MAIN GROUPS OF THE STEELS RESISTANT TO CORROSION

RODZAJ STRUKTURY / TYPE OF STRUCTURE GŁÓWNY SKŁADNIK STOPU / MAIN COMPONENT OF ALLOY
Ferrytyczna / Ferritic Cr
Martenzytyczna / Martensitic Cr, C lub Ni
Austeniczna / Austenitic Cr, Ni, Mo
Austenityczno–Ferrytyczna / Ferritic-Austenitic (DUPLEX) Cr, Ni, Mo
wyższe zawartości Cr i niższe zawartości Ni niż w stalach austenitycznych / higher content of  Cr and lower content of Ni  than austenitic steels

STEEL GRADES

  PN-EN PN AISI / ASTM DIN
STAL NIERDZEWNA
STAINLESS STEEL
FERRYTY 1.4000 0H13 410S X6Cr13
1.4003 X2CrNi12
1.4016 H17 430 C6Cr17
1.4510 0H17T 430Ti
439
X3CrTi17
MARTENZYTY 1.4006 1H13 410 X12Cr13
1.4021 2H13 420 X20Cr13
1.4028 3H13 420F X30Cr13
1.4031 4H13 420 X39Cr13
1.4034 4H13 420 X46Cr13
1.4122 3H17M X39CrMo17-1
AUSTENITY 1.4301 0H18N9 304 X5CrNi18-10
1.4306 00H18N10 304L X2CrNi19-11
1.4307 (304L) X2CrNi18-9
1.4310 1H18N9 301 X10CrNi18-8
1.4311 304LN X2CrNiN18-10
1.4401 0H17N12M2T 316 X5CrNiMo17-12-2
1.4404 00H17N14M2 316L X2CrNiMo17-12-2
1.4429 316LN X2CrNiMoN17-13-3
1.4435 316L X2CrNiMo18-14-3
1.4539 0H22N24
M4TCu
904L
N 8904
X1NiCrMoCu25-20-5
1.4541 1H18N9T
1H18N10T
0H18N10T
321 X6CrNiTi18-10
1.4571 H17N13M2T
H18N10MT
316Ti X6CrNiMoTi17-12-2
DUPLEX 1.4362 S 32304 X2CrNiN23-4
1.4410 LH18N10M2 X2CrNiMoN25-7-4
1.4462 S 31803 X2CrNiMoN22-5-3
STAL ŻAROODPORNA
HEAT-RESISTANT STEEL
FERRYT 1.4724 H13JS X10CrAlSi13
1.4742 H18JS X10CrAlSi18
1.4762 H24JS (446) X10CrAlSi25
AUSTENITY 1.4828 H20N12S2 309 X15CrNiSi20-12
1.4841 H25N20S2 310
314
X15CrNiSi25-21
1.4843 H23N18 X16CrNi25-20
1.4845 310S X8CrNiSi25-21
1.4864 H16N36S2 330 X12NiCrSi35-16

STEEL PROPERTIES

The group of steels of special physical – chemical properties, resistant to corrosion caused by water, atmospheric factors, diluted acids, alkaline solutions. 

Steel stainlessness, acid resistance, and heat resistance is obtained by adding chromium and nickel as well as molybdenum in appropriate amount, and for heat resistance steels by adding aluminium, silicon and cerium. At present the steels resistant to corrosion are divided into two groups: stainless steels and heat-resistant steels.

Stainless steels comprise all the steels of high resistance to corrosion, except of the heat resistance ones. Stainless steels are used in the temperatures up to 5000 C. Numbering within the range from 1.40 … – 1.45 …

Heat resistant steels (including the creep resistant ones) show high corrosion resistance including that for oxidation (formation of scale) in the temperatures above 5000 C. Besides, creep resistant steels are required to maintain their mechanical properties on stable level under this conditions. Numbering within the range from 1.47 … – 1.48 …

The main properties of the steels referred to above are: resistance to corrosion in various environment conditions, resistance to high temperatures, low thermal expansion, rigidity, strength, durability, easy-machining and joining.

 
APPLICATION
 
Steel is used in the chemical industry, construction industry, architecture, and for interior fitments. It is also used in the food industry, brewing industry, automotive and transportation industry, power industry, paper-making industry, tool-making and medical industry, and also at the production of household articles.

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