Supplier — AvekGlob Company — offers at a reasonable price from the manufacturer a sheet, tape, pipe, made of brass LO70−1 (C44300, CuZn28Sn1As). The supplier guarantees the timely delivery of products to any address specified by the consumer.

Technical specifications

Brass mark LO70−1 (the nearest foreign analogues — alloys C44300 and CuZn28Sn1As) are referred to the so-called «admiralty» brass, used in marine business because of its high corrosion resistance in salt water and other chlorine-containing liquids. Characterized by increased resistance against erosion processes. The alloy is also often used for pipes of steam condensers cooled fresh, salty or brackish water. Pipes from Admiralty brass are also used for heat exchangers in oil refineries, where corrosion from sulfur compounds and contaminated water can be very intense. From the brass in question, water heaters and heat exchangers used in power plants are also produced.

Urgency of application

Brass of mark ЛО70−1 (С44300, CuZn28Sn1As) is used for manufacturing of working parts of condensers, evaporators of heat exchangers and installations for distillation and desalting of sea water. It is most often supplied in the annealing state.

Chemical composition

The composition of brass LO70−1 (C44300, CuZn28Sn1As) must comply with the technical requirements of GOST 15527−2004 (numerical data — in percent):

The brass of CuZn28Sn1As contains up to 0.06% of arsenic.

Physical and mechanical properties

• density, kg / m ³ — 8530;
• melting point, ⁰ С — 900… 940;
• coefficient of thermal expansion in the temperature range 20… 100 ⁰ С, μm / deg — 17;
• Specific heat, J / kggrad — 389;
• coefficient of thermal conductivity at room temperature, W / mgrad — 109;
• hardness in Brinell, HB — 55… 140 (respectively for soft and hard brass);
• allowable stress on compression, MPa — 310;
• yield strength, MPa — 105;
• modulus of elasticity, GPa — 110;
• permissible tensile elongation,% — not less than 40.

Assortment and application features

Brass sheets, tape and pipe from the material under consideration are produced in a wide range of cross-sectional dimensions. Foreign analogs are produced in a range that meets the requirements of DIN EN 1652, 12163 and 12166, the range of brass LO70−1 is determined by GOST 10666−90 and GOST 2060−2007.

Brass of mark ЛО70−1 (С44300, CuZn28Sn1As) is well suited to all operations of cold stamping. Hot stamping is carried out in the temperature range 650… 750 ⁰ С. The ability to weld (with the exception of electric welding under a layer of flux) and soldering is good, mechanical machinability is satisfactory.

Supplier — AvekGlob company — offers to purchase sheet, tape or pipe from brass LO70−1 (C44300, CuZn28Sn1As) in a wide assortment of sizes and profiles. Products can be bought at a price formed on the basis of European and world standards of production. Implementation is possible in bulk and retail, for regular customers, a flexible system of discounts operates.