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Malleable Iron

  • Malleable Iron Unions are available in both black and galvanized finishes.
  • Sizes of Malleable Iron Unions stocked range from 1/8" to 4".
Four different Malleable Iron Unions in black and galvanized finishes.Temperature/Pressure cross reference for Malleable Iron UnionsSizes are Nominal Pipe Size (NPS) - size chart
Malleable Iron Unions
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To start, select size. Follow the green box to refine selections as desired. Click “Lookup Product” any time after selecting size to display products matching criteria entered so far. Fields autofill when only one choice. Or use search box above.

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Class for pipe fittings is a standard defined by the ASME/ASTM. Though stated with a # sign, such as 150# or 3000#, it is not a direct pressure rating.  The pressure rating is dependent on material and temperature and is found by consulting an appropriate reference guide.
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Black - standard pipe finish. Galvanized - zinc plated for corrosion resistance.
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Domestic = Made in the USA Import = Made anywhere else
Enlarge BMI.125 STD UNION photo Enlarge
Unions » Malleable Iron
  • Product Name: BMI.125 STD UNION
  • SKU: 103866
  • Weight: .15
  • Class: 150#
  • Finish: Black
  • Origin: Import
  • Size: 0.125

Description:
IMPORT BLACK MALLEABLE IRON

FOR 1/8" PIPE(.405 OD) FEMALE THREADS, ASTM A197/ASME B16.3

Price by Quantity:
1 - 9 = $12.31
10 - 49 = $10.37
50 - 99 = $9.43
100 + = $7.54
Quantity:
–
+
We show 100 in stock
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To estimate shipping please add to cart, click checkout and enter your zipcode on the left.
All items ship from Houston, TX.

Enlarge BMI.250 STD UNION photo Enlarge
Unions » Malleable Iron
  • Product Name: BMI.250 STD UNION
  • SKU: 104313
  • Weight: .46
  • Class: 150#
  • Finish: Black
  • Origin: Import
  • Size: 0.25

Description:
IMPORT BLACK MALLEABLE IRON

FOR 1/4" PIPE(.540 OD) FEMALE THREADS, ASTM A197/ASME B16.3

Price by Quantity:
1 - 9 = $13.42
10 - 49 = $11.20
50 - 99 = $10.38
100 + = $8.14
Quantity:
–
+
We show 129 in stock
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To estimate shipping please add to cart, click checkout and enter your zipcode on the left.
All items ship from Houston, TX.

Enlarge BMI.375 STD UNION photo Enlarge
Unions » Malleable Iron
  • Product Name: BMI.375 STD UNION
  • SKU: 103876
  • Weight: .42
  • Class: 150#
  • Finish: Black
  • Origin: Import
  • Size: 0.375

Description:
IMPORT BLACK MALLEABLE IRON

FOR 3/8" PIPE(.675 OD) FEMALE THREADS, ASTM A197/ASME B16.3

Price by Quantity:
1 - 9 = $10.22
10 - 49 = $8.32
50 - 99 = $7.56
100 + = $6.05
Quantity:
–
+
We show 371 in stock
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To estimate shipping please add to cart, click checkout and enter your zipcode on the left.
All items ship from Houston, TX.

Enlarge BMI.500 STD UNION photo Enlarge
Unions » Malleable Iron
  • Product Name: BMI.500 STD UNION
  • SKU: 100976
  • Weight: .44
  • Class: 150#
  • Finish: Black
  • Origin: Import
  • Size: 0.50

Description:
IMPORT BLACK MALLEABLE IRON

FOR 1/2" PIPE(.840 OD) FEMALE THREADS, ASTM A197/ASME B16.3

Price by Quantity:
1 - 9 = $9.60
10 - 49 = $7.75
50 - 99 = $7.05
100 + = $5.64
Quantity:
–
+
We show 343 in stock
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To estimate shipping please add to cart, click checkout and enter your zipcode on the left.
All items ship from Houston, TX.

Enlarge BMI.750 STD UNION photo Enlarge
Unions » Malleable Iron
  • Product Name: BMI.750 STD UNION
  • SKU: 100977
  • Weight: .60
  • Class: 150#
  • Finish: Black
  • Origin: Import
  • Size: 0.75

Description:
IMPORT BLACK MALLEABLE IRON

FOR 3/4" PIPE(1.05 OD) FEMALE THREADS, ASTM A197/ASME B16.3

Price by Quantity:
1 - 9 = $10.88
10 - 49 = $8.91
50 - 99 = $8.10
100 + = $6.48
Quantity:
–
+
We show 316 in stock
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To estimate shipping please add to cart, click checkout and enter your zipcode on the left.
All items ship from Houston, TX.

