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Sheet, strip alloy 1.4903

Sheet, strip alloy 1.4903

Supplier — AvekGlob company — offers at a reasonable price from the manufacturer a sheet and tape, which are made of alloy 1.4903. A timely delivery of metal products to any address specified by the customer is guaranteed.

Technical specifications

Alloy 1.4903 is a martensitic grade stainless steel, which is characterized by higher values of resistance to long-term strength — creep. The material is magnetic, and refers to high-alloy steels. The performance of products manufactured from 1.4903 alloy is guaranteed in a wide temperature range: from -10 to 760 0 C. This stainless steel is well suited for all technological modes of heat treatment, which allows to significantly change its main operational properties.

Urgency of application

The products, which are produced from the alloy 1.4903, are used in the manufacture of pressure vessels, boilers, heat exchangers, and other chemical equipment using high-temperature technological processes. The stainless steel in question is suitable for the manufacture of connecting (including welded) fittings, valves, nozzles for steam turbine installations, protective covers, pipeline protective housings, and other products operating at high temperatures and pressures.

Chemical composition

In accordance with the technical requirements of DIN EN 10088, DIN EN 10028 and DIN EN 10302, steel 1.4903 includes the following elements (numerical data — in percentages):

C Si Mn Ni P S Cr Mo V N Nb Al
0.08 — 0.12 Not more than 0.5 0.3 — 0.6 Not more than 0.4 Not more than 0.025 Not more than 0.015 8 — 9.5 0.85 — 1.05 0.18 — 0.25 0.03 — 0.07 0.06 — 0.1 Not more than 0.03

As agreed with the customer, 0.3% of copper and up to 0.1% of titanium are allowed in the steel composition. The DIN EN 10216−2014 standard further limits the percentage of silicon (0.2… 0.5%), phosphorus (up to 0.02%), sulfur (up to 0.005%) and aluminum (up to 0.02%).

Physical and mechanical properties:

Density, kg / m 3 — 7730;

Specific heat at room temperature, J / kggrad — 460;

Coefficient of thermal conductivity, W / megade — 26;

Modulus of elasticity, GPa — 218;

The coefficient of thermal expansion in the temperature range 20… 650 0 С, μm / deg — 12.7;

The limit of time resistance, MPa — 620… 850 (depending on the heat treatment mode);

Yield strength, MPa — 415… 450;

Relative elongation,% — 20;

Areas of application, technological features and assortment

The 1.4903 grade alloy is available in various rolling profiles, as well as in forgings. With increasing cross-sectional dimensions, the mechanical strength of the initial blanks is reduced. Weldability of the alloy — satisfactory, it is recommended the use of electric welding methods MIG or TIG with the use of tungsten non-consumable electrodes.

Supplier — AvekGlob Company — offers to buy sheet or tape made of 1.4903 alloy at the price formed on the basis of European and world standards of production. Buy these products can be wholesale and retail. For regular customers, there is a flexible system of discounts.