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Steel Conduit

MasterFormat 26 05 26 Grounding and Bonding for Electrical Systems

This information reflects our best understanding of product composition in 2015, with the exception of the following components that have since had their composition updated: Chromate Pretreatment (updated 2024).

Electric Rigid Steel Conduit (ERSC) is defined by the National Electrical Manufacturers Association as a "threadable steel raceway of circular cross-section designed for the physical protection and routing of wire conductors and use as an...

More about Steel Conduit

Electric Rigid Steel Conduit (ERSC) is defined by the National Electrical Manufacturers Association as a "threadable steel raceway of circular cross-section designed for the physical protection and routing of wire conductors and use as an equipment grounding conductor." There is no one ASTM standard for ERSC, but it is manufactured to ANSI standard C80.1 and UL6. According to these standards, ERSC is produced in nominal 10 ft lengths, with threaded ends and one coupling attached. The exterior surface is protected with a metallic zinc coating or alternative protection coating such as PVC while the interior surface is protected with a zinc or organic coating, such as a polyester powder coating. In order to protect the newly galvanized zinc from white rust, an additional chromium coating, most commonly trivalent chromium, is needed. Chromium coatings may also serve as a conversion coating which prepares the surface for paint adhesion. Most frequently, many specifications referred to hot dipped galvanization along with a hot dipped organic coating. Zinc and chromium coatings are assumed to be present on the interior and exterior surfaces of the conduit and polyester powder coatings are assumed to be present on the interior surface of the conduit.

Name % Weight Whole Function GREENSCREEN® Sources
Iron, elemental
7439-89-6
94.81% base metal Subscribe to view
Manganese
7439-96-5
0.58% metal alloy Subscribe to view
Nickel
7440-02-0
0.39% metal alloy Subscribe to view
Chromium
7440-47-3
0.39% metal alloy Subscribe to view
Copper
7440-50-8
0.39% metal alloy Subscribe to view
Silicon, elemental
7440-21-3
0.19% metal alloy Subscribe to view
Carbon
7440-44-0
0.18% metal alloy Subscribe to view
MOLYBDENUM
7439-98-7
0.15% metal alloy Subscribe to view
Vanadium, elemental
7440-62-2
0.08% metal alloy Subscribe to view
Sulfur, precipitated
7704-34-9
0.03% metal alloy Subscribe to view
PHOSPHORUS
7723-14-0
0.04% metal alloy Subscribe to view
Zinc, elemental
7440-66-6
2.46% coating element (sacrificial anode) Subscribe to view
Aluminum
7429-90-5
<0.01% adhesion promotion/ zinc residual Subscribe to view
1,3-Benzenedicarboxylic acid, polymer with 1,4-benzenedicarboxylic acid, 2,2-dimethyl-1,3-propanediol, 1,2-ethanediol and hexanedioic acid
40471-09-8
0.18% polyester resin Subscribe to view
Barium sulfate
7727-43-7
0.07% filler and pigment Subscribe to view
Titanium dioxide
13463-67-7
0.04% filler and pigment Subscribe to view
2-Propenoic acid, ethyl ester, polymer with 2-ethylhexyl 2-propenoate
26376-86-3
<0.01% flow and leveling agent Subscribe to view
SILICA GEL
112926-00-8
<0.01% flow and leveling agent Subscribe to view
Benzoin
119-53-9
<0.01% debubbling and leveling agent Subscribe to view
CHROMIUM (VI)
18540-29-9
<0.01% Corrosion Inhibitor Subscribe to view
Name % Weight Part % Weight Whole Function GREENSCREEN® Sources
Base Steel
97.23% 97.23% Subscribe to view
Iron, elemental
7439-89-6
(Nested within Base Steel)
97.51% 94.81% base metal Subscribe to view
Manganese
7439-96-5
(Nested within Base Steel)
0.60% 0.58% metal alloy Subscribe to view
Nickel
7440-02-0
(Nested within Base Steel)
0.40% 0.39% metal alloy Subscribe to view
Chromium
7440-47-3
(Nested within Base Steel)
0.40% 0.39% metal alloy Subscribe to view
Copper
7440-50-8
(Nested within Base Steel)
0.40% 0.39% metal alloy Subscribe to view
Silicon, elemental
7440-21-3
(Nested within Base Steel)
0.20% 0.19% metal alloy Subscribe to view
Carbon
7440-44-0
(Nested within Base Steel)
0.18% 0.18% metal alloy Subscribe to view
MOLYBDENUM
7439-98-7
(Nested within Base Steel)
0.15% 0.15% metal alloy Subscribe to view
Vanadium, elemental
7440-62-2
(Nested within Base Steel)
0.08% 0.08% metal alloy Subscribe to view
Sulfur, precipitated
7704-34-9
(Nested within Base Steel)
0.04% 0.03% metal alloy Subscribe to view
PHOSPHORUS
7723-14-0
(Nested within Base Steel)
0.04% 0.04% metal alloy Subscribe to view
Galvanized Coating
2.46% 2.46% corrosion protective coating Subscribe to view
Zinc, elemental
7440-66-6
(Nested within Galvanized Coating)
99.99% 2.46% coating element (sacrificial anode) Subscribe to view
Aluminum
7429-90-5
(Nested within Galvanized Coating)
0.01% <0.01% adhesion promotion/ zinc residual Subscribe to view
Polyester Powder Coating (cured)
0.30% 0.30% corrosion protective coating Subscribe to view
1,3-Benzenedicarboxylic acid, polymer with 1,4-benzenedicarboxylic acid, 2,2-dimethyl-1,3-propanediol, 1,2-ethanediol and hexanedioic acid
40471-09-8
(Nested within Polyester Powder Coating (cured))
60.65% 0.18% polyester resin Subscribe to view
Barium sulfate
7727-43-7
(Nested within Polyester Powder Coating (cured))
24.08% 0.07% filler and pigment Subscribe to view
Titanium dioxide
13463-67-7
(Nested within Polyester Powder Coating (cured))
14.14% 0.04% filler and pigment Subscribe to view
2-Propenoic acid, ethyl ester, polymer with 2-ethylhexyl 2-propenoate
26376-86-3
(Nested within Polyester Powder Coating (cured))
0.59% <0.01% flow and leveling agent Subscribe to view
SILICA GEL
112926-00-8
(Nested within Polyester Powder Coating (cured))
0.30% <0.01% flow and leveling agent Subscribe to view
Benzoin
119-53-9
(Nested within Polyester Powder Coating (cured))
0.24% <0.01% debubbling and leveling agent Subscribe to view
Chromate Pretreatment
<0.01% <0.01% Corrosion inhibitor Subscribe to view
CHROMIUM (VI)
18540-29-9
(Nested within Chromate Pretreatment)
100.00% <0.01% Corrosion Inhibitor Subscribe to view

