Sheet, strip, wire 20khm - 24CrMo5 - 1.7258 - 20hm
|Mark||Analogue||W. Nr.||Aisi Uns||En||Order|
|~~20ХМ||1.7258||24CrMo5||Delivery from the stock, in stock|
To buy rolled metal sheet, strip and wire which are made of alloy steels 20KHM, 24CrMo5, 1.7258, 20 hm the company offers Electrocentury-steel. The provider implements rental at the best price from the manufacturer, to ensure timely delivery of the products to the address specified by the customer.
Structural steel stamps 20KHM containing a higher percentage of chromium and molybdenum in Russia and CIS countries are produced accordingly to the technical norms of GOST 4543. The composition of the steel, the following:
|The percentage of steel||0,15…0,25||0,17…0,37||0,40…0,70||0,80 1,10…||0,15…0,25|
GOST limits the highest percentage of non-metallic impurities — sulfur and phosphorus: it cannot exceed 0,025%.
A number of well-known foreign analogues of steel 20 HM. In Europe, this steel 24CrMo5 (1.7258) and 20 hm. Last produced in Poland, and its composition and properties practically does not differ from steel 20KHM. Smelting steel 24CrMo5 (1.7258) is in accordance with European standards EN 10028−2 or DIN 17755. Steel are characterized by the following composition:
|The percentage of steel||0,20 0,28…||Not more than 0.40||0,50…0,80||0,90 1,20…||0,20…0,35||Not more than 0,60|
The restriction of non-metallic impurities — sulfur and phosphorus is 0.035% for each of the elements.
Buy sheet metal — sheet, strip and wire made from structural steel grades 20KHM, 24CrMo5, 1.7258, 20 hm with a high content of chromium and molybdenum, the company offers Electrocentury-steel. All products are sold at producer prices. Provider is guaranteed by strict observance of assortment supplies rental and its timely delivery point, which sets the customer.
Properties and applications
High percentage of molybdenum and chromium gives the steel 20KHM, 24CrMo5, 1.7258, 20 hm greater heat retention, which persists until the operational temperature of 380…4000 C. the Data are also characterized by high ductility, machinability and weldability. Materials have been successfully subjected to various types of heat treatment — hardening, annealing, release. Parts made of these steels are used in the manufacture of hulls of vessels working under pressure, and for production of heat-resistant fasteners.
Basic physico-mechanical parameters :
- Limit strength — 740 MPa;
- Yield strength is 440 MPa;
- Elongation — 14%;
- The relative narrowing of the profile to 50%.
- Impact strength, kJ/m2 — 750.
Buy a sheet, tape, wire steel with a high content of chromium and manganese 20KHM, 24CrMo5, 1.7258, 20 hm the company offers Electrocentury-steel. Price from the manufacturer. Supplier guarantees the fulfillment of product delivery ensured prompt delivery of the rental client.