What is spiral steel pipe? Introduction to spiral tube
Release time: October 23, 2019 Click: 621 Shandong FengChen iron and Steel Co., Ltd
Cross section appearance: Circular
The thickness is 18.104.22.1683.03.253.5mm
Nominal diameter: 48mm
Wall thickness: 2.5 / 2.75 / 3.0 / 3.25 / 3.5 (mm), etc
Materials: hot rolled steel, carbon structural steel or low alloy steel
(1) Requirements for seamless steel pipe material: the seamless steel pipe shall be Q235 ordinary steel pipe required in GB / t13793 or GB / t3091, and its model and specification shall be selected as Φ 48.3 × 3.6 mm (the plan shall be calculated according to Φ 48 × 3.0 mm). The raw materials shall be submitted with qualification certificate and project acceptance before being delivered for use.
(2) When the screw fastener enters the construction site, the product qualification certificate shall be checked, and the sampling retest shall be carried out. The technical characteristics shall meet the requirements of seamless steel pipe scaffold fastener. The appearance inspection of scaffold fastener shall be free of crack. When the tightening torque of anchor bolt exceeds 65N · m, it shall not be damaged.
(3) Make sure to carry out anti rust and anti-corrosion paint on two scaffolds.
(4) The model and specification of wood steel springboard is 3000 (6000) × 200 (250) × 50, and the two sides are bound with Φ 1.6mm galvanized steel strip; the welded mesh sheet steel pipe scaffold is made of hpb235 Φ 6 building reinforcement with a cross section of 40mm interval, and fixed on the small cross bar with Φ 1.6mm galvanized steel strip.
Spiral steel pipe is mainly used in engineering construction pipe fittings, construction support frame and safety protection support frame. Its function is also commonly used in the application of gas transmission pipeline, with the thickness of the pipeline qualified, compressive strength and cold drawing performance meet the requirements.
The key of the spiral tube is composed of a sports jacket, a beam core and a movable joint. Scaffold pipe is composed of pipe scaffold fastener and seamless steel pipe. The application of scaffold pipe and scaffold fastener constitutes seamless steel pipe scaffold. Scaffold pipe is the key component of seamless steel pipe of fastener type scaffold. It is usually 91 per high heel tube.