Forging round 20XH3A

The structural Steel alloyed 20XH3A. Structural alloyed steel 20XH3A is produced according to GOST 4543-71. Steel in which along with normal impurity there are alloyed elements which are sharply improving it properties is called alloyed: chrome, tungsten, nickel, vanadium, molybdenum, etc., and also silicon and manganese in a large number. Impurity are entered in melting process. Quality and a type of supply of steel 20XH3A corresponds: Bar, including shaped: GOST 4543-71, GOST 2590-71, GOST 2591-71, GOST 2879-69. The calibrated bar of GOST 7417-75, GOST 8559-75, GOST 8560-78, GOST 1051-73. Polished bar and state standard specification 14955-77 silver steel. GOST 103-76 strip. Forgings and shod preparations of GOST 1133-71. Pipes OST 14-21-77. In the chemical composition steel 20XH3A contains chemical elements in %: silicon (Si) 0.17-0.37; copper (Cu), no more than 0.30; manganese (Mn) 0.30-0.60; nickel (Ni) 3.25-3.65; phosphorus (P), no more than 0.025; chrome (Cr) 1.25-1.65; sulfur (S), no more than 0.025. Use of alloy steel 20XH3A increases durability of products, saves metal, increases productivity, simplifies design and therefore in progressive equipment gains crucial importance. Physical, technology and mechanical properties of steel 20XH3A: Specific weight: 7850 kg/m3 Heat treatment: Tempering and issue Forging temperature, °C: beginnings 1200, end 800. Sections to 100 mm okhazhdatsya on air, 101-350 mm in a hole. Hardness of material: HB 10-1 = 269 MPas Temperature of critical points: Ac1 = 710, Ac3(Acm) = 800, Ar1 = 640 Workability cutting: after normalization and issue at HB 259 and σв =880 MPas, To υ TV. spl =0,72 and Kυ B. St =0,63 Bondability of material: hardly welded. Welding methods: RDS, ADS under gumboil, EShS. The heating and the subsequent heat treatment are necessary. Flokenochuvstvitelnost: Tendency to temper brittleness is sensitive: the malosklonn Alloy steel 20XH3A is widely applied in tractor and agricultural mechanical engineering, in automotive industry, basic and transport engineering industry to a lesser extent in machine-tool construction, tool and other types of the industry. Steel 20XH3A is applied to hard loaded metalwork. Use of steel 20XH3A in the industry: gear wheels, shaft, plugs, power pins, bolts, couplings, worms and other cemented parts to which requirements of high strength, plasticity and viscosity of a core and high surface hardness working under the influence of shock loads and at negative temperatures are imposed. Buy the Forging round 20XH3A 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 the BVB-alliance company. • Deliverable 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 metal cutting in the size and according to your drawings. • We provide service of safe custody 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. Operational dostavka5. The program round 20XH3A you can specify the loyalnostiaktualny price on the Forging at our manager. The final price of products forms, 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 the p. 2 of Art. 437 of the Civil code of the Russian Federation.

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