Materials

For manufacture of our medical and laboratory furniture we use the best materials - corrosion-proof hromnikelevuju steel of mark 12X18H10T, manufactures of Germany. In this section you can learn more about properties of this material and be convinced, that that our medical and labolratornaja the furniture actually is reliable and durable, and its surface is steady against action slaboagressivnyh and aggressive agents, high and low temperatures, a moisture.

Steel corrosium-proof (12X18H10T).

The characteristic of a material 12X18H10T.

Mark: 12X18H10T.        
Classification: steel corrosium-proof.           
Application: the details working up to 600 °C. Welded devices and the vessels working in diluted solutions of nitric, acetic, phosphoric acids, solutions of alkalis and salts and other details working under pressure at temperature from -196 up to +600 °C, and at presence of excited environments up to +350 °C.  

The international analogues

Europe (EN)	Germany (DIN)	USA (AISI)	Japan (JIS)	Russia (GOST)
1.4878	X12CrNiTi18-9	321 H	-	12Õ18Í10Ò

Chemical compound in % of a material 12X18H10T.

Silicon (Si)	0,8
Copper (Cu)	0,3
Manganese (Mn)	2,0
Nickel (Ni)	9-11
The titan (Ti)	0,6-0,8
Phosphorus (P)	0,035
Chrome (Cr)	17-19
Sulfur (S)	0,2

The rest - iron (Fe).

Mechanical properties

Mark	Way of processing	Limit of hardness		Relative		Heat resistance, °C
		HB or HV max	Rp 0.2, min N/mm2	Durability, Rm N/mm2	Lengthening, % min
12X18H10T	C (cold-roll steel) H (hot-roll steel)	192	210	500-750	30	850

Corrosium properties:

• Results of electrochemical researches in 1,0N a solution of a sulfuric acid (H₂SO₄).

Mark	φ st, mV	i corr, sm2 mkÀ	P, mm/year	φ pp, mV	∆φ pp, mV	i pp, mkA sm2	P pp, mm/year
12X18H10T	-280	0,15	0,002	220	240	0,34	0,004

• Results of electrochemical researches in 0,1N a solution of sulfate of sodium (Na₂SO₄).

Mark	φ st, mV	i corr, sm2 mkÀ	P, mm/year	φ pp, mV	∆φ pp, mV	i pp, mkA sm2	P pp, mm/year
12X18H10T	-280	0,38	0,005	60	240	0,77	0,009

The note: φ st - stationary potential; i corr - density of a current of corrosion; P - speed of corrosion at stationary potential; φ pp - potential of the beginning of full passivation; i pp - extent of area of a steady passive condition; i pp - density of a current of full passivation; P pp - speed of corrosion in the field of a passive condition.

Figure 1: dependence of corrosion stability on mechanical durability of materials.