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Known or Potential Residuals

Known or Potential Residuals for Chemical
CASRN NAME GREENSCREEN® TYPE FREQUENCY % Weight Chemical % Weight Product SOURCE
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Other Process Chemicals

Other Process Chemicals for Chemical
CASRN NAME GREENSCREEN® TYPE FREQUENCY % WT CHEM % WT PRODUCT SOURCES
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Sources

Sources for Common Product Data
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A123
A513
A53
AAMA user guide
Allied
Allied Masterformat
Allied MSDS
Allied Spec
Asterion
ASTM A53
Axaltac
Azo
B201
B6
Benzoin MSDS
Bhatt 2009
Bonderite 1310 MSDS
Bonderite 1310 REPL ZAL MSDS
C80.1
Calbond Catalog
Calbrite
ClarkDietrich Cold-formed Steel Framing A1003 HPD
CN103741128A
Colorado Spec
CP MSDS
D2092
Duraguard
Eastman Polyester
ECHA
ECNKorns
ELV 7100
Engineering Toolbox - pipe threads
EP1165712B1
EP1972672A2
EP2035478A2
Fera
Galvanizeit 1999
GalvInfo Note 5
Gharbi_Materials_Degradation_2018
Hex Chrome WP
HFSD Clear MSDS
IARC
IARC
IGC White Rust
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KorKap catalog
Lead WP
LHC AZ Spec
Linden Group
Lintec
Low Temp Clear MSDS
MBA Cold-Formed Steel HPD
NAWIC
NEMA 2008-UL 6
NEMA CS
NH
NICNAS 1993
OSHA
PDM MSDS
Permacote Specs
Permapipe
PHD Conduit
PL-200 TDS
PlastiBond catalog
Powder Coatings
Powdura Super Durable TGIC MSDS
Powdura TGIC - ANSI 70 gray MSDS
Powdura TGIC - architectural bronze MSDS
Powdura TGIC - barn red MSDS
Powdura TGIC - black MSDS
Powdura TGIC - coastal white MSDS
Powdura TGIC - enviro green MSDS
Powdura TGIC - equipment blue MSDS
Powdura TGIC - light grey MSDS
Powdura TGIC - NL yellow MSDS
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Powdura TGIC - safety orange MSDS
Powdura TGIC-free MSDS
Republic
Republic Spec
Resiflow PL-200
Resiflow PV5
Resiflow Tech
SAS Metal Ceilings Brochure
SCDOT Spec
Series 17
Series 29
Series 68
SIDS Carbon black
SurTec 680
SurTec 680 LC
TCI 10000
TCI 11000
Theoretical yield
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Tripass
TURI
Unified alloys
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Wheatland MSDS
WT&C MSDS