Variety of VAG materials
Materials for every valve
We select the material that is best suited to your needs from a large number of many materials. Our experts will advise you on the specific properties in relation to the intended area of application. Prior to that, learn about the advantages of cast iron, steel and stainless steel here.
Cast iron | |||
|---|---|---|---|
Material | Characteristics | Area of use | Advantages |
EN-GJL-250 (GG-25, ASTM A 48 40 B) | Iron-carbon cast alloy | Machine tool construction, machine beds, ship’s diesel engines, steam turbine housings, pumps | Good castability and machinability, thermal conductivity, corrosion protection, good damping and self-lubricating properties |
EN-GJS-400-15 (GGG-40, ASTM A 536 Gr. 60-40-18) | Iron-carbon-silicon cast alloy | Machine and valve construction, mining and shipbuilding, foundries, engine manufacturing, compressors and turbines | Good castability, impressive strength and toughness values, high breaking elongation and tensile strength |
EN-GJS-400-18-LT (GGG-40.3, ASTM A536 Gr. 60-40-18) | Iron-carbon-silicon cast alloy | Machine construction, mining and shipbuilding, foundries, engine manufacturing, compressors and turbines, at lower temperatures or higher pressure ratings | Good castability, impressive strength and toughness values, very high breaking elongation, impact bending strength and additional notched bar impact strength |
EN-GJS-500-7 (GGG-50,ASTM A 536 Gr. 65-45-12) | Iron-carbon-silicon cast alloy | Machine construction, mining and shipbuilding, foundries, engine manufacturing, compressors and turbines | Pronounced tensile strength |
Steel | |||
|---|---|---|---|
Material | Characteristics | Area of use | Advantages |
S 355 J 2 WP/S 355 J2 (ASTM A 242 Type 1/ASTM A 572 Gr. 50) | Structural steel with low carbon content | Steel and machine construction, industry, buildings, bridges, heavy-duty vehicles and cranes | Weather resistance, corrosion resistance, low sheet metal thickness, no pre-heating necessary, low seam volume |
P 250 GH (ASTM A 105/ASTM A 668 Kl. F/ASTM A 516 Gr. 60) | Forged steel with high carbon content, thermal post-treatment necessary | Manufacture of flanges, gas turbine blades and pressure vessels, steel construction, valve construction/power plant sector | High resistance to heat up to 480 °C, good weldability, high resistance to wear under mechanical stress, precision manufacturing, long durability |
S 235 JRG 2 (S 235 JR + AR/ASTM A283 Gr. C) | Welded steel | Steel construction, valve construction | Good weldability, high breaking strength |
H II/P 265 GH (ASTM A 516 Gr. 60) | Heat-resistant steel | Manufacture of gas turbine blades and pressure vessels, valve construction | Good weldability, long service life, pronounced resistance to heat |
Stainless Steel | |||
|---|---|---|---|
Material | Characteristics | Area of use | Advantages |
1.4308 (ASTM A 351 Gr. CF 8) | Chrome-nickel compound | Food, beverage and packaging industries, valve construction in aggressive media/environments, pumps, agitators | High resistance to corrosion, good polishability |
1.4462 (ASTM A 182 Gr. CF 51) | Duplex steel made of austenitic/ferrite mixture | Construction, crude oil, food and chemical industries, electronic equipment, machine construction and shipbuilding, offshore, valve construction, sea water use | High resistance to corrosion, high strength, pronounced resistance to aggressive media and sea water |
1.4571 (ASTM A 182 Gr. 316 Ti) | Austenitic stainless steel | Chemical industry, nuclear power, vacuum technology, submarine and furnace construction, valve construction | High resistance to corrosion, good weldability without thermal post-processing, high resistance to aggressive media |
1.4408 (ASTM A 351 Gr. CF 8 M) | Fully austenitic chrome-nickel-molybdenum cast steel | Chemical industry, valve construction, manufacture of pumps and machine components | High resistance to oxidation; resistant to aggressive media |