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Friday 28 February 2020
  • Duplex S32900 Stainless Steel Data Sheet
  • Duplex S32900 Stainless Steel Data Sheet
  • Duplex S32900 Stainless Steel Data Sheet
  • Duplex S32900 Stainless Steel Data Sheet
  • Duplex S32900 Stainless Steel Data Sheet
  • Duplex S32900 Stainless Steel Data Sheet
  • Duplex S32900 Stainless Steel Data Sheet
  • Duplex S32900 Stainless Steel Data Sheet

 

Alloy

UNS Number

SAE Number

SS 329

 UNS S32900

 

 

GENERAL PROPERTIES

329 is a stainless, acid resistant, duplex steel with improved machinability. Since the steel is machinability improved, it is suitable for production of details with comprehensive machining.

The steel has very good corrosion resistance particularly in chloride-bearing environments and is extra resistant to pitting corrosion, crevice corrosion, stress corrosion cracking and corrosion fatigue. It also has high strength and toughness.

 

RESISTANCE TO CORROSION

Duplex stainless steels are extremely corrosion resistant. They have high resistance to intergranular corrosion. Even in chloride and sulphide environments, duplex stainless steels exhibit very high resistance to stress corrosion cracking.

The super duplex grades are even more resistant to corrosion.

 

PHYSICAL PROPERTIES

Melting Point

Density

Specific Gravity

Modulus of Elasticity
in Tension

 1450 – 1510 ℃

  7.8g/cm3

7.8

200 GPa

 

MECHANICAL PROPERTIES

Alloy

Tensile Strength
Minimum
(psi)

Yield Strength
Minimum 0.2% offset

(psi)

% Elongation
in 2" Minimum

       

SS 329

10,500

79,800

25

 

CHEMICAL PROPERTIES

Alloy

C

Si

Mn

P

Cr

Ni

S

Fe

SS 329

0.08

0.75

1.0

0.04

23.0-28.0

2.5-5.0

0.03

Bal

 

WELDING

Successfully welded by common fusion and resistance methods, this alloy should not be joined by oxyacetylene welding.

AWS E/ER630 filler metal is recommended if required.

 

HEAT TREATMENT

CONDITION A--Soak at 1900 F (1038 C) for 30 minutes and cool below 60 F (16 C) for complete martensite transformation.

CONDITION H 950- Treat Condition A material at 900 F(482 C) for 1 hour, air cool.. CONDITION H925, H1025, H1075,

H1100, H1150- Soak solution treated material for 4 hours at specified temperature, air cool, CONDITION H1150M- Soak

solution treated material at 1400 F (760 C) for 2 hours, air cool, then re-heat to 1150 F (620 C) for 4 hours and air cool.

Contact Us

 

contact phoneT: + 44 (0)1902 409316
Fusion House
The Crescent
Willenhall
West Midlands
WV13 2QR

F: + 44 (0)1902 409304
E: sales@quest4alloys.com