18h2n4ma - x19nicrmo4 - 1.6657 circle, bar, forging

Sheet, strip

International Equivalent

Mark Analogue W. Nr. Aisi Uns En Order
18X2H4MA 1.6657 x19nicrmo4 Delivery from the stock, in stock

Evek GmbH offers to buy volume rolled products - circles, bars - as well as forgings made of low-carbon alloy steels 18X2H4MA, X19NiCrMo4 and 1.6657. Supplier guarantees a cost-effective price from the manufacturer. Product delivery is carried out to any location specified by the customer.

Chemical composition

Structural steel 18Х2Н4МА is characterized by high content of molybdenum and nickel. It is produced in the CIS according to GOST 4543, and has the following chemical composition:

Element Carbon Silicon Manganese Chrome Nickel Molybdenum
Content in steel, % 0,14...0,20 0.17...0,37 0,25...0,55 1,55...1,65 4,0...4,4 0,30...0,40

The amount of non-metallic impurities in this steel - sulfur and phosphorus - is limited to 0.025...0.030%.

The closest European analogues of this steel are X19NiCrMo4 and 1.6657, which are produced in accordance with SAE-AISI 9310 and DIN 17210 specifications. The composition of these steels is somewhat different from 18Cr2NiCr4MA. For example, for steel 1.6657, it is as follows:

Element Carbon Silicon Manganese Chrome Nickel Molybdenum
Content in steel, % 0,11...0,17 Up to 0.40 0,30...0,60 0,80...1,15 3,0...3,5 0,10...0,25

The maximum sulphur and phosphorus content is limited to 0.035%.

Company Evek GmbH offers to buy a bar, a circle, forgings of alloyed structural steel 18Х2Н4МА, Х19NiCrMo4 and 1.6657. The price from the manufacturer. Supplier guarantees adherence to the range of supply and prompt transport of products to the location specified by the customer.

Properties and application

Forgings of the steel grades under review can be supplied in annealed or normalized condition. Initial physical and mechanical properties of the materials are as follows:

  • tensile strength, MPa - 820...910;
  • Ultimate ductility, MPa - 450...570;
  • Relative elongation, % - 17...19;
  • Rockwell hardness, HRB - 240...270;
  • Impact toughness, MJ/m3 - 120...130.

Due to the increased strength and impact toughness these steels are used in the manufacture of hull parts for ships, vehicles, aerospace equipment, railway tracks, pressure vessels , etc. Steels 18Cr2H4MA, X19NiCrMo4 and 1.6657 lend themselves well to hot forging.

Company Evek GmbH offers to buy a bar, a circle, forgings of alloy structural steel 18Х2Н4МА, Х19NiCrMo4 and 1.6657. Price - from the manufacturer. Supplier provides the necessary assortment minimum and guarantees product delivery to any point specified by the customer.