Enlarge BMI1.00 STD UNION photo Enlarge
Unions » Malleable Iron
  • Product Name: BMI1.00 STD UNION
  • SKU: 100978
  • Weight: .79
  • Class: 150#
  • Finish: Black
  • Origin: Import
  • Size: 1.00

Description:
IMPORT BLACK MALLEABLE IRON

FOR 1" PIPE(1.315 OD) FEMALE THREADS, ASTM A197/ASME B16.3

Price by Quantity:
1 - 9 = $14.18
10 - 24 = $11.88
25 - 49 = $10.80
50 + = $8.64
Quantity:
–
+
We show 484 in stock
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To estimate shipping please add to cart, click checkout and enter your zipcode on the left.
All items ship from Houston, TX.

Enlarge BMI1.25 STD UNION photo Enlarge
Unions » Malleable Iron
  • Product Name: BMI1.25 STD UNION
  • SKU: 100979
  • Weight: 1.45
  • Class: 150#
  • Finish: Black
  • Origin: Import
  • Size: 1.25

Description:
IMPORT BLACK MALLEABLE IRON

FOR 1-1/4" PIPE(1.66 OD) FEMALE THREADS,ASTM A197/ASME B16.3

Price by Quantity:
1 - 9 = $17.57
10 - 24 = $14.94
25 - 49 = $13.85
50 + = $10.86
Quantity:
–
+
We show 122 in stock
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To estimate shipping please add to cart, click checkout and enter your zipcode on the left.
All items ship from Houston, TX.

Enlarge BMI1.50 STD UNION photo Enlarge
Unions » Malleable Iron
  • Product Name: BMI1.50 STD UNION
  • SKU: 100980
  • Weight: 1.69
  • Class: 150#
  • Finish: Black
  • Origin: Import
  • Size: 1.50

Description:
IMPORT BLACK MALLEABLE IRON

FOR 1-1/2" PIPE(1.90 OD) FEMALE THREADS,ASTM A197/ASME B16.3

Price by Quantity:
1 - 9 = $22.41
10 - 24 = $19.31
25 - 49 = $17.55
50 + = $12.29
Quantity:
–
+
We show 127 in stock
cart-icon

To estimate shipping please add to cart, click checkout and enter your zipcode on the left.
All items ship from Houston, TX.

Enlarge BMI2.00 STD UNION photo Enlarge
Unions » Malleable Iron
  • Product Name: BMI2.00 STD UNION
  • SKU: 100981
  • Weight: 2.67
  • Class: 150#
  • Finish: Black
  • Origin: Import
  • Size: 2.00

Description:
IMPORT BLACK MALLEABLE IRON

FOR 2" PIPE(2.375 OD) FEMALE THREADS, ASTM A197/ASME B16.3

Price by Quantity:
1 - 9 = $36.26
10 - 24 = $30.44
25 - 49 = $27.68
50 + = $22.14
Quantity:
–
+
We show 381 in stock
cart-icon

To estimate shipping please add to cart, click checkout and enter your zipcode on the left.
All items ship from Houston, TX.

Enlarge BMI2.50 STD UNION photo Enlarge
Unions » Malleable Iron
  • Product Name: BMI2.50 STD UNION
  • SKU: 103907
  • Weight: 3.60
  • Class: 150#
  • Finish: Black
  • Origin: Import
  • Size: 2.50

Description:
IMPORT BLACK MALLEABLE IRON

FOR 2-1/2" PIPE(2.875 OD) FEMALE THREAD,ASTM A197/ASME B16.3

Price by Quantity:
1 - 9 = $87.35
10 - 24 = $74.25
25 - 49 = $68.85
50 + = $54.00
Quantity:
–
+
We show 51 in stock
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To estimate shipping please add to cart, click checkout and enter your zipcode on the left.
All items ship from Houston, TX.

