Pipe Matrial ASTM A 179 / A 179 M-90a
carbon steel According to ASTM Code

Seamless cold drawn low carbon steel heat-exchanger and condenser tubes.
1/8” (3.2 mm) to 3” (76.2 mm) included, in outside diameter.

CHEMICAL REQUIREMENTS

Carbon
%
Manganese
%
Phosphorus
maximum %
Sulfur
maximum %
     
0.06 to 0.180.27 to 0.630.0350.035

ROCKWELL HARDNESS 

not exceeding 72 HRB

TOLERANCES 

(see ASTM A 450 / A 450 M-96a)

Outside diameter< 1” (25.4 mm)± 0.004”± 0.10 mm
1” (25.4 mm≤) diamete≤r 1” 1/2 (38.1 mm)± 0.006”± 0.15 mm
1” 1/2 (38.1 mm) < diameter < 2” (50.8 mm)± 0.008”± 0.20 mm
2” (50.8 mm≤) diameter < 2” 1/2 (63.5 mm)± 0.010”± 0.25 mm
2” 1/2 (63.5 mm)≤diameter < 3” (76.2 mm)± 0.012”± 0.30 mm
3” (76.2 mm)± 0.015”± 0.38 mm
On thicknessFor diamete≤r 1” 1/2 (38.1 mm)+ 20 %
– 0
 
For diameter > 1” 1/2 (38.1 mm)+ 22 %
– 0
 
On lengthsFor diameter < 2” (50.8 mm)+ 1/8”
– 0
+ 3 mm
– 0
For diamete≥r 2” (50.8 mm)+ 3/16”
– 0
+ 5 mm
– 0
On weightFor diamete≤r 1” 1/2 (38.1 mm)+ 12 %
– 0
 
For diameter > 1” 1/2 (38.1 mm)+ 13 %
– 0
 

HYDROSTATIC TEST PRESSURE

(see ASTM A 450 / A 450 M-96a)

Given by the formula

\(P ={32000 * T\over D}\)

T : Specified wall thickness in mm
D : Specified outside diameter in mm
P : Hydrostatic test pressure in PSI

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