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A795 Type E Grade A

Citizen Metals will begin production of round electric resistance welded (ERW) hot rolled black and hot-dipped galvanized steel pipe to meet ASTM specification A795 Type E Grade A schedule 10 in the first quarter of 2016. Produced in nominal pipe sizes (NPS) beginning at 4" (4.50" OD) through 8" (8.625" OD), Citizen Metals's A795 pipe will be produced for light-weight fire sprinkler pipe applications. 

Size & Wall ​Dimensions

Below are the light-weight fire protection pipe schedule 10 sizes that Valmont will produce that meet ASTM A795. 

NPSODNom Wall 
4"4.50" .120"
5"5.563" .134"
6"6.625" .134"
8" 8.625" .188"

Chemical Requirements

Chemical requirements for A795 Type E electric resistance welded pipe Grade A are as follows.  
Feature​Composition
Carbon %0.25 max
Manganese %0.95 max 
Phosphorous % 0.035 max 
Sulfur % 0.035 max 

Specification Notes

  • Chemical properties, flattening test, and hydrostatic testing or eddy current testing (NH) is required to meet ASTM A795 Type E Grade A.  As a standard, Citizen Metals will produce fire sprinkler pipe using the eddy current testing (NH) alternative to hydro testing. 
  • If testing requirements differ from the A795 Grade A requirements listed above, please note at time of inquiry and order placement.
  • Ends of the pipe shall be furnished as plain end unless otherwise specified (i.e. roll grooved end) by the customer at the time of inquiry and order placement. 
  • Citizen Metals does not produce pipe to meet A795 schedule 30 or schedule 40 wall thicknesses. 
  • For more detailed information on the A795 specification and to purchase a copy of it, please visit the ASTM website.

Please contact one of our knowledgeable sales staff members who will assist you with any further questions regarding this specification or with your specific tubing requirements.

Standard Specification for Black and Hot-Dipped Zinc-Coated (Galvanized) Welded and Seamless Steel Pipe for Fire Protection Use

ASTM A 795 / ASME SA 795 

STANDARD SPECIFICATION FOR BLACK AND HOT-DIPPED ZINC COATED(GALVANIZED)
WELDED AND SEAMLESS STEEL PIPE FOR FIRE PROTECTION USE

1. Scope

1.1 This specification covers black and got-dipped galvanized welded and seamless steel pipe in sizes NPS 1/2(Note 1) to NPS 10 inclusive, with wall thickness as given in Talbes 2 and 3.

Pipe having other wall thicknesses may be furnished provided such pipe complies with all other requirements of this specification and the outside diametr is limited to those in the talbes. Pipe ordered under this specification is intended for use in fire protection systems. 

The pipe may ve bent, but it is not intended for bending made at ambient tmeperature where in the inside diameter of the bend is less than twelve times the outside diameter of the pipe bing bent(Note2). 

Note 1- the diamensionless designator NPS(nominal pipe size)gas been substituted in this standard for such traditional terms as "nominla diameter," "size," and "nominla size." Note 2- Successful bending of pipe is a function of equipment and technique as well a spipe properties. 


1.2 This pipe is suitable for hoining by the following methods : 

1.2.1 Light-Weight fire Protection Pipe-Rolled groove, welding, and gittings for plain end pipe. See Table 2 for dimensions. 

1.2.2 Standard-Weight fire Protection Fire Protection Pipe-Cut or rolled groove, threading, welding and gittings for plain end pipe. See Table 3 for dimensions. 

1.2.3 for pipe having dimensions other than those of Talbes 2 and 3, the hoining method must be compatile with the pipe dimensions. a complete lising of standard light weight dimensions appears in ANSI b36.10 and B36.19. 

1.3 The following precautionary caveat pertains only to the test method portion, Sections 8, 9, and 10, of this specification : This standard does not purport to address all of the safety problems, if any, associated with its use. It is the responibillity of the user of this standard to establish appropriate safety and gealth practices and determine the applicability of regulatory limitaions prior to use.

