Standard: ASTM A192/A192M
This specification2 covers minimum-wall-thickness, seamless carbon steel boiler and superheater tubes for high-pressure service.
Application of ASTM A192 Carbon Seamless Steel Pipe:
Pipe ordered under this specification is For high pressure use: heat exchangers, condensers, heat transfer equipment, similar pipes and as superheater tubes for high pressure settings.
Manufacturing Process of ASTM A192 Carbon Seamless Steel Boiler tube:
ASTM A192 carbon seamless steel pipe/tube are produced either by cold-drawn or hot rolled, as specified.
Hot finished tubes need not be heat treated. Cold finished tubes shall be heat treated after the final cold-finishing at a temperature of 1200°F or higher.
Details of ASTM A192 Carbon Seamless Steel Tuber We can supply:
Manufacture: Seamless process ,cold drawn or hot rolled
Size: O.D.: 15.0～100mm W.T.: 2～25mm
Length: 6M or specified length as required.
Ends: Plain End, Beveled End.
Chemical Composition of ASTM A192 Carbon Seamless Steel Boiler tubes
Grade and Chemical Composition (％)
|The steel shall conform to the required chemical composition for carbon, manganese, phosphorus, sulfur, and silicon. The tubes shall have a hardness number not exceeding a specific value.|
Tolerance of OD and W.T(SA-450/SA-450M):
|OD In (mm)||+||-||WT In(mm)||+||-|
|The tubing sizes and thicknesses usually furnished to this specification are 1/2 in. to 7 in. [12.7 to 177.8 mm] outside diameter and 0.085 to 1.000 in. [2.2 to 25.4 mm], inclusive, in minimum wall thickness. Tubing having other dimensions may be furnished, provided such tubes comply with all other requirements of this specification.|
The following mechanical tests shall be conducted, namely:
Mechanical property requirements do not apply to tubing smaller than 1/8 in. [3.2 mm] inside diameter or 0.015 in. [0.4 mm] thickness.
|Brinell Hardness Number WT≥0.200In（5.1mm）||Rockwell Hardness Number WT ≥ 0.200In（5.1mm）|
a. Quantity ( feet, meters, or number of lengths)
b. Name of material(seamless carbon steel tubes)
d. Manufacture (hot finished or cold finished)
e. Size(outside diameter and minimum wall thickness)
f. Length (specific or random)
g. Test report required
h. Special requirements.
Appearance for ASTM A192 Carbon Seamless Steel Boiler Tubes:
A sufficient number of visual surface imperfections to provide seasonable assurance that they have been properly evaluated with respect to depth. The defect shall be removed or cut off within the limits of requirements on length. The finished pipe shall be reasonably straight.
Packing for ASTM A192 Carbon Seamless Steel Boiler Tubes:
a. Bare pipe or Black / Varnish coating ( customized);
b. In bundles with two cotton slings;
c. Both ends with end protectors;
d. Plain end, bevel end(2" and above with bevel ends, degree: 30~35°) .