Enlarge BMI3.00 STD UNION photo Enlarge
Unions » Malleable Iron
  • Product Name: BMI3.00 STD UNION
  • SKU: 101622
  • Weight: 5.14
  • Class: 150#
  • Finish: Black
  • Origin: Import
  • Size: 3.00

Description:
IMPORT BLACK MALLEABLE IRON

FOR 3" PIPE(3.50 OD) FEMALE THREADS, ASTM A197/ASME B16.3

Price by Quantity:
1 - 9 = $65.00
10 - 24 = $51.22
25 - 49 = $45.37
50 + = $40.98
Quantity:
–
+
We show 78 in stock
cart-icon

To estimate shipping please add to cart, click checkout and enter your zipcode on the left.
All items ship from Houston, TX.

Enlarge BMI4.00 STD UNION photo Enlarge
Unions » Malleable Iron
  • Product Name: BMI4.00 STD UNION
  • SKU: 103946
  • Weight: 10.38
  • Class: 150#
  • Finish: Black
  • Origin: Import
  • Size: 4.00

Description:
IMPORT BLACK MALLEABLE IRON

FOR 4" PIPE(4.50 OD) FEMALES THREADS, ASTM A197/ASME B16.3

Price by Quantity:
1 - 9 = $158.36
10 - 24 = $126.65
25 - 49 = $112.17
50 + = $101.32
Quantity:
–
+
We show 57 in stock
cart-icon

To estimate shipping please add to cart, click checkout and enter your zipcode on the left.
All items ship from Houston, TX.

Enlarge GMI.250 STD UNION photo Enlarge
Unions » Malleable Iron
  • Product Name: GMI.250 STD UNION
  • SKU: 107807
  • Weight: .47
  • Class: 150#
  • Finish: Galvanized
  • Origin: Import
  • Size: 0.25

Description:
IMPORT GALV MALLEABLE IRON

FOR 1/4" PIPE(.540 OD) FEMALE THREADS, ASTM A153/ASME B16.3

Price by Quantity:
1 - 9 = $10.71
10 - 49 = $8.76
50 - 99 = $8.12
100 + = $6.37
Quantity:
–
+
We show 148 in stock
cart-icon

To estimate shipping please add to cart, click checkout and enter your zipcode on the left.
All items ship from Houston, TX.

Enlarge GMI.500 STD UNION photo Enlarge
Unions » Malleable Iron
  • Product Name: GMI.500 STD UNION
  • SKU: 104987
  • Weight: .45
  • Class: 150#
  • Finish: Galvanized
  • Origin: Import
  • Size: 0.50

Description:
IMPORT GALV MALLEABLE IRON

FOR 1/2" PIPE(.840 OD) FEMALE THREADS, ASTM A153/ASME B16.3

Price by Quantity:
1 - 9 = $11.54
10 - 49 = $9.50
50 - 99 = $8.64
100 + = $6.05
Quantity:
–
+
We show 162 in stock
cart-icon

To estimate shipping please add to cart, click checkout and enter your zipcode on the left.
All items ship from Houston, TX.

Enlarge GMI.750 STD UNION photo Enlarge
Unions » Malleable Iron
  • Product Name: GMI.750 STD UNION
  • SKU: 103444
  • Weight: .63
  • Class: 150#
  • Finish: Galvanized
  • Origin: Import
  • Size: 0.75

Description:
IMPORT GALV MALLEABLE IRON

FOR 3/4" PIPE(1.05 OD) FEMALE THREADS, ASTM A153/ASME B16.3

Price by Quantity:
1 - 9 = $14.51
10 - 49 = $12.18
50 - 99 = $11.07
100 + = $8.86
Quantity:
–
+
We show 214 in stock
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To estimate shipping please add to cart, click checkout and enter your zipcode on the left.
All items ship from Houston, TX.

Enlarge GMI1.00 STD UNION photo Enlarge
Unions » Malleable Iron
  • Product Name: GMI1.00 STD UNION
  • SKU: 106372
  • Weight: .94
  • Class: 150#
  • Finish: Galvanized
  • Origin: Import
  • Size: 1.00

Description:
IMPORT GALV MALLEABLE IRON

FOR 1" PIPE(1.315 OD) FEMALE THREADS, ASTM A153/ASME B16.3

Price by Quantity:
1 - 9 = $16.81
10 - 24 = $14.26
25 - 49 = $12.96
50 + = $10.37
Quantity:
–
+
We show 285 in stock
cart-icon

To estimate shipping please add to cart, click checkout and enter your zipcode on the left.
All items ship from Houston, TX.

