ASTM A192 Seamless Carbon Steel Pipe Specification

ASTM A192 Seamless Carbon Steel Pipe Specification

ASTM A192 Seamless Carbon Steel Pipe Specification

The ASTM A192 specification outlines seamless carbon steel boiler tubes designed for high-pressure applications. When you send us an inquiry, we will recommend suitable pipe sizes based on your requirements. To ensure accuracy, please include a printout or sketch of the part to be manufactured. We take into account factors such as grade, chemical composition, and surface condition, and tailor the production process to meet the specific needs of the end use.

ASTM A192 seamless steel pipes are commonly used as minimum wall thickness tubes in high-pressure boilers, superheaters, and other critical components. CSCsteel offers ASTM A192 pipes in both hot-rolled and cold-drawn conditions. These pipes are typically used in high-pressure steam boilers operating at pressures not exceeding 9.8 MPa and temperatures ranging from 450°C to 650°C. They are ideal for heating surfaces, headers, economizers, superheaters, and reheaters.

We also provide additional processing services such as pipe end preparations (flat, beveled, or threaded ends), coatings (epoxy, paint, or 3LPE), and bending, all customized to meet customer specifications.

Chemical Composition of ASTM A192 Seamless Steel Tube:

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 Tube:

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

Outside Diameter and Tolerance for ASTM A192 Seamless Steel Tube:

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 Tube:

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 Tube:

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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