Alloy Steel Seamless Pipes & Tubes

Product Applications


Chemical Composition & Mechanical Properties-ASTM
Specification Type Grade Chemical Composition (%) Mechanical Properties Hydrostatic Test Pressure Hardness (max.)
C Mn P S Si Cr Mo Cu Ni V Yield Strength Tensile Strength % Elongation
(G.L. 50 mm
WT 8 mm)
e (min.)
Min Max. Min Max. Max Max Min. Max Min. Max Min. Max Max Max Max Min. Min.
PSI MPa PSI MPa
ASTM S T-5 - 0.15 0.3 0.6 0.025 0.025 - 0.5 4 6 0.45 0.65 - - - 30,000 205 60,000 415 30 85 HRB (Max.)
A213 T-11 0.05 0.15 0.3 0.6 0.025 0.025 0.5 1 1 1.5 0.44 0.65 - - - 30,000 205 60,000 415 30 (P=32,000 t/D(inch)-pound unit
p=220.6 t/D)SI unit) 		163 HB / 170 HV (Max.)

85 HRB (Max.)

163 HB / 170 HV (Max.)
T-22 0.05 0.15 0.3 0.6 0.025 0.025 - 0.5 1.9 2.6 0.87 1.13 - - - 30,000 205 60,000 415 30 85 HRB (Max.)

163 HB / 170 HV (Max.)
ASTM S P-5 - 0.15 0.30 0.60 0.025 0.03 - 0.5 4 6 0.45 0.65 - - - 30,000 205 60,000 415 30 P = 2 S t/D
A335 P-11 0.05 0.2 0.30 0.60 0.025 0.03 0.5 1.0 1.0 1.50 0.44 0.65 - - - 30,000 205 60,000 415 30 S = 60% of SMYS
P-22 0.05 0.2 0.30 0.60 0.025 0.03 - 0.5 1.9 2.6 0.87 1.13 - - - 30,000 205 60,000 415 30
P - Hydrostatic Test Pressure (Bar); D - Specified Outside Diameter (mm);
T - Specified Wall Thickness (mm) A - Cross Sectional Area (inch / mm);
U - Specified Tensile Strength (PSI / MPa) E : ERW (Electric Resistance Welded) ; S - Seamless; SMYS - Specified Min. yield Strength.

Tolerance on Outside Diameter, Wall Thickess, Weight & Length of Pipe
SPEC. TYPE OUTSIDE DIAMETER WALL THICKNESS WEIGHT LENGTH
PIPE BODY PIPE ENDS (PLAIN END) Nominal AVG(min) Minimum Maximum
ft. Mtr ft. Mtr ft. Mtr ft. Mtr
ASTM Hot Finished Seamless Tubes N.A HFS Tubes HFS : + 16%, -0 Exact Length Tolkerance :
A-213 S 1" (25.4mm ) to 1-1/2" (38.1mm) Incl. : ± 0.15 mm N.A. Welded Tubes (for all sizes) :+ 18%, -0 Welded : +10%, - 0 Welded & C.F.S Tubes :
ASTM S 1/8" to 1-1/2" : ± 0.40 mm, N.A At any point : - 12.5% (max.) Single pipe NPS 12 & under : + 10%, - 3.5% Specified Length : + 6 mm, - 0
A-335 > 1-1/2" to 4" : ± 0.79 mm
> 4" to 8" incl. : +1.59 mm, - 0.79 mm
8" to 12" : + 2.38 mm, - 0.79 mm
Over 12" : ± 1.0% of OD