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. Once we receive your inquiry, we will provide recommended pipe sizes and develop a detailed plan based on the part drawing or sketch you supply. We carefully consider grade, chemical composition, and surface condition to customize the production process and ensure the best possible performance for your application.

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

We also offer additional processing services such as beveled or flat ends, welding joints, and various coatings like epoxy, paint, or 3LPE. Custom bending and other modifications can be performed according to your specific requirements.

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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