Enlarge GMI1.25 STD UNION photo Enlarge
Unions » Malleable Iron
  • Product Name: GMI1.25 STD UNION
  • SKU: 101232
  • Weight: 1.45
  • Class: 150#
  • Finish: Galvanized
  • Origin: Import
  • Size: 1.25

Description:
IMPORT GALV MALLEABLE IRON

FOR 1-1/4" PIPE(1.66 OD) FEMALE THREADS, ASTM A153/ASME B16.

Price by Quantity:
1 - 9 = $21.59
10 - 24 = $18.56
25 - 49 = $17.21
50 + = $13.50
Quantity:
–
+
We show 55 in stock
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To estimate shipping please add to cart, click checkout and enter your zipcode on the left.
All items ship from Houston, TX.

Enlarge GMI1.50 STD UNION photo Enlarge
Unions » Malleable Iron
  • Product Name: GMI1.50 STD UNION
  • SKU: 102236
  • Weight: 1.72
  • Class: 150#
  • Finish: Galvanized
  • Origin: Import
  • Size: 1.50

Description:
IMPORT GALV MALLEABLE IRON

FOR 1-1/2" PIPE(1.90 OD) FEMALE THREADS,ASTM A153/ASME B16.3

Price by Quantity:
1 - 9 = $28.23
10 - 24 = $23.20
25 - 49 = $21.51
50 + = $16.87
Quantity:
–
+
We show 48 in stock
cart-icon

To estimate shipping please add to cart, click checkout and enter your zipcode on the left.
All items ship from Houston, TX.

Enlarge GMI2.00 STD UNION photo Enlarge
Unions » Malleable Iron
  • Product Name: GMI2.00 STD UNION
  • SKU: 101797
  • Weight: 2.44
  • Class: 150#
  • Finish: Galvanized
  • Origin: Import
  • Size: 2.00

Description:
IMPORT GALV MALLEABLE IRON

FOR 2" PIPE(2.375 OD) FEMALE THREADS, ASTM A153/ASME B16.3

Price by Quantity:
1 - 9 = $37.09
10 - 24 = $31.19
25 - 49 = $28.92
50 + = $22.68
Quantity:
–
+
We show 146 in stock
cart-icon

To estimate shipping please add to cart, click checkout and enter your zipcode on the left.
All items ship from Houston, TX.

Enlarge GMI2.50 STD UNION photo Enlarge
Unions » Malleable Iron
  • Product Name: GMI2.50 STD UNION
  • SKU: 100885
  • Weight: 3.70
  • Class: 150#
  • Finish: Galvanized
  • Origin: Import
  • Size: 2.50

Description:
IMPORT GALV MALLEABLE IRON

FOR 2-1/2 PIPE(2.875 OD) FEMALE THREADS,ASTM A197/ASME B16.3

Price by Quantity:
1 - 9 = $100.53
10 - 24 = $86.13
25 - 49 = $78.30
50 + = $62.64
Quantity:
–
+
We show 33 in stock
cart-icon

To estimate shipping please add to cart, click checkout and enter your zipcode on the left.
All items ship from Houston, TX.

Enlarge GMI3.00 STD UNION photo Enlarge
Unions » Malleable Iron
  • Product Name: GMI3.00 STD UNION
  • SKU: 103157
  • Weight: 4.98
  • Class: 150#
  • Finish: Galvanized
  • Origin: Import
  • Size: 3.00

Description:
IMPORT GALV MALLEABLE IRON

FOR 3" PIPE(3.50 OD) FEMALE THREADS, ASTM A153/ASME B16.3

Price by Quantity:
1 - 9 = $102.42
10 - 24 = $83.16
25 - 49 = $78.41
50 + = $73.66
Quantity:
–
+
We show 37 in stock
cart-icon

To estimate shipping please add to cart, click checkout and enter your zipcode on the left.
All items ship from Houston, TX.

Enlarge GMI4.00 STD UNION photo Enlarge
Unions » Malleable Iron
  • Product Name: GMI4.00 STD UNION
  • SKU: 108933
  • Weight: 10.50
  • Class: 150#
  • Finish: Galvanized
  • Origin: Import
  • Size: 4.00

Description:
IMPORT GALV MALLEABLE IRON

FOR 4 PIPE(4.50 OD) FEMALE THREADS, ASTM A153/ASME B16.3

Price by Quantity:
1 - 9 = $210.41
10 - 24 = $171.08
25 - 49 = $161.31
50 + = $151.53
Quantity:
–
+
We show 30 in stock
cart-icon

To estimate shipping please add to cart, click checkout and enter your zipcode on the left.
All items ship from Houston, TX.