National standard spiral pipe material use

The national standard spiral steel pipe referred to as 9711.1 spiral steel pipe, 9711.2 spiral steel pipe, material classification: 16Mn spiral steel pipe, Q345B spiral steel pipe, L245 spiral steel pipe, L360 spiral steel pipe, X40-X80 spiral steel pipe, main use, spiral steel pipe for sewage treatment, water purification Spiral steel pipe, spiral steel pipe for water plant, spiral steel pipe steel pipe for power plant chemical industry, spiral steel pipe for nuclear power, spiral steel pipe for conveying flammable fluid, spiral steel pipe for conveying non-flammable fluid, national standard spiral steel pipe, oil part SY/T5037 spiral Steel Pipe. The product is made of hot-rolled steel strip as the raw material, often temperature spiral molding, automatic submerged arc welding process welding, product implementation API SPEC 5L, EN10217, GB/T9711.1, GB/T9711.2 standard. It is mainly used in the transportation of combustible fluids and non-flammable fluids and steel structures in the oil and gas industry.

Spiral steel pipe and various steel theoretical calculation formula

Steel calculation formula 1, round bar weight per m = 0.00617 × diameter × diameter

Spiral steel pipe Weight per meter = diameter - wall thickness * wall thickness * 0.02466

2. Square steel weight per m = 0.00786 × width × width

3, Hexagonal steel weight per m = 0.0068 × diameter of the opposite side × diameter of the opposite side

4, octagonal steel weight per mm = 0.0065 diameter diameter diameter

5, rebar weight per m = 0.00617 × diameter × diameter

6, equal angle steel per m weight = side width × side thickness × 0.015

7, flat steel per m weight = 0.00785 × thickness × width

8, seamless steel pipe per m weight = 0.02466 × wall thickness × (outer diameter - wall thickness)

9, Welded steel weight per m = seamless steel pipe

10, steel plate weight per m2 = 7.85 × thickness

11, brass tube: weight per meter = 0.02670 * wall thickness * (outer diameter - wall thickness)

12, copper tube: weight per meter = 0.02796 * wall thickness * (OD - wall thickness)

13, aluminum plate: weight per square meter = 2.96 * thickness

14. Non-ferrous metal specific gravity: copper plate 8.9 brass plate 8.5 zinc plate 7.2 lead plate 11.37

15. The formula for non-ferrous metal sheet is: weight per square meter = specific gravity * thickness

Square tube: Weight per meter = (side length + side length) × 2 × thickness × 0.00785

Unequal angle steel weight per meter = 0.00785 × edge thickness (long side width + short side width - side thickness)

I-beam weight per meter = 0.00785 × waist thickness [high +f (leg width - waist thickness)]

Channel weight per meter = 0.00785 × waist thickness [high + e (leg width - waist thickness)]