Butt Weld Fittings : ASTM A403 / ASME SA403 – B16.9 – B16.28

STAINLESS STEEL BUTT WELD
DIMENSIONAL TOLERANCES

(1) Out-of-round is the sum of absolute values of plus and minus tolerance. 
(2) The inside diameter at ends and the nominal wall thicknesses are to be specified by the purchaser. 
 IN ACCORDANCE WITH ASME B16.9 – B16.28 
All Fittings
90°and 45° Ells and TeesReducers and Lap Joint StubCaps180° ReturnsAngularity Tol
Nominal Pipe Plane Size (NPS)Outside(1) Diameter at BevelInside(1) Diameter at EndWall(2) ThicknessCentre-to- End Dimension A,B,C,MOverall Length LOverall Length ECentre-to- Centre Dimension OBack-to- Face Dimension KAlignment at Ends UNominal Pipe SIzeOff Angle QOff Angle P
1/2 TO 2-1/2+1/16±1/32Not less than 87-1/2% of Normal Thickness±1/16±1/16±1/8±1/4±1/4±1/3212 to 41/321/16

-1/32






5 to 81/161/8
3 TO 3-1/2±1/16±1/16±1/16±1/16±1/8±1/4±1/4±1/3210 to 123/323/16
4±1/16±1/16±1/16±1/16±1/8±1/4±1/4±1/3214 to 163/321/4
5 TO 8+1/32±1/16±1/16±1/16±1/4±1/4±1/4±1/3218 to 241/83/8

-1/16









10 TO 18+1/16±1/8±3/32±3/32±1/4±3/8±1/4±1/16 All dimensions are in inches 

-1/8






20 TO 24+1/4±3/32±3/32±3/32±1/4±3/8±1/4±1/16

-3/32







WELDING ENDS

Nominal Wall Thickness (1)End Preparation
Less than x*Cut square or slightly chamfer, at mfr.’s option
x* to 7/8 incl.Plain bevel as in sketch “a”
More than 7/8”Compound bevel as in sketch “b”
x* = 3/16” for carbon steel, ferritic alloy steel, or wrought iron; 1/8” for austentic alloy steel
IN ACCORDANCE WITH ANSIB16.9 – B16.28 

STAINLESS STEEL LONG RADIUS

90º ELBOWS
Standard Range — Inches
Approximate Weight — Pounds
Nominal Pipe SizeO.D. Outside DiameterCentre to Face A
Sch.5SSch.10SSch.40SSch.80S
1/20.8401-1/2
0.100.130.170.22
3/41.0501-1/8
0.100.130.170.23
11.3151-1/2
0.180.290.340.45
1-1/41.6601-7/8
0.250.470.580.77
1-1/21.9002-1/4
0.360.640.841.12
22.3753
0.621.091.502.07
2-1/22.8753-3/4
1.211.822.983.95
33.5004-1/2
1.742.684.686.33
3-1/24.0005-1/4
2.333.596.569.04
44.5006
3.014.628.9012.40
55.5637-1/2
6.108.0015.1021.40
66.6259
8.9511.5023.5035.30
88.62512
15.4022.2047.0071.00
1010.75015
29.2038.6083.00110.00
1212.75018
52.0059.50123.00160.00
14*21

88.00154.00207.00
16*24

114.00209.00275.00
18*27

144.00264.00348.00
20*30

187.00321.00427.00
24*36

321.00484.00620.00
*Dimensions same as Nominal Pipe Size

STAINLESS STEEL SHORT RADIUS

90º ELBOWS
Standard Range — Inches
Approximate Weight — Pounds
Nominal Pipe SizeO.D. Outside DiameterCentre to Face A
Sch.5SSch.10SSch.40SSch.80S
11.3151
0.170.230.260.41
1-1/41.6601-1/4
0.310.380.450.64
1-1/21.9001-1/2
0.430.490.630.75
22.3752
0.630.811.131.40
2-1/22.8752-1/2
1.251.362.252.60
33.5003
1.752.173.314.20
3-1/24.0003-1/2
2.353.054.546.00
44.5004
3.123.796.888.20
55.5635
4.946.1211.6314.00
66.6256
7.759.1517.5023.00
88.6258
15.4417.6337.6048.00
1010.75010
27.4035.0063.0075.00
1212.75012
35.0040.0080.00108.00
14*14

