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. Once we receive your inquiry, we will provide recommended pipe sizes and tailor the production process to meet your specific requirements. Please include a printout or sketch of the part you wish to manufacture, along with details on the grade, chemical composition, and surface condition. This ensures that the final product is perfectly suited for its intended use.

ASTM A192 seamless steel pipes are typically used as minimum wall thickness tubes in high-pressure boilers, superheaters, and related systems. These pipes are available from CSCsteel in both hot-rolled and cold-drawn conditions. They are commonly used in heating surfaces, headers, economizers, superheaters, and reheaters of high-pressure boilers operating at pressures up to 9.8 MPa and temperatures ranging from 450°C to 650°C.

We also offer a range of additional services such as custom pipe ends (flat, beveled, or threaded), coating options (epoxy, paint, 3LPE), and bending, all tailored to your specific needs.

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 ≥ 0.200 in / 5.1 mm) Rockwell Hardness Number (WT 0.200 in / 5.1 mm)
≥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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