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Home> Precision Steel Tube> Seamless Torich Carbon Steel Boiler Tubes Cold Drawn
Product Details
Company Details
Product Specification
Seamless Carbon Steel Boiler Tubes Cold Drawn for Boiler Pipe
1.Scope
1.1 This specifification2 covers minimum-wall-thickness,seamless cold-drawn carbon steel tubes
including bending into the form of U-tubes, if specifified, for use in tubular feedwater heaters.
1.2 The tubing sizes covered shall be 5 ⁄8 to 11 ⁄4-in. [15.9 to 31.8-mm] outside diameter, inclusive,
with minimum wall thicknesses equal to or greater than 0.045 in. [1.1 mm]. 1.3 Optional supplementary
requirements are provided, and when desired, shall be stated in the order.
1.4 The values stated in either inch-pound units or SI units are to be regarded separately as the standard.
Within the text, the SI units are shown in brackets. The values stated in each system are not
exact equivalents; therefore, each system must be used independently of the other. Combining values .
from the two systems may result in nonconformance with the specififi- cation. The inch-pound units
shall apply unless the “M” designation of this specifification is specifified in the order.
2.Manufacture
(1)Manufacture—Tubes shall be made by the seamless process and shall be cold drawn.
(2 )Heat Treatment:
2.2.1 Cold-drawn tubes shall be heat treated after the fifinal cold-draw pass at a temperature
of 1200°F [640°C] or higher to ensure ductility satisfactory for rolling into tube sheets and to
meet mechanical properties as specifified.
2.2.2 If stress-relief anneal of the U-bends is specifified, the anneal shall consist of heating
the bent portion within a range of 1100 to 1200°F [585 to 640°C].
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Business Type:
Manufacturer,Distributor/Wholesaler,Importer,Exporter,Trading Company,Seller
Total Annual:
25000000-30000000
Employee Number:
100~200
Ecer Certification：
Verified Supplier
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Reach Us
TORICH INTERNATIONAL LIMITED Suite 1004, Hongan Plaza, #258 Die Yuan Road, Yinzhou District, Ningbo City, China https://www.precision-steeltube.com/
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