Alloy 254smo® - 1.4547 tube

International Equivalent

Mark Analogue W. Nr. Aisi Uns En Order
1.4547 S31254 X1CrNiMoCuN20-18-7 Delivery from the stock, in stock

Technical characteristics

Stainless low carbon chrome-nickel steel. Specific gravity 8.03 g/cm3. The base of the steel is iron (Fe about 55%). Steel is additionally alloyed with molybdenum, manganese, silicon, copper. It has an excellent resistance to pitting and crevice corrosion in neutral and acid solutions.

Percentage composition

Fe С Si Mn P S Cr Ni Mo Cu N
basis ≤0,02 ≤0,7 ≤1 ≤0,03 ≤0,01 19,5-20,5 17,5-18,5 6-7 0,5-1,0 0,18-0,25

Mechanical properties (temperature 20°C)

sv - ultimate short-term strength: 650-850 MPa

sT - limit of proportionality (yield strength for the residual strain): 300 MPa

d5 - Tensile elongation at break: 30-35%

EN 10217-7 standard

Temperature, °C Tensile strength MPa
50 306
200 225
400 190
500 180

Cold working

Turning, milling, grinding, drilling. Good for welding

Heat Treatment

Normalizing, hardening, annealing, tempering.


GOST: X1CrNiMoCuN20-18-7; ASTM: A312 UNS S31254, A182 Grade F44, A403 Grade UNS S31254


Manufacturing of pipelines operating in corrosive environments at elevated temperatures. for oil and gas, chemical and pulp and paper industries. Manufacture of pressure vessels with operating temperatures of up to +400 °C.


We offer to buy alloy tubes 254smo®, 1.4547 from specialized warehouses of the supplier Evek GmbH with delivery in any city. Full compliance with international quality standards. The supplier Evek GmbH offers to buy tube of alloy 254smo®, 1.4547, the price - optimal in this segment of rolled products.

Buy, bargain price.

We offer tube of alloy 254smo®, 1.4547, price - determined by the technological features of production without including additional costs. It is possible to order products with non-standard parameters. We have the best price-quality ratio for the whole range of products. In the stainless steel segment Evek GmbH is a profitable supplier.