steel Pipe Fittings Pressure Rating (psig)
NPS
(inch)
OD
(inch)
Pipe Schedule
Wall
Thick.
(in)
Temperature
200 Fitting
100 Fitting
400 Fitting
300 Fitting
500 Fitting
Allowable Stress (Pressure Rating)
16700
16700
15500
16700
14400
1 1/2" 1.0900 40 0.0145 1629 1629 1512 1629 1404
1.0900 80 0.0200 2303 2303 2138 2303 1986
1.0900 160 0.0281 3362 3362 3120 3362 2899
2" 2.0375 40 0.0154 1371 1371 1272 1371 1182
2.0375 80 0.0218 1985 1985 1843 1985 1712
2.0375 160 0.0344 3283 3283 3047 3283 2831
3" 3.0500 40 0.0216 1301 1301 1208 1301 1122
3.0500 80 0.0300 1844 1844 1712 1844 1590
3.0500 160 0.0438 2787 2787 2587 2787 2403
4" 4.0500 40 0.0237 1102 1102 1023 1102 950
4.0500 80 0.0337 1596 1596 1482 1596 1377
4.0500 160 0.0531 2611 2611 2424 2611 2552
5" 5.0563 40 0.0258 965 965 896 965 832
5.0563 80 0.0375 1428 1428 1325 1428 1231
5.0563 160 0.0625 2474 2474 2296 2474 2133
6" 6.0625 40 0.0280 877 877 814 877 756
6.0625 80 0.0432 1379 1379 1280 1379 1189
6.0625 160 0.0719 2382 2382 2211 2382 2054
8" 8.0625 40 0.0322 771 771 716 771 665
8.0625 80 0.0500 1218 1218 1131 1218 1050
8.0625 160 0.0906 2298 2298 2133 2298 1982
10" 10.0750 40 0.0365 699 699 649 699 603
10.0750 80 0.0594 1159 1159 1075 1159 999
10.0750 160 1.0125 2289 2289 2124 2289 1974

Dimensions Schedule Of Stainless Steel Weld Fittings

NOMINAL PIPE SIZE ALL FITTINGS ALL FITTINGS 180 DEG RETURN BENDS REDUCERS ELBOWS AND TEES 180 DEG RETURN BENDS CAPS
NPS ID at End
(1), (3), (4)		 OD at Bevel (1), (2) Centre-to- Centre O Overall Length H Centre -to- End Dimension A, B, C, M Alignment of Ends U Overall Length E
½ to 2½ 0.003 0.006
-0.003		 0.025 0.006 0.006 0.003 0.012
3 to 3 ½ 0.006 0.006 0.025 0.006 0.006 0.003 0.012
4 0.006 0.006 0.025 0.006 0.006 0.003 0.012
5 to 8 0.006 0.009
-0.006		 0.025 0.006 0.006 0.003 0.025
10 to 18 0.012 0.016
-0.012		 0.038 0.009 0.009 0.006 0.025
20 to 24 0.019 0.025
-0.019		 0.038 0.009 0.009 0.006 0.025
26 to 30 0.019 0.025
-0.019		 … 0.019 0.012 … 0.038
32 to 48 0.019 0.025
-0.019		 … 0.019 0.019 …

ASME B16.9 SS 304 Forged Fittings Dimensions Chart

Nominal
Pipe
Size		 45° Elbow 90° Elbow OD 180° Returns
(inch.) LR SR LR LR
Radius
(inch.)		 Center to Face
(inch.)		 Center to Face
(inch.0)		 Center to Face
(inch.0)		 (inch) (millimeter) Back to face
(inch.)		 Center to Center
(inch.)
1/2 5/8 – 1 1/2 0.0840 21.03 1 7/8 2
10 15 6 1/4 10 15 10.0750 273.01 20 3/8 30
3/4 7/16 – 1 1/8 1.0050 26.07 1 11/16 2 1/4
1 7/8 1 1 1/2 1.0315 33.04 2 3/16 3
1 1/4 1 1 1/4 1 7/8 1.0660 42.02 2 3/4 3 3/4
8 12 5 8 12 8.0625 219.01 16 5/16 24
1 1/2 3 1 1/8 1 1/2 2 1/4 1.0900 48.03 3 1/4 4 1/2
2 4 1 3/8 2 3 2.0375 60.03 4 3/16 6
2 1/2 5 1 3/4 2 1/2 3 3/4 2.0875 73.00 5 3/16 7 1/2
3 6 2 3 4 1/2 3.0500 88.09 6 1/4 9
6 12 3 3/4 6 9 6.0625 168.03 12 5/16 18
3 1/2 7 2 1/4 3 1/2 5 1/4 4.0000 101.06 7 1/4 10 1/2
4 8 2 1/2 4 6 4.0500 114.03 8 1/4 12
5 10 3 1/8 5 7 1/2 5.0563 141.03 10 5/16 15
12 18 7 1/2 12 18 12.0750 323.09 24 3/8 36

