95X18 - ei229 sheet, strip

International Equivalent

Mark	Analogue	W. Nr.	Aisi Uns	En	Order
95Х18	EI229				Delivery from the stock, in stock

Production and Application

Stainless steel chrome 95X18 smelted in an open electric arc or induction furnaces. Production regulated GOST 5632−72; 4405−75 and 5949−75; as well as TS: 14−1-1848−75 and 14−1-4628−89. Bandpass Steel, manufactured by forging or rolling. Hot deformation is carried out at 1130−950 ° C, followed by holding at 750 ° C and cooling. Used in the manufacture of parts having high hardness: bushings, bearings, knives, etc…

The percentage of the soglvno 5732−72

Cplav	C	Ti	Ni	Mn	Si	Cr	N	S	P	Fe	Cu
95X18	0,9−1	≤0,2	≤0,6	≤0,8	≤0,9	17−19	---	≤0,025	≤0,03	The basis	≤0,3

Physical quality at 20 ° C.

Density 7.75 g / cm3, the thermal conductivity of 24.3 W / (m · K); specific heat of 0.483 · 103 J / (kg · K

Temperature coefficient of linear expansion and

steel grade	From 20 to 100	From 20 to 200	From 20 to 300	From 20 to 400	From 20 to 500	From 20 to 800
90H18MF	eleven	11.2	11.6	11.8	12.2	12.8
95X18	11.8	12.3	12.7	13.1	13.4	-

Resistance to corrosion

After quenching and low temperature tempering up to 400 ° C has a satisfactory resistance to corrosion in 3% NaCl solution and water. During tempering 480−500 ° C the corrosion resistance is lost due to precipitation of carbides.

alloy structure

Steel refers to the martensitic class. After complete annealing structure ledeburite steel with excess carbides. Microstructure of steel, hardened to 900−1250 ° C, comprises martensite, austenite and carbides.

The effect of quenching on the properties tº 90H18MF (numerator) and 95X18 (denominator)

tzak	The residual austenite γ,%	hardness HRC	The content of chromium (Cr) in solid solution,%	The austenite grain diameter, microns
900 ° C	<1	47	9.5	18
1000 ° C	-	55/55	-	16
1050 ° C	26/17	57/58	eleven	40
1100 ° C	— / 32	54/55	12.2	-
1150 ° C	76	40	-	35
1200 ° C	-	-	42	33
1250 ° C	93	26	16.4	63

Influence of annealing temperature on the properties 90H18MF (numerator) and 95X18 (denominator) (quenching process 1040 ° C)

totp, ° C	hardness HRC	The residual austenite γ,%	totp, ° C	hardness HRC	The residual austenite γ,%
140	57/56	17/15	670	33 / -	0 / -
300	52/51	12/12	750	27 / -	15/-
500	55 / -	-	900	60 / -	0 / -
600	40 / -	-	-	-	-

For 90H18MF, after hardening in oil from 1040 ° C (30 min), the critical points are: Ac1 = 840 ° C, Ac3 = 925 ° C; Mn = 260 ° C; MC = 135 ° C. Due to the stability of the austenite after hardening from 1250 ° C no phase transformations occur. Recommend quenching temperature of 1050 ° C and tempering 150−200 ° C. For a complete softening (~ 220 HB) is carried out annealing at 880−920 ° C with minimal cooling rate (25 ° C / hr). To improve the machinability in turning using annealing at 730−760 ° C. Not recommended tempering at 450 to 600 ° C and t ° quenching above 1065 ° C, which causes grain growth and decrease toughness.

Supply

Presented 95X18 rental brand certified. The technical documentation includes data on the chemical composition, the limiting percent impurities; mechanical properties of products. We can buy in bulk, any semi-finished products for large-scale productions. We also offer optimal conditions for retail customers. High level of service and efficiency of service are the face of our company.

Buy at the best price

In stock company «Elektrovek-steel» always available products from stainless steel alloys for the best price. It formed the basis of European rates on non-ferrous metals without including additional costs. We supply certified products of domestic and foreign manufacturers. Cooperation with us gives a number of advantages. Our experts will be happy to provide advice when buying any alloys, the correct choice of which will depend on the performance and durability of the equipment. We will help you determine not only the optimal parameters of the product, but also offer the best price.