Nicrofer 6030® - 2.4642 - alloy 690 circle, wire, pipe
Company Avecglobal sells at a reasonable price from the manufacturer a pipe, circle or wire, which are made of nickel alloy Nicrofer 6030® (other names — 2.4642, Alloy 690). The supplier guarantees the timely dispatch of rental to any address specified by the consumer.
Composition and application
Nicrofer 6030® (2.4642, Alloy 690) belongs to the group of iron-chromium-nickel alloys, which have the highest percentage of chromium from all corrosion-resistant nickel alloys. A high chromium content also improves resistance in an atmosphere containing sulfur, as well as at high temperatures.
The alloy is used for the manufacture of structures operating under pressure and in oxidizing environments. In particular, the alloy Nicrofer 6030® (2.4642, Alloy 690) is resistant to mixtures of hot sulfuric, nitric and hydrofluoric acid, and also for relatively salts of these acids (both at normal and elevated temperatures).
This alloy also has excellent resistance to stress cracking, which is used in nuclear reactors, for the production of steam, separators and welds. Examples are associated gas heaters used in the production of nitric acid, as well as steam forming coils in solutions of nitric and hydrochloric acids used for etching stainless steels and processing nuclear fuel.
The chemical composition of the alloy, which meets the technical requirements of the standard UNS N06690, is presented in the table:
| Ni,% | Cr,% | Fe,% | Ti,% | Mn,% | Si,% | C,% | Cu,% | P,% | S,% | Impurities,% |
| Not less than 58 | 27−31 | 7−11 | Not more than 0.5 | Not more than 0.5 | Not more than 0.5 | Not more than 0.05 | Not more than 0.5 | Not more than 0.030 | Not more than 0.015 | Not more than 0.1 |
A circle, wire or pipe, manufactured from Nicrofer 6030® (2.4642, Alloy 690), is available from AvekGlob at economical prices from the manufacturer. The supplier provides prompt delivery of products to any point. installed by the client.
Properties
Basic physical characteristics of the alloy:
Density, kg / m 3 — 8200;
Melting point, 0 С — 1340… 1377;
Specific heat capacity, J / kggrad — 470;
Coefficient of thermal conductivity, W / m degree — 14;
Modulus of elasticity, GPa — 200;
Coefficient of thermal expansion, mkm / degree — 14.
Basic mechanical characteristics of the alloy:
The limit of time resistance, MPa — 640… 990 (depending on the heat treatment mode);
Yield strength, MPa — 250… 760 (depending on the heat treatment mode);
Relative elongation at stretching,% — 5… 34 (depending on the heat treatment regime);
Hardness in Brinell, HB, not more than — 90.
Company AvecGlob offers to purchase at affordable prices from manufacturers a circle, wire or pipe, which are made of Nicrofer 6030® alloy (2.4642, Alloy 690). The supplier makes immediate delivery of rolled metal to any point agreed by the customer.