66.00116.00145.00
16*16

85.00157.00230.00
18*18

108.00198.00243.00
20*20

140.00242.00299.00
24*24

242.00363.00436.00
*Dimensions same as Nominal Pipe Size

STAINLESS STEEL LONG RADIUS
 45º ELBOWS

Standard Range — InchesApproximate Weight — Pounds
Nominal Pipe SizeO.D. Outside DiameterCentre to Face ASch.5SSch.10SSch.40SSch.80S
1/20.8405/80.050.070.090.11
3/41.0507/160.050.070.090.11
11.3157/80.120.140.170.22
1-1/41.66010.160.230.290.39
1-1/21.9001-1/80.220.320.420.56
22.3751-3/80.340.540.751.04
2-1/22.8751-3/40.680.911.491.98
33.50020.901.342.343.17
3-1/24.0002-1/41.191.793.284.52
44.5002-1/21.512.314.456.20
55.5633-1/83.094.007.5510.70
66.6253-3/44.485.7511.8017.70
88.62557.7011.1023.5035.80
1010.7506-1/414.7019.3041.8056.00
1212.7507-1/226.1029.8061.5081.00
14*8-3/4
44.0077.00103.00
16*10
57.00105.00138.00
18*11-1/4
72.00132.00174.00
20*12-1/2
94.00161.00213.00
24*15
161.00242.00310.00
*Dimensions same as Nominal Pipe Size

STAINLESS STEEL LONG RADIUS

180º RETURNS
Standard Range — InchesApproximate Weight — Pounds
Nominal Pipe SizeO.D. Outside DiameterCentre to Centre OBack to Face KSch.5SSch.10SSch.40SSch.80S
1/20.84031-7/80.200.260.340.44
3/41.0502-1/41-11/160.200.260.340.46
11.31532-3/160.360.590.680.90
1-1/41.6603-3/42-3/40.500.941.161.54
1-1/21.9004-1/23-1/40.721.281.682.24
22.37564-3/161.242.183.004.14
2-1/22.8757-1/25-1/82.423.645.967.90
33.50096-1/43.485.369.3612.66
3-1/24.00010-1/27-1/44.667.1813.1228.08
44.500128-1/46.029.2417.8024.80
55.5631510-5/1612.2016.0030.2042.80
66.6251812-5/1617.9023.0047.0070.60
88.6252416-5/1630.8044.4094.00142.00
1010.7503020-3/858.4077.20166.00220.00
1212.7503624-3/8104.00119.00246.00320.00
14*4228-178.00308.00413.00
16*4832-227.00418.00550.00
18*5436-288.00528.00696.00
20*6040-374.00642.00854.00
24*7248-642.00968.001240.00
*Dimensions same as Nominal Pipe Size

STAINLESS STEEL SHORT RADIUS
180º RETURNS

Standard Range — InchesApproximate Weight — Pounds
Nominal Pipe SizeO.D. Outside DiameterCentre to Centre OBack to Face KSch.5SSch.10SSch.40SSch.80S
11.31521-5/80.320.360.46-
1-1/41.6602-1/22-1/160.440.600.78-
1-1/21.90032-7/160.600.841.121.50
22.37542-3/160.921.402.002.80
2-1/22.87553-15/161.862.403.965.20
33.50064-3/42.44.3.406.248.40
3-1/24.00075-1/23.244.608.7612.40
44.50086-1/44.206.0011.9016.40
55.563107-3/48.4010.4020.2028.00
66.625129-5/1612.6016.4031.2046.00
88.6251612-5/1621.0028.4063.0096.00
1010.7502015-3/840.0050.00111.00150.00
1212.7502418-3/868.0078.00164.00216.00
14*2821-131.00210.00178.00
16*3224-170.00276.00364.00
18*3627-216.00350.00462.00
20*4030-280.00430.00572.00
24*4836-482.00626.00830.00
*Dimensions same as Nominal Pipe Size