A795 pipe Chemical composition

 Composition, max, %
CMnPS
Type e(electric-resistance-welded) & Type S(seamless pipe)
Open-hearth, electric-fumace or basic-oxygen:
Grade A0.250.950.0350.035
Grade B0.301.200.0350.035
Type F(furnace welded pipe)
Open-hearth, electric-fumace, or basic oxygen0.0500.045


A795 pipe Mechanical Properties 
TABLE 2 Dimesions, Weights, and Test Pressure For Light file Protection Pipe-Schedule 10A


NPS DesignatorOutside DiameterNominal Wall ThicknessWeight Plain EndTest Pressures
Fumace-WeldedSeamless and Electric-Resistance Weld
in.mmin.mmlb/ftkg/mpsiMPapsiMPa
3/41.05026.70.08.2.110.861.285003.457004.83
11.31533.40.1092.771.402.15003.457004.83
1 1/41.66042.10.1092.771.812.725003.4510006.89
1 1/21.90048.30.1092.772.083.125003.4510006.89
22.37560.30.1092.772.643.965003.4510006.89
2 1/22.87573.00.1203.053.535.305003.4510006.89
33.50088.90.1203.054.336.505003.4510006.89
3 1/24.000101.60.1203.054.977.465003.4512008.27
44.500114.30.1203.055.618.365003.45 12008.27
55.563141.30.1343.407.7711.58BB12008.27
66.625168.30.1343.409.2913.84BB10006.89
88.625219.10.188C4.816.9425.41BB8005.51
1010.750273.00.188C4.821.2131.82BB7004.83

A Schedule 10 corresponds to Schedule 10S as listed in ANSI B36.19 for NPS 3/4 through 6 only.  B Fumace-welded pipe is not amde in sizes larger than NPS 4.  CNOt Schedule 10. 

TABLE3 Dimensions, Weight, Test Pressures For Standard-Weight Fire Protection Pipe-Schedule 30 and Schedule 40 


NPS DesignatorOutside DiameterNominal Wall ThicknessCWeight Plain EndWeight Thread And CouplingsATest Pressure
Fumace-WeldedSeamless and Electric-Resistance Weld
in.mmin.mmlb/ftkg/mlb/ftkg/mpsiMPapsiMPa
1/20.84021.30.1092.770.851.270.851.277004.837004.83
3/41.05026.70.1132.871.131.681.131.687004.837004.83
11.31533.40.1333.381.682.501.682.507004.837004.83
1 1/41.66042.10.1403.562.273.382.283.3810006.8910006.89
1 1/21.90048.30.1453.682.724.052.734.0610006.8910006.89
22.37560.30.1543.913.655.433.685.4810006.8910006.89
2 1/22.87573.00.2035.165.798.625.828.6610006.8910006.89
33.50088.90.2165.497.5811.287.6211.3410006.8910006.89
3 124.00101.60.2265.749.1113.569.2013.6812008.2712008.27
44.500114.30.2376.0210.7916.0610.9016.2212008.2712008.27
55.563141.30.2586.5514.6221.7614.8122.04  BB12008.27
66.625168.30.2807.1118.9728.3419.1828.66  BB12008.27
88.625219.10.277C7.0424.7036.9025.5538.17  BB12008.27
1010.750273.00.277C7.8034.2451.1635.7553.41  BB10006.89

A Based on 20-ft (6.1-m) lengths.  B Fumace-welded pipe is not made in sizes larger than NPS 4. CNPS 1/2 through 6-Schedule 40; NPS 8 and 10-Schedule 30.

TABLE3 Dimensions, Weight, Test Pressures For Standard-Weight Fire Protection Pipe Schedule 30 and Schedule 40 

NPS DesignatorOutside DiameterNominal Wall ThicknessCWeight Plain EndWeight Thread And CouplingsATest Pressure
Fumace-WeldedSeamless and Electric-Resistance Weld
in.mmin.mmlb/ftkg/mlb/ftkg/mpsiMPapsiMPa
1/20.84021.30.1092.770.851.270.851.277004.837004.83
3/41.05026.70.1132.871.131.681.131.687004.837004.83
11.31533.40.1333.381.682.501.682.507004.837004.83
1 1/41.66042.10.1403.562.273.382.283.3810006.8910006.89
1 1/21.90048.30.1453.682.724.052.734.0610006.8910006.89
22.37560.30.1543.913.655.433.685.4810006.8910006.89
2 1/22.87573.00.2035.165.798.625.828.6610006.8910006.89
33.50088.90.2165.497.5811.287.6211.3410006.8910006.89
3 124.00101.60.2265.749.1113.569.2013.6812008.2712008.27
44.500114.30.2376.0210.7916.0610.9016.2212008.2712008.27
55.563141.30.2586.5514.6221.7614.8122.04  BB12008.27
66.625168.30.2807.1118.9728.3419.1828.66  BB12008.27
88.625219.10.277C7.0424.7036.9025.5538.17  BB12008.27
1010.750273.00.277C7.8034.2451.1635.7553.41  BB10006.89

