3000 lb Stainless Steel Forged Unions

3000 lb Stainless Steel Forged Unions

The product table below lists 304 and 316 stainless steel 3000 lb forged unions, threaded and socket weld, from 1/4" to 2". Dimension charts follow the table.

Get a price: the product table below lists prices; for a size, end connection or grade that is not listed, call (800) 282-9694 or send us a message.

Our 3000# stainless steel forged unions are available in both threaded and socket weld 304 stainless steel and 316 stainless steel. Our stainless steel unions are of high quality and corrosion resistant for harsh, industrial environments.
Sizes: 1/4" - 2"
Pressure: Class 3000
End Connections: Threaded - Socket Weld
Grades: 304 - 316
Filter Products
Size
Reducing Size
Grade
Sort by Size (low to high)
32 Products 32 Products 32 Product No results found
25 Per Page
Filters Sort results
Reset Apply
Size
Product Type
Reducing
Pressure
End Type
Grade
Price
Quantity
1/4
Union
3000#
Socket Weld
304 Stainless
$37.60
Max:
Min: 1
Step: 1
1/4
Union
3000#
Socket Weld
316 Stainless
$39.54
Max:
Min: 1
Step: 1
1/4
Union
3000#
Threaded
304 Stainless
$37.60
Max:
Min: 1
Step: 1
1/4
Union
3000#
Threaded
316 Stainless
$39.54
Max:
Min: 1
Step: 1
3/8
Union
3000#
Socket Weld
304 Stainless
$40.18
Max:
Min: 1
Step: 1
3/8
Union
3000#
Socket Weld
316 Stainless
$45.72
Max:
Min: 1
Step: 1
3/8
Union
3000#
Threaded
304 Stainless
$40.18
Max:
Min: 1
Step: 1
3/8
Union
3000#
Threaded
316 Stainless
$45.72
Max:
Min: 1
Step: 1
1/2
Union
3000#
Socket Weld
304 Stainless
$40.18
Max:
Min: 1
Step: 1
1/2
Union
3000#
Socket Weld
316 Stainless
$45.79
Max:
Min: 1
Step: 1
1/2
Union
3000#
Threaded
304 Stainless
$40.18
Max:
Min: 1
Step: 1
1/2
Union
3000#
Threaded
316 Stainless
$45.79
Max:
Min: 1
Step: 1
3/4
Union
3000#
Socket Weld
304 Stainless
$49.24
Max:
Min: 1
Step: 1
3/4
Union
3000#
Socket Weld
316 Stainless
$59.67
Max:
Min: 1
Step: 1
3/4
Union
3000#
Threaded
304 Stainless
$49.24
Max:
Min: 1
Step: 1
3/4
Union
3000#
Threaded
316 Stainless
$59.67
Max:
Min: 1
Step: 1
1
Union
3000#
Socket Weld
304 Stainless
$79.43
Max:
Min: 1
Step: 1
1
Union
3000#
Socket Weld
316 Stainless
$96.03
Max:
Min: 1
Step: 1
1
Union
3000#
Threaded
304 Stainless
$79.37
Max:
Min: 1
Step: 1
1
Union
3000#
Threaded
316 Stainless
$96.03
Max:
Min: 1
Step: 1
1 1/4
Union
3000#
Socket Weld
304 Stainless
$119.13
Max:
Min: 1
Step: 1
1 1/4
Union
3000#
Socket Weld
316 Stainless
$148.70
Max:
Min: 1
Step: 1
1 1/4
Union
3000#
Threaded
304 Stainless
$119.13
Max:
Min: 1
Step: 1
1 1/4
Union
3000#
Threaded
316 Stainless
$142.31
Max:
Min: 1
Step: 1
1 1/2
Union
3000#
Socket Weld
304 Stainless
$134.33
Max:
Min: 1
Step: 1
12

Product Info

We carry an extensive inventory of 3000# stainless steel forged unions in many grades and multiple sizes. View our stainless products line card.

Dimensions

Dimensions in inches, from our forged fitting data sheets. The columns use the letters on our drawings; not every drawing marks every letter. The threaded and socket weld drawings use some of the same letters for different dimensions.

