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Model No.: A178 Boiler tubes
Brand: Huijie
Standard: Astm
Material: St35-St52, Cr-Mo Alloy
Section Shape: Round, Rectangular, Oval, Square
Place Of Origin: China
Application: Fluid Pipe, Boiler Pipe, Hydraulic Pipe, Oil Pipe, Chemical Fertilizer Pipe, Structure Pipe
Certification: Api
Special Tube: Api Pipe, Thick Wall Pipe
Whether Alloy: Non-Alloy
Category: Welded Steel Pipe, Seamless Steel Pipe
Processing Service: Bending, Welding, Cutting
Steel Grade: Grade A;grade C/Grade D
Tubing Size Range: Od:6-120mm,Wt:1-10mm
Bending: Bending Tubing;u-Bending Tubes;u-Tubes
Steel Tube Length: 6000mm/12000mm/Max24000mm
Standard: Astm A178/Asme Sa178
Manufacturing Process: Erw Tubing/Welded Tubes
Packaging: Bundles Package, Wooden Box
Productivity: 3000 tons/month
Transportation: Ocean
Place of Origin: Zhejiang, China
Supply Ability: 3000 tons/month
Certificate: ISO9001-2008, TS16949
HS Code: 73043190
Port: Shanghai,Ningbo
Payment Type: T/T
Incoterm: FOB,CFR,CIF,FCA
ASME A178/A178M ELECTRIC-RESISTANCE WELDED BOILER TUBES/ERW ROUND BOILER TUBING/BENDING TUBES
1.This specification covers minimum-wallthickness,electric-resistance-Welded Tubes made of carbon
steel and carbon-manganese steel intended for use as boiler tubes, boiler flues, superheater flues, and
safe ends.
2.The tubing sizes and thicknesses usually furnished to this specification are 1⁄2 to 5 in. [12.7 to 127 mm]
in outside diameter and 0.035 to 0.320 in. [0.9 to 9.1mm], inclusive, in minimum wall thickness. Tubing
having other dimensions may be furnished, providedsuch tubes comply with all other requirements of this
specification.
3.Reference ASTM Standards:
A 226/A 226M Specification for Electric-Resistance-Welded Carbon Steel Boiler and Superheater Tubes
for High-Pressure Service
A 450/A 450M Specification for General Requirementsfor Carbon, Ferritic Alloy, and Austenitic Alloy Steel
Tubes
A 520 Specification for Supplementary Requirements for Seamless and Electric-Resistance-Welded Carbon
Steel Tubular Products for High-Temperature Service Conforming to ISO Recommendations for Boiler Construction.
E 213 Practice for Ultrasonic Examination of Metal Pipe and Tubing
E 273 Practice for Ultrasonic Examination of Longitudinal Welded Pipe and Tubing
A 450/A450M Test report required (Certification Section of Specification A 450/A 450M)
4.The steel for Grade D shall be killed.
5.Tubes shall be made by electric-resistance welding tubes/ERW tubing
6.The ERW metal tubes including steel grade A.C,D
7.After welding, all tubes shall be heat treated at a temperature of 1650°F [900°C] or higher and followed
by cooling in air or in the cooling chamber of a controlled-atmosphere furnace. Cold-drawn tubes shall
be heat treated after the final cold-draw pass at a temperature of 1200° [650°C] or higher.
8.Steel round tubing/ERW tubes Including Grade(A.C.D) Chemical Requirements:
Element of Steel Tubes | Grade A low-Carbon Steel | Grade C Medium-Carbon Steel | Grade D Carbon-Manganese Steel |
Carbon | 0.06-0.18 | 0.035 max | 0.27 max |
Manganese | 0.27-0.63 | 0.80 max | 1.00-1.50 |
Phosphorus, max | 0.035 | 0.035 | 0.030 |
Sulfur, max | 0.035 | 0.035 | 0.015 |
Silicon | ... | ... | 0.10 min |
Grade C | Grade D | |
Tensile Strength, min, ksi [MPa] | 60 [415] | 70 [485] |
Yield Strength, min, ksi [MPa] | 37 [255] | 40 [275] |
Elongation in 2 in. or 50mm, min, % | 30 | 30 |
Tags:SA178 welded tubes,,air heater tubes,Electric resistance tubes,heater tubes;Welded Pipes;Welded tubing; A178/A178M;
boiler tube; resistance welded steel tube; Carbon steel tube; welded steel tube
Product Categories : High Pressure Boiler Steel Tubes
Home > Products > High Pressure Boiler Steel Tubes > ASTM A178 ERW Boiler Steel Bending Tubes
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Mr. Kevin
Tel:86-0574-87491308
Fax:86-0574-87491848
Mobile Phone:+8613355844917
Email:sales@hjbearingtube.com
Address:Industrial Park, Zhangting Town,Yuyao City, Ningbo, Zhejiang
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