Dimensions SS Pipe Elbow

NPS Outside diameter
D		 45°
Long Rad
Center to End
B		 90°
Long Rad
Center to End
A		 45°
3D
Center to End
B		 90°
3D
Center to End
A
1/2 21.03 16 38
3/4 26.07 19 38 24 57
1 33.04 22 38 31 76
1¼ 42.02 25 48 39 95
1½ 48.03 29 57 47 114
2 60.03 35 76 63 152
2½ 73 44 95 79 190
3 88.09 51 114 95 229
3½ 101.06 57 133 111 267
4 114.03 64 152 127 305
5 141.03 79 190 157 381
6 168.03 95 229 189 457
8 219.01 127 305 252 610
10 273 159 381 316 762
12 323.08 190 457 378 914
14 355.06 222 533 441 1067
16 406.04 254 610 505 1219
NPS O.D.
D		 45°
Long Rad
Center to End
B		 90°
Long Rad
Center to End
A		 45°
3D
Center to End
B		 90°
3D
Center to End
A
18 457 286 686 568 1372
20 508 318 762 632 1524
22 559 343 838 694 1676
24 610 381 914 757 1829
26 660 406 991 821 1981
28 711 438 1067 883 2134
30 762 470 1143 946 2286
32 813 502 1219 ASME SA403 316 SS 2438
34 864 533 1295 1073 2591
36 914 565 1372 1135 2743
38 965 600 1448 1200 2896
40 1016 632 1524 1264 3048
42 1067 660 1600 1326 3200
44 1118 695 1676 1389 3353
46 1168 727 1753 1453 3505
48 1219 759 1829 1516 3658

ASTM A403 Stainless Steel Pipe Reducer Dimensions

NOMINAL PIPE SIZE OUTSIDE DIAMETER END TO END
Inch P D H
3/4 x 1/2 21.03 26.07 38
3/4 x 3/8 17.01 26.07 38
1 x 3/4 26.07 33.04 51
1 x 1/2 21.03 33.04 51
1 1/4 x 1 33.04 42.02 51
1 1/4 x 3/4 26.07 42.02 51
1 1/4 x 1/2 21.03 42.02 51
1 1/2 x 1 1/2 42.02 48.03 64
1 1/2 x 1 33.04 48.03 64
1 1/2 x 3/4 26.07 48.03 64
1 1/2 x 1/2 21.03 48.03 64
2 x 1 1/2 48.02 60.03 76
2 x 1 1/4 42.02 60.03 76
2 x 1 33.04 60.03 76
2 x 3/4 26.07 60.03 76
2 1/2 x 2 60.03 73 89
2 1/2 x 1 1/2 48.03 73 89
2 1/2 x 1 1/4 42.02 73 89
2 1/2 x 1 33.04 73 89
3 x 2 1/2 73 88.09 89
3 x 2 60.03 88.09 89
3 x 1 1/2 48.03 88.09 89
3 x 1 1/4 42.02 88.09 89
3 1/2 x 3 88.09 101.06 102
3 1/2 x 21/2 73 101.06 102
3 1/2 x 2 60.03 101.06 102
3 1/2 x 1 1/2 48.03 101.06 102
3 1/2 x 1 1/4 42.02 101.06 102
4 x 3 1/2 101.06 114.03 102
4 x 3 88.09 114.03 102
4 x 2 1/2 73 114.03 102
4 x 2 60.03 114.03 102
4 x 1 1/2 48.03 114.03 102
5 x 4 114.03 141.03 127
5 x 3 1/2 101.06 141.03 127
5 x 3 88.09 141.03 127
5 x 2 1/2 73 141.03 127
5 x 2 60.03 141.03 127
6 x 5 141.03 168.03 140
6 x 4 114.03 168.03 140
6 x 3 1/2 101.06 168.03 140
6 x 3 88.09 168.03 140
6 x 2 1/2 73 168.03 140
8 x 6 168.03 219.01 152
8 x 5 141.03 219.01 152
8 x 4 114.03 219.01 152
8 x 3 1/2 101.06 219.01 152
10 x 8 219.01 273.01 178
10 x 6 168.01 273.01 178
10 x 5 141.03 273.01 178
10 x 4 114.03 273.01 178
12 x 10 273.01 323.09 203
12 x 8 219.01 323.09 203
12 x 6 168.03 323.09 203
12 x 5 141.03 323.09 203
14 x 12 323.09 355.06 330
14 x 10 273.01 355.06 330
14 x 8 219.01 355.06 330
14 x 6 168.03 355.06 330
16 x 14 355.06 406.04 356
16 x 12 323.09 406.04 356
16 x 10 273.01 406.04 356
16 x 8 219.01 406.04 356
16 x 6 168.03 406.04 356
18 x 16 406.04 457 381
18 x 14 355.06 457 381
18 x 12 323.09 457 381
18 x 10 273.01 457 381
18 x 8 219.01 457 381
20 x 18 457 508 508
20 x 16 406.04 508 508
20 x 14 355.06 508 508
20 x 12 323.09 508 508
20 x 10 273.01 508 508
20 x 8 219.01 508 508
22 x 20 508 559 508
22 x 18 457 559 508
22 x 16 406.04 559 508
22 x 14 355.06 559 508
22 x 12 323.09 559 508
24 x 10 273.01 559 508
24 x 22 559 610 508
24 x 20 508 610 508
24 x 18 457 610 508
24 x 16 406.04 610 508
24 x 14 355.06 610 508
24 x 12 323.09 610 508
24 x 10 273.01 610 508