Charts on this page: Threaded · Socket Weld

Threaded

Drawing of a threaded forged union from our data sheet, with its dimension letters
Drawing from our data sheet. Open the drawing full size.
Unions, Threaded: Dimensions (Inches)
SizeA
Pipe End, Min.
C
Wall, Min.
D
Water Way Bore
F
Male Flange, Min.
G
Nut, Min.
J
Bearing, Min.
L
Length Assembled
N
Clear Assembled Nut
1/8"0.5790.0950.269
0.253
0.1250.1260.0491.6301.929
1/4"0.7480.1190.388
0.372
0.1250.1260.0491.6301.929
3/8"0.9020.1260.548
0.532
0.1350.1340.0541.8112.165
1/2"1.0910.1470.688
0.672
0.1450.1460.0591.9292.244
3/4"1.3190.1540.858
0.842
0.1600.1610.0662.2402.638
1"1.6300.1791.108
1.092
0.1800.1730.0732.4413.110
1-1/4"1.9880.1911.408
1.392
0.2100.2050.0842.7993.701
1-1/2"2.2520.2001.638
1.622
0.2300.2200.0913.0084.370
2"2.7600.2182.068
2.052
0.2600.2520.1063.3905.197
2-1/2"3.3580.2762.548
2.532
0.2950.2800.1214.0315.827
3"4.0310.3003.058
3.042
0.3250.3150.1394.2916.890

Swipe the chart sideways to see every column.

The chart includes sizes on our data sheet that are not in the product table above. Call us for availability.

Where a cell shows two figures, both are printed on our data sheet, which does not label them separately.

Socket Weld

Drawing of a socket weld forged union from our data sheet, with its dimension letters
Drawing from our data sheet. Open the drawing full size.
Unions, Socket Weld: Dimensions (Inches)
SizeA
Pipe End, Min.
B
Socket Bore
C
Socket Wall, Min.
D
Water Way Bore
E
Laying Length
F
Male Flange, Min.
G
Nut, Min.
J
Bearing, Min.
K
Socket Depth, Min.
L
Length Assembled
N
Clear Assembled Nut
1/8"0.8580.430
0.420
0.1250.269
0.253
0.882
0.748
0.1250.1250.0490.3781.6301.929
1/4"0.8580.560
0.550
0.1300.388
0.372
0.882
0.748
0.1250.1250.0490.3781.6301.929
3/8"1.0200.700
0.690
0.1370.548
0.532
1.059
0.811
0.1350.1350.0540.3781.8112.165
1/2"1.2280.860
0.850
0.1600.688
0.672
1.059
0.811
0.1450.1450.0590.3781.9292.244
3/4"1.4611.070
1.060
0.1680.858
0.842
1.252
1.000
0.1600.1600.0660.5002.2402.638
1"1.7911.340
1.330
0.1951.108
1.092
1.350
1.031
0.1800.1750.0730.5002.4413.110
1-1/4"2.1611.680
1.670
0.2081.408
1.392
1.598
1.280
0.2100.2050.0840.5002.7993.701
1-1/2"2.4211.920
1.910
0.2181.638
1.622
1.661
1.339
0.2300.2200.0910.5003.0124.370
2"2.9612.420
2.410
0.2382.068
2.052
1.791
1.469
0.2600.2500.1060.6223.3905.197
2-1/2"3.6102.920
2.900
0.3012.548
2.532
2.429
2.051
0.2950.2800.1210.6224.0315.827
3"4.2993.550
3.530
0.3273.058
3.042
2.512
2.110
0.3250.3150.1390.6224.2916.890

Swipe the chart sideways to see every column.

The chart includes sizes on our data sheet that are not in the product table above. Call us for availability.

Where a cell shows two figures, both are printed on our data sheet, which does not label them separately.

Standard Specifications

3000# unions are manufactured in accordance with ASTM A182 for material and ANSI B16.11 for dimensional specifications.

Stainless Steel Grades

View our stainless steel grades resource chart.

Reference Catalog

View thousands of stainless steel pipe and tubing products and various custom fabrication services Shaw Stainless offers. This Reference Catalog identifies stainless steel pipe unions and other stainless steel forged fittings with specification charts and illustrations. Some dimensions in the Reference Catalog differ from the charts on this page.

Additional Info

The union is a pipe fitting designed for a simple connection and disconnection for any future pipe maintenance and replacements. The union is similar to the coupling, but a coupling requires additional, lengthy work to disconnect and remove from the piping system. Unions have three parts to the configuration consisting of a male end, a hex nut and a female end.

Frequently Asked Questions

What sizes of 3000 lb forged unions do you carry?

The product table on this page lists 304 and 316 stainless steel 3000 lb forged unions, threaded and socket weld, from 1/4" to 2". For other sizes or grades, call (800) 282-9694 or send us a message.

How long is a 1" union?

Our data sheets give an assembled length (L) of 2.441" for a 1" union, threaded or socket weld.

Why does this page have two charts?

Our data sheets have a threaded chart and a socket weld chart, each with its own drawing. Each chart uses the letters on its own drawing.

How do I get a price?

Prices are listed in the product table on this page. For a size, end connection or grade that is not listed, call (800) 282-9694 or send us a message.