STAINLESS STEEL EQUAL TEES

Standard Range — InchesApproximate Weight — Pounds
Nominal Pipe SizeO.D. Outside DiameterCentre to Face CSch.5SSch.10SSch.40SSch.80S
1/20.84010.18.0200.350.45
3/41.0501-1/80.21.0280.450.65
11.3151-1/20.35.0600.750.88
1-1/41.6601-7/80.651.101.301.60
1-1/21.9002-1/4.0.891.502.002.25
22.3752-1/21.071.803.504.00
2-1/22.87532.073.006.007.00
33.5003-3/82.693.907.008.50
3-1/24.0003-3/43.384.909.0012.00
44.5004-1/83.945.7012.0015.70
55.5634-7/89.7612.0031.0026.00
66.6255-5/813.8017.0034.0040.00
88.625718.4025.0055.0075.00
1010.7508-1/230.0037.0085.00105.00
1212.7501045.7054.00120.00160.00
14*11-154.00226.00280.00
16*12-160.00242.00369.00
18*13-1/2-224.00333.00425.00
20*15-373.00504.00583.00
24*17-674.00765.00934.00
*Dimensions same as Nominal Pipe Size

STAINLESS STEEL REDUCING TEES

Standard Range — InchesApproximate Weight — Pounds
Nominal Pipe SizeO.D.Outside Diameter AO.D.Outside Diameter BCentre to End CCentre to End MSch.5SSch.10SSch.40SSch.80S
RunBranch
3/41/21.0500.8401-1/81-1/80.250.280.330.41
11/21.3150.8401-1/21-1/20.440.570.630.77
13/41.3151.0501-1/21-1/20.450.580.640.78
1-1/41/21.6600.8401-7/81-7/80.750.951.081.34
1-1/43/41.6601.0501-7/81-7/80.760.961.091.35
1-1/411.6601.3151-7/81-7/80.821.021.151.42
1-1/21/21.9000.8402-1/42-1/40.921.341.571.98
1-1/23/41.9001.0502-1/42-1/41.031.351.581.99
1-1/211.9001.3152-1/42-1/41.121.411.652.05
1-1/21-1/41.9001.6602-1/42-1/41.211.491.722.16
23/42.3751.0502-1/21-3/41.381.552.463.17
212.3751.3152-1/221.421.602.523.23
21-1/42.3751.6602-1/22-1/41.501.652.603.33
21-1/22.3751.9002-1/22-3/81.621.692.713.47
2-1/212.8751.31532-1/41.772.534.425.57
2-1/21-1/42.8751.66032-1/21.802.584.485.64
2-1/21-1/22.8751.90032-5/81.822.614.595.77
2-1/222.8752.37532-3/41.852.664.675.87
313.5001.3153-3/82-5/82.583.496.418.28
31-1/43.5001.6603-3/82-3/42.683.516.478.33
31-1/23.5001.9003-3/82-7/82.933.546.578.47
323.5002.3753-3/833.133.596.648.53
32-1/23.5002.8753-3/83-1/43.483.726.958.77
3-1/21-1/24.0001.9003-3/43-1/83.584.498.6511.32
3-1/224.0002.3753-3/43-1/43.784.538.6611.42
3-1/22-1/24.0002.8753-3/43-1/24.124.668.9711.73
3-1/234.0003.5003-3/43-5/84.474.759.1911.93
*Dimensions same as Nominal Pipe Size

