Seamless carbon steel pipe ASTM A192 specification parameter table

Seamless Carbon Steel Pipe ASTM A192 Specification Parameters

The ASTM A192 specification outlines seamless carbon steel boiler tubes designed for high-pressure applications. These pipes are typically used in high-pressure boilers, where the working pressure does not exceed 9.8 MPa and the operating temperature ranges between 450°C and 650°C. They serve as critical components such as heating surface pipes, headers, economizers, superheaters, and reheaters. CSC STEEL offers ASTM A192 seamless steel pipes in both hot-rolled and cold-drawn conditions to meet various industrial needs.

Chemical Composition of ASTM A192 Seamless Steel Tubes

ASTM A192 Carbon Steel Chemical Composition C Mn P≤ S≤ Si≤
0.06–0.18 0.27–0.63 0.035 0.035 0.25

Mechanical Properties of ASTM A192 Seamless Steel Tubes

Yield Strength (MPa) Tensile Strength (MPa) Elongation (%) Brinell Hardness Number (WT ≥ 0.200 in / 5.1 mm) Rockwell Hardness Number (WT 0.200 in / 5.1 mm)
≥180 ≥325 ≥35 137 HRB 77 HRB

Outside Diameter and Tolerance for ASTM A192 Seamless Steel Tubes

Hot Rolled Outside Diameter, mm Tolerance, mm
OD ≤ 101.6 +0.4 / -0.8
101.6 < OD ≤ 177.8 +0.4 / -1.2
Cold Drawn Outside Diameter, mm Tolerance, mm
OD < 25.4 ±0.10
25.4 ≤ OD ≤ 38.1 ±0.15
38.1 < OD < 50.8 ±0.20
50.8 ≤ OD < 63.5 ±0.25
63.5 ≤ OD < 76.2 ±0.30
76.2 ≤ OD ≤ 101.6 ±0.38
101.6 < OD ≤ 177.8 +0.38 / -0.64

Wall Thickness and Tolerance for ASTM A192 Seamless Steel Tubes

Hot Rolled Outside Diameter, mm Tolerance, %
OD ≤ 101.6, WT ≤ 2.4 +40 / -0
OD ≤ 101.6, 2.4 < WT ≤ 3.8 +35 / -0
OD ≤ 101.6, 3.8 < WT ≤ 4.6 +33 / -0
OD ≤ 101.6, WT > 4.6 +28 / -0
OD > 101.6, 2.4 < WT ≤ 3.8 +35 / -0
OD > 101.6, 3.8 < WT ≤ 4.6 +33 / -0
OD > 101.6, WT > 4.6 +28 / -0
Cold Drawn Outside Diameter, mm Tolerance, %
OD ≤ 38.1 +20 / -0
OD > 38.1 +22 / -0

Dimensions of ASTM A192 Seamless Steel Tubes

OD (mm) Wall Thickness (mm)
  2 2.5 3 3.5 4 4.5 5 6 6.5–7 7.5–8 8.5–9 9.5–10 11 12
Φ25–Φ28 ● ● ● ● ● ●                
Φ32   ● ● ● ● ● ●              
Φ34–Φ36   ● ● ● ● ● ●              
Φ38   ● ● ● ● ● ●              
Φ40     ● ● ● ● ●              
Φ42     ● ● ● ● ●              
Φ45     ● ● ● ● ● ●            
Φ48–Φ60     ● ● ● ● ● ● ●          
Φ63.5       ● ● ● ● ● ● ●        
Φ68–Φ73         ● ● ● ● ● ●        
Φ76         ● ● ● ● ● ● ● ● ● ●
Φ80         ● ● ● ● ● ● ● ● ● ●
Φ83         ● ● ● ● ● ● ● ● ● ●
Φ89         ● ● ● ● ● ● ● ● ● ●
Φ95         ● ● ● ● ● ● ● ● ● ●
Φ102         ● ● ● ● ● ● ● ● ● ●
Φ108         ● ● ● ● ● ● ● ● ● ●
Φ114           ● ● ● ● ● ● ● ● ●
Φ121           ● ● ● ● ● ● ● ● ●
Φ127           ● ● ● ● ● ● ● ● ●
Φ133           ● ● ● ● ● ● ● ● ●
Φ140             ● ● ● ● ● ● ● ●
Φ146             ● ● ● ● ● ● ● ●
Φ152             ● ● ● ● ● ● ● ●
Φ159             ● ● ● ● ● ● ● ●
Φ168             ● ● ● ● ● ● ● ●

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