China ASTM A192 High Quality Seamless Steel Tube

• Customization: Available
• After-sales Service: Technical/Sample/Quality
• Type: Seamless/Welded
• Model NO.: ASTM A192
• Material: Carbon/Alloy/Stainless
• Surface Treatment: Black&Varnish Coating&3lpe&PE
• Usage: Boiler Pipe
• Section Shape: Round
• Transport Package: as Required
• Specification: 10-850mm
• Trademark: SHUNFU
• Origin: China
• HS Code: 7304193000
• Production Capacity: 30000tons/Year

Product Description

ASTM A192 Seamless Carbon Steel Boiler Tubes for High Pressure Service

seamless carbon steel boiler and superheater tubes for high pressure service.  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.
 

ASTM A192 Boiler Tubes Manufacture

Tubes shall be made by the seamless process and shall be either hot-finished or cold-finished, as specified.
 

ASTM A192 Boiler Tubes Heat Treatment

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 [650°C] or higher.
 

ASTM A192 Boiler Tubes Chemical Composition

The steel shall conform to the following requirements as to chemical composition:
Carbon, % 0.06-0.18
Manganese, % 0.27-0.63
Phosphorus, max, % 0.035
Sulfur, max, % 0.035
Silicon, max, % 0.25
 

ASTM A192 Boiler Tubes Hardness Requirements

The tubes shall have a hardness number not exceeding the following:
Brinell Hardness Number (Tubes 0.200 in. [5.1 mm] and over in wall thickness)
137 HB
Rockwell Hardness Number (Tubes less than 0.200 in.  [5.1 mm] in wall thickness)
77 HRB
 

ASTM A192 Boiler Tubes Test and Inspection

Transverse Tension Test
Flattening Tests
Hydrostatic Test
Nondestructive Electric Test
Flattening Test
 

ASTM A192 Boiler Tubes Forming Operations

Tubes when inserted in the boiler shall stand expanding and beading without showing cracks or flaws. Superheater tubes when properly manipulated shall stand all forging, welding, and bending operations necessary for application without developing defects
 

ASTM A192 Boiler Tubes Ordering Information

Orders for material under this specification should include the following, as required, to describe the desired material adequately:
1 Quantity (feet, metres, or number of lengths),
2 Name of material (seamless tubes),
3 Manufacture (hot-finished or cold-finished),
4 Size (outside diameter and minimum wall thickness),
5 Length (specific or random),
6 Optional requirements
7 Test report required (see section on Certification of Specification A 450/A 450M),
8 Specification designation, and
9 Special requirements.