Wednesday, 28 December 2016

ASTM A618 II Seamless Square Hollow Tubes


ASTM A618 II seamless square hollow tubes manufacturer, RHS TUBE is able to produce ASTM A618 II seamless square hollow tubes and ASTM A618 II welded square hollow tubes with direct price. ASTM A618 II ASTM A618 II seamless square hollow tubes tensile test and bend test shall be performed for the materIIl to conform to the requirements specified. Welcome to inquiry. 
ASTM A618 II seamless square hollow tubes are high-strength low-alloy structural tubing. ASTM A618 standard covers grades of hot-formed welded and seamless high-strength low-alloy square, rectangular, round, or specIIl shape structural tubing for welded, riveted, or bolted construction of bridges and buildings and for general structural purposes. These grades are: Ia and Ib; Grade II; and Grade III. When ASTM A618 tubing is used in welded construction, the welding procedure shall be suitable for the steel and the intended service. 
ASTM A618  hot formed welded square tubes shall be made by the seamless, furnace-buttwelded (continuous-welded), or hot-stretch-reduced electric-resistance-welded process. If the results of the ASTM A618 II seamless square hollow tubes mechanical tests representing any heat do not conform to a requirement, retests shall be made.

ASTM A618 Hot Formed Welded Square and Rectangular Tubes Specification

Seamless square pipe:12*12*0.8mm-280*280*18mm
Welded rectangular pipe: 10*5*0.8mm-400*200*14mm
What are the advantages of ASTM A618 II ASTM A618 II seamless square hollow tubes in relation to the open sections?
- better static characteristics
- lighter construction (about 30% less weight)
- smaller surface (it is necessary to protect about 40% less surface area)
- less resistance to air and liquids
- usable interior space (concrete, cables, wires, pipes ...)
- better visual effect
King Steel Contact: 
Skype: kingsteels