STAINLESS STEEL REDUCING TEES

Standard Range — InchesApproximate Weight — Pounds
Nominal Pipe SizeO.D.Outside Diameter AO.D.Outside Diameter BCentre to End CCentre to End MSch.5SSch.10SSch.40SSch.80S
RunBranch
41-1/24.5001.9004-1/83-3/85.415.5511.1214.63
424.5002.3754-1/83-1/25.455.5911.2214.79
42-1/24.5002.8754-1/83-3/45.575.7111.5314.99
434.5003.5004-1/83-7/85.625.7611.6315.30
43-1/24.5004.0004-1/845.765.9011.8315.61
525.5632.3754-7/84-1/87.369.0717.5423.87
52-1/25.5632.8754-7/84-1/47.449.1417.7524.07
535.5633.5004-7/84-3/87.479.2017.9524.17
53-1/25.5634.0004-7/84-1/27.509.2718.1624.38
545.5634.5004-7/84-5/87.569.3518.4624.68
62-1/26.6252.8755-5/84-3/410.2012.5526.2137.64
636.6253.5005-5/84-7/810.3012.6926.3237.68
63-1/26.6254.0005-5/8510.3812.7926.5237.84
646.6254.5005-5/85-1/810.4812.9226.7237.94
656.6255.5635-5/85-3/810.6013.0627.2338.56
838.6253.5007615.9721.5646.6567.72
83-1/28.6254.0007616.0921.5846.7567.80
848.6254.50076-1/816.2021.6346.9467.91
858.6255.56376-3/816.3221.7047.1468.11
868.6256.62576-5/816.4621.8547.7368.99
10410.7504.5008-1/27-1/429.4036.0679.58103.88
10510.7505.5638-1/27-1/229.6336.3579.77104.80
10610.7506.6258-1/27-5/829.7536.6080.07105.84
10810.7508.6258-1/2829.8936.8481.34106.82
12512.7505.563108-1/250.3754.98114.64147.98
12612.7506.625108-5/850.6255.40114.70148.96
12812.7508.62510950.8055.90115.64149.94
*Dimensions same as Nominal Pipe Size

STAINLESS STEEL REDUCING TEES

Standard Range — InchesApproximate Weight — Pounds
Nominal Pipe SizeO.D.OutsideO.D.OutsideCentre toCentre toSch.5SSch.10SSch.40SSch.80S
RunBranchDiameter ADiameter BEnd CEnd M



121012.75010.750109-1/251.0656.25118.58151.90
14614.0006.625119-3/8-


14814.0008.625119-3/4-              USE APPROXIMATE WEIGHTS OF STRAIGHT TEES FOR WEIGHTS OF REDUCING TEES
141014.00010.7501110-1/8-
141214.00012.7501110-5/8-
16616.0006.62512--
16816.0008.62512--
161016.00010.75012--
161216.00012.75012--
1614**12--
18818.0008.62513-1/211-3/4-
181018.00010.75013-1/212-1/8-
181218.00012.75013-1/212-5/8-
1814**13-1/213-
1816**13-1/213-
20820.0008.6251512-3/4-
201020.00010.7501513-1/8-
201220.00012.7501513-5/8-
2014**1514-
2016**1514-
2018**1514-1/2-
241020.00010.7501715-1/8-
241220.00012.7501715-5/8-
2414**1716-
2416**1716-
2418**1716-1/2-
2420**1717-
*Dimensions same as Nominal Pipe Size