ASME B16 9 Stainless Steel Fittings Manufacturing Standards

ASTM A 403 Stainless Steel Fittings Grade SS Pipe Fittings Specification
Stainless 304/304L, 304/304H A/SA403, A/SA182
Stainless 316/316L, 316/316H A/SA403, A/SA182
Stainless 317/317L A/SA403, A/SA182
Stainless 321/321H A/SA403, A/SA182
Stainless 347/347H A/SA403, A/SA182

Stainless Steel Welded Pipe Fitting Production Range

Bending Radius R=1D, 2D, 3D, 5D, 6D, 8D, 10D or Custom
Range ½”NB to 48″NB in Sch 10s, 40s, 80s, 160s, XXS.
Dimensions ANSI/ASME B16.9, B16.28, MSS-SP-43. 
Specification ASTM A182 / A403 & ASME SA182 / SA403
Grades 201, 202, 304, 304L, 304H, 309S, 309H, 310S, 310H, 316, 316TI, 316H, 316L, 316LN, 317, 317L, 321, 321H, 347, 347H, 904L
stainless steel elbow manufacturers of Type Seamless / Welded / Fabricated
Stainless Steel Pipe Fittings Manufacturers in India

ANSI B16.9 Stainless Steel Buttweld Fittings Forms & Availability

Seamless/ Welded 100% Radiography Tested

Products Size
ASTM A403 SS Elbow – Long Radius ASTM A403 SS Stub Ends Sizes 1/2″ – 48″
ASTM A403 SS Elbow – Short Radius ASTM A403 Stainless Steel Cross
ASTM A403 Stainless 3D Elbow ASTM A403 SS 5D Elbow
ASTM A403 SS Reducing Elbow ASTM A403 SS Reducing Cross
ASTM A403 Stainless 45° Elbow ASTM A403 Stainless Tees
ASTM A403 SS Fabricated Tee ASTM A403 Stainless End Cap
ASTM A403 Stainless Reducer ASTM A403 Stainless Coupling
ASTM A403 SS Concentric Reducer ASTM A403 SS Eccentric Reducer
ASTM A403 SS Pipe Nipple ASTM A403 SS Welded Pipe Fittings

High Pressure Forged Stainless Steel Pipe Fittings

Products Size
Stainless Steel 90° Elbows Stainless Steel Couplings Sizes 1/8″ – 4″
Pressure Ratings –
2000 LBS, 3000 LBS, 6000 LBS, 9000 LBS
Stainless Steel 45° Elbows Stainless Steel Reducers
Stainless Steel Street Elbows Stainless Steel Inserts
Stainless Steel Tees Stainless Steel Caps
Stainless Steel Crosses Stainless Steel Unions

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