GOST 493 79. Bronze without tin foundry mark
The company Electrovek-Steel offers information on tinless bronze foundries, which are produced in accordance with GOST 493−79. Products are sold at economically favorable prices from the manufacturer. The supplier guarantees prompt delivery of bronze casting alloys to the point set by the customer.
GOST 493−97 applies to the following varieties of tinless bronze alloys:
- Containing manganese and aluminum;
- Containing iron and aluminum;
- Containing manganese and iron;
- Additional containing nickel;
- Lead-free bronze;
- Siliceous bronzes.
As permissible metallurgical impurities, arsenic, antimony, and zinc can be present in the composition of the alloys under consideration. Their total content in the finished product should not exceed 1.8… 2.0%. In alloys, traces of bismuth and carbon are allowed.
The main technological method for obtaining tinless bronze alloys is casting into chill molds or sand molds.
The company Electrovek-Steel sells at affordable prices from the manufacturer tinless bronzes, the characteristics of which are determined by the requirements of GOST 493−97. The supplier ensures timely delivery of products to the address set by the client.
Properties and applications
The bronze alloys, which are part of the nomenclature of GOST 493−97, are widely used in the production of antifriction products that work in liquid and vapor-like working media at temperatures not exceeding 240… 260 0 С. In particular, from the bronzes in question, articles of sanitary fittings, Details of friction units in chemical devices and food industry.
The main mechanical characteristics of these bronze alloys are:
The limit of temporary resistance, MPa — 400… 600 (with the exception of lead bronze, for which this parameter is 58… 60 MPa);
Relative elongation,% — 10… 20 (with the exception of multicomponent bronzes containing antimony, for which this parameter is 2… 3%);
Hardness according to Brinell, HB — 650… 2500 (for leaded bronzes — not more than 250).
Buy tinless bronze, obtained in accordance with GOST 493−97, offers the company Elektrovek-steel. Products are sold at favorable prices from the manufacturer, and delivered in a timely manner by the supplier directly to the address specified by the customer.