STAINLESS STEEL REDUCERS

Standard Range — InchesApproximate Weight — Pounds
Nominal Pipe SizeO.D. Outside DiameterLength HSch.5SSch.10SSch.40SSch.80S
3/4X1/21.050X0.8401-1/20.140.210.280.35
1X1/21.315X0.84020.150.250.310.36
1X3/41.315X1.05020.150.250.310.37
1-1/4X1/21.660X0.84020.200.330.430.49
1-14X3/41.660X1.05020.200.340.440.51
1-1/4X11.660X1.31520.210.350.450.54
1-1/2X1/21.900X0.8402-1/20.200.340.450.61
1-1/2X3/41.900X1.0502-1/20.220.360.480.65
1-1/2X11.900X1.3152-1/20.240.400.580.68
1-1/2X1-1/41.900X1.6602-1/20.260.430.570.73
2X1/22.375X0.84030.270.460.640.95
2X3/42.375X1.05030.310.520.731.01
2X12.375X1.31530.350.580.821.07
2X1-1/42.375X1.66030.370.620.871.16
2X1-1/22.375X1.90030.380.640.901.20
2-1/2X12.875X1.3153-1/20.540.771.311.75
2-1/2X1-1/42.875X1.6603-1/20.610.871.481.82
2-1/2X1-1/22.875X1.9003-1/20.620.901.521.89
2-1/2X22.875X2.3753-1/20.660.951.612.07
3X13.500X1.3153-1/20.620.901.581.96
3X1-1/43.500X1.6603-1/20.660.951.712.29
3X1-1/23.500X1.9003-1/20.731.062.072.44
3X23.500X2.3753-1/20.771.122.012.60
3X2-1/23.500X2.8753-1/20.831.212.172.85
3-1/2X1-1/44.000X1.66040.891.292.403.15
3-1/2X1-1/24.000X1.90040.931.342.533.38
3-1/2X24.000X2.37541.001.442.723.54
3-1/2X2-1/24.000X2.87541.091.582.973.85
3-1/2X34.000X3.50041.121.623.054.08
4X1-1/24.500X1.90040.961.392.743.82
4X24.500X2.37541.111.613.183.93
4X2-1/24.500X2.87541.171.703.354.43
4X34.500X3.50041.231.783.514.70
4X3-1/24.500X4.00041.271.833.624.88
5X25.563X2.37552.142.636.076.62
5X2-1/25.563X2.87552.342.885.547.26
5X35.563X3.50052.432.995.757.83
5X3-1/25.563X4.00052.483.055.888.04
5X45.563X4.50052.543.126.018.32
6X26.625X2.3755-1/22.803.487.259.40
6X2-1/26.625X2.8755-1/22.973.667.649.95
6X36.625X3.5005-1/23.133.848.0311.10
6X3-1/26.625X4.0005-1/23.183.918.1711.60
6X46.625X4.5005-1/23.203.938.2212.00
6X56.625X5.5635-1/23.384.158.6812.60
8X38.625X3.50063.905.3311.2014.40
8X3-1/28.625X4.00064.375.9312.9016.10
8X48.625X4.50064.476.0713.2018.60
8X58.625X5.56364.576.2013.5019.50
8X68.625X6.62564.746.4314.0020.40
10X410.750X4.50077.789.5821.2025.30
10X510.750X5.56378.049.9021.9028.70
10X610.750X6.62578.2210.1222.4029.80
10X810.750X8.62578.5510.5323.3031.40
12X512.750X5.563813.4614.6930.6039.10
12X612.750X6.625813.7314.9831.2040.60
12X812.750X8.625814.1715.4532.2042.10
12X1012.750X10.750814.8416.0833.5043.00
14X614.000X6.62513-23.0050.0068.00
14X814.000X8.62513-25.0052.0070.00
14X1014.000X10.75013-27.0054.0072.00
14X1214.000X12.75013-29.0056.0074.00
16X816.000X8.62514-31.0058.0079.00
16X1016.000X10.75014-32.0061.0081.00
16X1216.000X12.75014-33.0065.0086.00
16X14*14-35.0068.0090.00
18X1018.000X10.75015-37.0073.0092.00
18X1218.000X12.75015-39.0076.00100.00
18X14*15-40.0079.00105.00
18X16*15-42.0083.00110.00
20X1220.000X12.75020-64.00108.00139.00
20X14*20-66.00112.00148.00
20X16*20-70.00118.00156.00
20X18*20-73.00124.00165.00
24X16*20-90.00130.00196.00
24X18*20-93.00139.00200.00
24X20*20-97.00145.00204.00
*Dimensions same as Nominal Pipe Size Reducers of greater reduction are available but are not covered by ANSIB16.9

STAINLESS STEEL STUB ENDS

TYPE A & B
Standard Range — InchesApproximate Weight — Pounds
Nominal Pipe SizeO.D.Outside DiameterO.D. Outside Diameter of LapLengthRadius
Sch.5SSch.10SSch.40SSch.80S
ASAMSSType AType B
1/20.8401.3753.02.00.1250.03ASA--0.300.32







