Stainless steel and acid resistant steel - Austenite

Grade 1.4301 / 1.4307
Description Austenitic stainless chromium-nickel steel. Has good corrosion resistance, especially in natural environmental media and in the absence of significant chlorine and salt concentrations and welding work
Applications Slightly polluted water and waste water, food, and organic acids, generally resistant to pH 4.5 in low-chloride pleas. It also finds application in the chemical industry, petroleum industry and the petrochemical industry

Welding Heat treatment Chemical composition
Weldability Special measures Filler metals Hot forming in °C Cooling method Softening/quenching Type of cooling DIN AISI UNS Norm Material data sheet density C max. Cr Mo Ni Mn max. Ti N SI max. Miscellaneous
well none 1.4316 1150-750 air 1000-1080 ≤ 2 mm air, > 2 mm water X 5 CrNi 18-10 304 S30400 EN 10028-7 7.9 0.08 17,0-19,5 8,0-10,5 2 0.11 1 P 0,045; S0,015
Grade 1.4404
Description

Austenitic, non-corroding steel displays good acid resistance  

Applications

In chemical apparatus construction, sewage plants, paper industry, mainly with high chloride content

Welding Heat treatment Chemical composition
Weldability Special measures Filler metals Hot forming in °C Cooling method Softening/quenching Type of cooling DIN AISI UNS Norm Material data sheet density C max. Cr Mo Ni Mn max. Ti N SI max. Miscellaneous
well none 1.4430 1150-750 air 1020-1100 ≤ 2 mm air, > 2 mm water

X 2 CrNiMo 17.12.2

316L

S 31603

EN 10028-7

8 0.03

16,5-18,5

2,0-2,5

10,0-14,0

2 1
Grade 1.4529
Description

"Excellent general corrosion resistance to oxidizing and reducing media, good resistance to pitting and crevice corrosion and increased resistance to stress corrosion cracking compared with other austenitic stainless steels"     

Applications

Evaporators, heat exchangers, tank linings in phosphoric acid production, pipelines for the use of dilute sulphuric and phosphoric acid, coolers for sulphuric acid plants, seawater filtration, pump piping systems, condenser pipes and pipeline systems in power stations, parts for flue gas desulphurisation systems, tanks for the transport of aggressive chemical products

Welding Heat treatment Chemical composition
Weldability Special measures Filler metals Hot forming in °C Cooling method Softening/quenching Type of cooling DIN AISI UNS Norm Material data sheet density C max. Cr Mo Ni Mn max. Ti N SI max. Miscellaneous
well none

2.4621  u. 2.4831

1150-950 air 1100-1180 ≤ 2 mm air, > 2 mm water

X 1 NiCrMoCuN 25 20

alloy 926

N 08926

EN 10028-7

VdTÜV-WB 502

8.1

0.02

19,0-21,0

6,0-7,0

24,0-26,0

1

0,15-0,25

0.5

Cu 0,5-1,5

Grade 1.4539
Description

Excellent resistance to pitting, stress corrosion cracking and intercrystalline corrosion

Applications

Applications in seawater technology, offshore, the chemical industry, the paper industry, the cellulose industry

Welding Heat treatment Chemical composition
Weldability Special measures Filler metals Hot forming in °C Cooling method Softening/quenching Type of cooling DIN AISI UNS Norm Material data sheet density C max. Cr Mo Ni Mn max. Ti N SI max. Miscellaneous
well none

1.4539 u. 2.4653

1150-750 air 1080-1150 ≤ 2 mm air, > 2 mm water

X 1 NiCrMoCuN 25 20

904L

N 08904

EN 10028-7

VdTÜV-WB 421

8 0.02

19,0-21,0

4,0-5,0

24,0-26,0

2 0.15 0.7

Cu 1,0-2,0; P 0,03; S 0,01

Grade 1.4541 / 1.4878 
Description

"Austenitic, non-corroding steel, good resistance to organic acids such as lactic and acetic acids, good resistance to hydrogen sulphide and intercrystalline corrosion" 

Applications

Water and slightly polluted effluents, food and organic acids, generally resistant up to pH value 4.5 in low-chloride corrosive agents, use in the chemical industry, film and photography industry, in the building trade, superheater flues in steam power plants

Welding Heat treatment Chemical composition
Weldability Special measures Filler metals Hot forming in °C Cooling method Softening/quenching Type of cooling DIN AISI UNS Norm Material data sheet density C max. Cr Mo Ni Mn max. Ti N SI max. Miscellaneous
well none

1.4551 u. 1.4316

1150-750 air 1020-1100 ≤ 2 mm air, > 2 mm water

X 6 CrNiTi 18 10

321

S 32100

EN 10028-7

7.9 0.08

17,0-19,0

9,0-12,0

2

5 x % C till 0,7

0.05

Cu 2,5-4,0; S 0,015; P 0,045

Grade 1.4571
Description
Applications

Preferred option for use in chemical apparatus construction, sewage plants, paper industry, particularly in the case of high chloride content  

Welding Heat treatment Chemical composition
Weldability Special measures Filler metals Hot forming in °C Cooling method Softening/quenching Type of cooling DIN AISI UNS Norm Material data sheet density C max. Cr Mo Ni Mn max. Ti N SI max. Miscellaneous
well none

1.4576 u. 1.4430

1150-750 air 1020-1180 ≤ 2 mm air, > 2 mm water

X 6 CrNiMoTi 17 12 2

316Ti

S 31635

EN 10028-7

8 0.08

16,5-18,5

2,0-2,5

10,5-13,5

2

5 x % C till 0,7

1

P 0,045; S 0,015