Manufacture of seamless cold-worked pipes for general use. Products
Seamless cold-deformed steel pipe GOST 8734-75. Pipes GOST 8734-75 are used in refrigeration equipment and construction industries.
Cold-worked pipes GOST 8734-75 are made of carbon and alloy steel.
The diameter of this GOST pipe can be from 5 mm to 140 mm. Differing cold-deformed pipe GOST and wall thickness. Distinguish between thin-walled, thick-walled and especially thick-walled pipes GOST 8734-75.
The maximum wall thickness can reach 12 mm and more. The length of GOST cold-worked pipes ranges from 1.5 to 11.5 m. The range of produced and supplied cold-worked pipes corresponds to GOST 8734-75.
Application
Small-diameter cold-rolled GOST pipes are often used for the manufacture of furniture and electric lighting fittings. Also pipe GOST 8734-75 for devices and machines, as well as in refrigeration equipment and construction industries.
Technical characteristics of seamless cold-worked pipes GOST 8734 75
Round shaped pipes – a series of classic rolled products. Such pipes are used in Ukraine to transport liquids (including liquefied gas), water vapor and gas suspensions.
As a rule, seamless cold-worked steel pipes GOST 8734 75 are made of standard carbon steel, which makes this series of rolled metal products cheaper.
You can find out the terms of order and prices of rolled metal products from the catalog of our products.
Assortment
- Thin-walled pipes – the range of outer diameters is from 6 to 89 (mm), the wall thickness can be 0.6-6 (mm);
- Thick-walled pipes – the range of outer diameters is from 6 up to 89 (mm), wall thickness can be 2-24 & nbsp; (mm);
If you need a seamless cold-deformed pipe GOST 8734 75, you can order the products you need and buy them directly from the metal-roll manufacturer.
Production of thin-walled pipes from carbon and alloy steels
Thin-walled pipe (furniture) is made of high-quality sheet metal and is necessary to facilitate and, as a result, reduce the cost of the manufactured product (steel structures).
A thin-walled pipe is used in the production of parts for upholstered and cabinet furniture, according to the type of execution it can be square, rectangular, oval and round.
Furniture pipes are used to make office, kitchen, bar stools, metal structures that do not bear heavy loads, such as racks, railings, bed frames, decorative details, guides. The wall thickness in this case is in the range from 0.8 mm to 2.0 mm of small diameters, the length is no more than 6 lm
The theoretical weight of furniture pipes is calculated by analogy with a longitudinal welded pipe.
Cutting, delivery
Furniture pipes are cut with a band saw and grinder to the size of the buyer or for transportation. The storage of thin-walled steel is carried out only in a covered storage room, it is not subject to corrosion in excellent condition.
We deliver pipes throughout Ukraine.
A well-calculated metal structure will help you to significantly save in the future the cost of purchasing material and increase the number of customers and, accordingly, orders.
We decided to buy a thin-walled pipe at the factory cost – call.
Types and grades of steel
Steel is an alloy of iron and carbon with other elements, the carbon content in it is not more than 2.14%.
The most general characteristic is & nbsp; by chemical composition & nbsp; steel is distinguished:
- carbon steel & nbsp; (Fe – iron, C – carbon, Mn
– manganese, Si – silicon, S – sulfur, P – phosphorus). In terms of carbon content, it is divided into low-carbon, medium-carbon and high-carbon. Carbon steel is designed for statically loaded tools.
By the method of production and the content of impurities & nbsp; steel differs:
- steel of ordinary quality & nbsp; (carbon less than 0.6%) – corresponds to GOST 14637, GOST 380-94. St0, St1, St2, St3, St4, St5, St6. The letters “St” denote steel of ordinary quality, the numbers indicate the marking number depending on the mechanical properties. It is the cheapest steel, but inferior in other qualities.
- high-quality steel & nbsp; (carbon or alloyed) – GOST 1577, the carbon content is indicated in hundredths of% – 08, 10, 25 , 40, in addition, the degree of deoxidation and the nature of solidification may be indicated. High-quality carbon steel has high ductility and increased weldability. Low-carbon high-quality structural steels are characterized by low strength and high ductility. Parts for cold stamping are made from sheet steel 08, 10, 08kp. Bolts, screws, nuts, axles, hooks, pins and other non-critical parts are made of steel 15, 20.
Medium-carbon high-quality steels (st 30, 35, 40, 45, 50, 55) are used after normalization and surface hardening for the manufacture of parts that have high strength and toughness of the core (axles, screws, bushings, etc. & nbsp; d .)
Steel 60 – Steel 85 has high strength, wear resistance, elastic properties. They are used to make crane wheels, rolling rolls, compressor valves, springs, springs, etc.
- high quality – complex chemical composition with low phosphorus and sulfur content – according to GOST 19281.