A Based on 20-ft (6.1-m) lengths.  B Fumace-welded pipe is not made in sizes larger than NPS 4. CNPS 1/2 through 6-Schedule 40; NPS 8 and 10-Schedule 30. 

TABLE 1 Chemical Requirements


Composition, max, %
CMnPS
Type E (electric-resistance-welded) & Type S(seamless pipe)
Open-hearth, electric-fumace or basic-oxygen:
Grade A0.250.950.0350.035
Grade B0.301.200.0350.035
Type F(furnace welded pipe)
Open-hearth, electric-fumace, or basic oxygen0.0500.045

TABLE 2 Dimesions, Weights, and Test Pressure For Light file Protection Pipe Schedule 10A


NPS DesignatorOutside DiameterNominal Wall ThicknessWeight Plain EndTest Pressures
Fumace-WeldedSeamless and Electric-Resistance Weld
in.mmin.mmlb/ftkg/mpsiMPapsiMPa
3/41.05026.70.08.2.110.861.285003.457004.83
11.31533.40.1092.771.402.15003.457004.83
1 1/41.66042.10.1092.771.812.725003.4510006.89
1 1/21.90048.30.1092.772.083.125003.4510006.89
22.37560.30.1092.772.643.965003.4510006.89
2 1/22.87573.00.1203.053.535.305003.4510006.89
33.50088.90.1203.054.336.505003.4510006.89
3 1/24.000101.60.1203.054.977.465003.4512008.27
44.500114.30.1203.055.618.365003.45 12008.27
55.563141.30.1343.407.7711.58BB12008.27
66.625168.30.1343.409.2913.84BB10006.89
88.625219.10.188C4.816.9425.41BB8005.51
1010.750273.00.188C4.821.2131.82BB7004.83

A Schedule 10 corresponds to Schedule 10S as listed in ANSI B36.19 for NPS 3/4 through 6 only. B Fumace-welded pipe is not amde in sizes larger than NPS 4.  CNOt Schedule 10.


TABLE3 Dimensions, Weight, Test Pressures For Standard-Weight Fire Protection Pipe Schedule 30 and Schedule 40

NPS DesignatorOutside DiameterNominal Wall ThicknessCWeight Plain EndWeight Thread And CouplingsATest Pressure
Fumace-WeldedSeamless and Electric-Resistance Weld
in.mmin.mmlb/ftkg/mlb/ftkg/mpsiMPapsiMPa
1/20.84021.30.1092.770.851.270.851.277004.837004.83
3/41.05026.70.1132.871.131.681.131.687004.837004.83
11.31533.40.1333.381.682.501.682.507004.837004.83
1 1/41.66042.10.1403.562.273.382.283.3810006.8910006.89
1 1/21.90048.30.1453.682.724.052.734.0610006.8910006.89
22.37560.30.1543.913.655.433.685.4810006.8910006.89
2 1/22.87573.00.2035.165.798.625.828.6610006.8910006.89
33.50088.90.2165.497.5811.287.6211.3410006.8910006.89
3 124.00101.60.2265.749.1113.569.2013.6812008.2712008.27
44.500114.30.2376.0210.7916.0610.9016.2212008.2712008.27
55.563141.30.2586.5514.6221.7614.8122.04  BB12008.27
66.625168.30.2807.1118.9728.3419.1828.66  BB12008.27
88.625219.10.277C7.0424.7036.9025.5538.17  BB12008.27
1010.750273.00.277C7.8034.2451.1635.7553.41  BB10006.89

A Based on 20-ft(6.1-m)lengths.  B Fumace-welded pipe is not made in sizes larger than NPS 4. CNPS 1/2 through 6-Schedule 40; NPS 8 and 10-Schedule 30

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