MSS0.130.170.250.27
3/41.0501.6873.02.00.1250.03ASA--0.400.44







MSS0.150.190.340.36
11.3152.0004.02.00.1250.03ASA--0.660.85







MSS0.200.310.410.49
1-1/41.6602.5004.02.00.1880.03ASA--0.911.21







MSS0.290.460.580.70
1-1/21.9002.8754.02.00.2500.03ASA--1.221.49







MSS0.350.550.830.88
22.3753.6256.02.50.3130.03ASA--2.193.01







MSS0.540.831.191.55
2-1/22.8754.1256.02.50.3130.03ASA--3.454.59







MSS0.771.041.762.36
33.5005.0006.02.50.3750.03ASA--4.716.27







MSS1.031.412.503.28
3-1/24.0005.5006.03.00.3750.03ASA--5.546.58







MSS1.331.843.253.45
44.5006.1876.03.00.4380.03ASA--6.709.33







MSS1.572.164.005.58
55.5637.3128.03.00.4380.06ASA--11.7016.60







MSS2.312.735.607.95
66.6258.5008.03.50.5000.06ASA--15.2023.00







MSS3.584.308.2012.29
88.62510.6258.04.00.5000.06ASA--23.0035.00







MSS5.406.8513.0022.23
1010.75012.75010.05.00.5000.06ASA--40.0053.60







MSS8.9110.7323.0030.80
1212.75015.00010.06.00.5000.06ASA--49.0065.80







MSS14.5715.6933.0044.00
1414.00016.25012.06.00.5000.06ASA-29.0056.0075.00







MSS-14.5028.0037.50
1616.00018.50012.06.00.5000.06ASA-33.0065.0085.00







MSS-16.5033.0042.50
1818.00021.00012.06.00.5000.06ASA-37.0073.0095.00







MSS-18.5036.5047.50
2020.00023.00012.06.00.5000.06ASA-50.0085.00115.00







MSS-25.0042.5058.00
2424.00027.25012.06.00.5000.06ASA-70.00104.00130.00







MSS-35.0052.0065.00
** Type A & B — Serrated Face

STAINLESS STEEL STUB ENDS

TYPE C
Standard Range — InchesApproximate Weight — Pounds
Nominal Pipe SizeO.D. Outside DiameterO.D. Outside Diameter of LapLengthSch.5SSch.10S
MSSASA
1/20.8401.3752.03.0.065.083
3/41.0501.6872.03.0.065.083
11.3152.0002.04.0.065.109
1-1/41.6602.5002.04.0.065.109
1-1/21.9002.8752.04.0.065.109
22.3753.6252.56.0.065.109
2-1/22.8754.1252.56.0.083.120
33.5005.0002.56.0.083.120
44.5006.1873.06.0.083.120
66.6258.5003.58.0.109.134

STAINLESS STEEL END CAP

Standard Range — InchesApproximate Weight — Pounds
Nominal Pipe h “E” SizeO.D. Outside DiameterLengthSch.5SSch.10SSch.40SSch.80S
1/20.84010.070.070.070.10
3/41.05010.100.120.130.19
11.3151-1/20.100.160.200.24
1-1/41.6601-1/20.130.220.280.35
1-1/21.9001-1/20.170.280.380.49
22.3751-1/20.240.410.580.76
2-1/22.8751-1/20.370.530.901.13
33.50020.580.831.501.96
3-1/24.0002-1/20.701.011.912.55
44.5002-1/20.881.262.503.34
55.56331.972.434.676.38
66.6253-1/22.533.116.509.37
88.62544.025.4611.8717.12
1010.75058.079.9522.0028.93
1212.750613.4914.7230.6739.61
1414.0006-1/2-18.0033.0043.00
1616.0007-23.0042.0054.00
1818.0008-29.0055.0073.00
2020.0009-37.0068.0090.00
2424.00010-1/2-58.0096.00127.00