- Country of manufactureRussia
Brand: 12X2H4A (substitutes: 20HGNR, 12HN2, 12HN3A, 20H2N4A, 20HGR) Type of delivery: long products, including shaped: GOST 4543-71, GOST 2590-2006, GOST 2591-2006, GOST 2879-2006. The calibrated bar: GOST 7417-75, GOST 8559-75, GOST 8560-78, GOST 1051-73. Polished bar and serebryanka: GOST 14955-77. Strip: GOST 103-2006. Forgings and the forged preparations: GOST 1133-71. Pipes: OST 14-21-77. Brand 12X2H4A belongs to chromonickel high-quality constructional steel. Has old designation EI 83 which is not used now. In certain cases steel is designated 12H2N4A-Sh. As substitutes can be used: 20HGNR, 12HN3A, 12HN2, 20H2N4A, 20HGR. Steel of brand 12X2H4A is used for production of the following products: rollers, shaft, cogwheels, piston fingers and the other large cemented responsible details which need high plasticity, durability, superficial hardness and viscosity of a core, working at negative temperatures to -120 °C and under the influence of shock loadings. Steel 12X2H4A as a percentage has the following chemical composition: Carbon (C) – 0,09-0,15; Si – 0,17–0,37; Cr – 1,25–1,65; Mn – 0,3–0,6; Sulfur (S) – less than 0,025; Phosphorus (P) – less than 0,025; Ni – 3,25–3,65; Cu – less than 0,3. Properties and useful information: Specific weight: 7840 kg/m3 Temperature of forging, °C: beginnings 1220, end 800. Sections to 100 mm are cooled on air, 101-300 mm in a hole. Heat treatment: Condition of delivery Hardness of material: HB 10-1 = 269 MPas Temperature of critical points: Ac1 = 745, Ac3(Acm) = 800, Ar3(Arcm) = 675, Ar1 = 625, Mn = 438 Workability cutting: HB 183-187, K υ TV. spl =1,26 and Kυ B. St of =0,96 Svarivayemost of material: restrictedly welded. Ways of welding: RDS, ADS under gumboil. Flokenochuvstvitelnost: it is sensitive. Tendency to holiday fragility: it is inclined. Svarivayemost: - without restrictions - welding is made without heating and without the subsequent heat treatment - restrictedly welded - welding is possible when heating to 100-120 hail. and - hardly welded - for receiving qualitative welded - connections additional operations are required for the subsequent heat treatment: heating to 200-300 hail. when welding, heat treatment after welding - to otzhigkupit the Circle 12X2H4A EI83 legko:1. You send zayavku2. We expose to you schet3. You pay convenient for you sposobom4. You receive the goods the Most important that you need to know about our company. • The delivered metal rolling constantly is available, and is stored "about 2000 tons" in a warehouse. • Own production of a professional flooring. • We offer a payment delay "about one month". • We do everything possible for minimization of terms of processing and delivery. • We carry out cutting of metal in the size and according to your drawings. • We provide service of responsible storage in the covered warehouse. • We offer the loyalty program allowing to receive discounts for purchase, processing or delivery of metal rolling. Advantages of work with nami:1. Goods available on sklade2. Official garantiya3. High quality tovarov4. Quick dostavka5. The program 12X2H4A EI83 you can specify the loyalnostiaktualny price of the Circle at our manager. The final price of production is formed, proceeding from terms of delivery: quantity, terms of payment and place of shipment. Ask the manager. This price list has exclusively information character and under no circumstances is not the public offer determined by provisions of Art. 447 of the Civil code of the Republic of Kazakhstan.