UNS N08926 Stainless Steel Round Bar
UNS N08926 Stainless Steel Round Bar

Item specifics

Delivery condition
annealed
Surface condition
Black, Machined

Review

Description

1.4529, N08926, Alloy 926, Stainless Steel

 

The austenitic stainless steel 1.4529 was developed on basis of Alloy 904l / 1.4539. However, the molybdenum content at 1.4529 was raised to 6.5%. 1.4529 has excellent general corrosion resistance and improved resistance to pitting and crevice corrosion. The resistance to stress corrosion cracking is also increased. It is often referred as super austenitic stainless steel.

 

Characteristics

1.4529 is characterized by:

  increased resistance to stress corrosion cracking compared to other austenitic stainless steels

  excellent general corrosion resistance in use of oxidizing as well as reducing media

  less tendency to form intermetallic phases compared to similar steels with only 18% nickel content

  very good resistance at pitting and crevice corrosion

  Approval for pressure vessels with temperatures between -196 and 400

  Building construction approval for components and fasteners made of stainless steel

 

Grade

Werkstoffnummer

1.4529

Alloy

Alloy 926

 

Alloy 6XN

EN short name

X1 NiCrMoCuN25-20-7

UNS

UNS N08926

 

UNS N08367

Registered Tradenames

SixMo®

 

Ultra 6XN®

 

AL-6XN®

 

Cronifer 1925hMo®

Standards

EN 10028-7

 

EN 10088-2

VdTÜV Werkblatt

502

ASTM / ASME

ASTM A240/ B688/ B625

 

ASME SA24/ SB688/ SB625

 

Chemical Composition

 

C

Si

Mn

P

S

Cr

Mo

Cu

Ni

N

Min

-

-

-

-

-

19.50

6.00

0.85

24.50

0.12

Max

0.02

0.80

1.00

0.03

0.01

21.00

6.70

1.00

26.00

0.20

 

Main fields of application of alloy 926

1.4529 is mainly in following applications:

  Concentration and crystallization plants for salt production by evaporation

  Condenser pipes and pipeline systems in power plants with highly polluted cooling water

  Pump rods for oil delivery systems

  Evaporators, heat exchangers, tank linings etc. and phosphoric acid production

  Tanks for transport of aggressive chemical products

  Distribution systems and coolers for sulfuric acid plants

  Fire extinguishing systems, seawater filtration, hydraulic and injection systems of offshore technology

  Flexible pipes in the offshore industry

 

Hot forming

The material is hot formed within a temperature range of 1200 and 900 and afterwards quenched rapidly in water or air.

The annealing takes place at 1200 .

After hot forming, heat treatment for optimum corrosion resistance is recommended.

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