general scope

ASTM A479 S31254 (1.4547 / F44) is a super austenitic stainless steel which has excellent corrosion resistance. It has a number of uses in various applications including marine and offshore platform equipment, air pollution control systems and chemical processing.

TM Steels can provide all materials produved to bespoke customer requirements. We project manage your raw material or semi finished material requirements, including Sawing,  Heat Treatment, Testing, Rough Machining, Hardness Testing, Ultrasonic Examination and certification, including BS EN 10204 3.1 & BS EN 10204 3.1 Witness documentation packages. We use an approved list of European Mills, and can offer material with PED / REACH & ROHS approval & UKAS accredited Testing. Contact our sales team today if you would like to enquire about our F44 Stock Lines.

uses: heat exchangers, pharmaceutical equipment, desalination equipment, chemical processing, offshore platforms, pollution control systems, pumps, valves, chokes, pipework, flanges, manifolds.

CHEMICAL COMPOSITION

 

C

Si

Mn

P

S

Cr

Mo

Ni

W

Cu

Ni+(2*Mo)

PRE

Min

 - - - - - 19.50 6.00 17.50 - 0.50 30,00 42,0

Max

 0.013 0.020 1.00 0.030 0.010 20.50 6.50 18.50 - 1.00 32,00 45,0

MECHANICAL PROPERTIES

Tensile

Result

RP 0.2%

300 N/mm2 Min

RM

350-850 N/mm2

Elongation

35% (4d)

Reduction of area

50%

HBW10/3000

Max 260 BHN

 

SURFACE CONDITION                                             

Peeled

REDUCTION RATIO                                                      

4:1 Min

STRUCTURE                                                                   

Grain size will be ASTM 5 or finer.

ULTRASONIC EXAMINATION                                 

Ultrasonic examination available per ASTM A388/API6A Latest Edition or to bespoke customer specification.

product alias

ASTM A479     S31254    1.4547     F44