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  • YUHONG GROUP CO.,LIMITED

  •  [Zhejiang,China]
  • Business Type:Manufacturer , Service
  • Main Mark: Africa , Americas , Asia , Middle East , Oceania , Worldwide , East Europe , Europe , West Europe
  • Exporter:61% - 70%
  • Certs:GB, API, ASME, CE, GS, Test Report, TUV
  • Description:ASTM A789 S32304 Seamless Tube,ASME SA789 S32304 Duplex Steel Tube,SAF2304 Duplex Steel Tube
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YUHONG GROUP CO.,LIMITED

ASTM A789 S32304 Seamless Tube,ASME SA789 S32304 Duplex Steel Tube,SAF2304 Duplex Steel Tube

Home > Products > Heat Exchange Tube > Duplex Stainless Steel Heat Exchanger Tube > ASME SA789 UNS S32304 1.4362 Duplex Seamless Tube
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ASME SA789 UNS S32304 1.4362 Duplex Seamless Tube

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    Payment Type: L/C,T/T,Western Union
    Incoterm: FOB,CFR,CIF,EXW

Basic Info

Model No.: Super Duplex Tube

Usage: Pipeline Transport, Oil&Gas Well Drilling, Thermal Equipment, Mining

Technique: Cold Rolled

Material: Stainless Steel

Additional Info

Packaging: Ply-wooden Case /Iron Case/ Bundle with plastic Cap

Brand: YUHONG

Transportation: Ocean,Land,Air

Place of Origin: China

Certificate: ABS, GL, DNV, NK, PED, AD2000, GOST9941-81, CCS, ISO 9001-2008

Product Description

ASTM A789 / ASME SA789 UNS S32304 / 1.4362 / SAF2304 Duplex Steel Tube


ASTM A789 / ASME SA 789 Alloy 2304 UNS S32304 / SAF2304 is a 23% chromium, 4% Nickel, molybdenum-free duplex stainless steel.

The Alloy 2304

has corrosion resistance similar to 316L. Furthermore, its mechanical properties, yield strength, are twice those of 304L/316L austenitic grades.

This allows the designer to save weight, particularly for properly designed pressure vessel applications.
UNS S32304, is a lean duplex steel, similar to other duplex steels with it's high strength and resistance to chlorides stress corrosion cracking, however, due to its lower alloying content it has a lower level of pitting and crevice corrosion resistance (PREN approximately 26). As it contains very little Molybdenum, 2304 is a good economical alternative to 316L in some applications although 2304 is not recommended for use above 300°C. Also known by the the Uranus 35N and SAF2304.

The alloy is particularly suitable for applications covering the -50°C/+300°C (-58°F/572°F) temperature range. Lower temperatures may also be considered, but need some restrictions, particularly for welded structures. With its duplex microstructure, low nickel and high chromium contents, the alloy has improved stress corrosion resistance properties compared to 304 and 316 austenitic grades.
With its duplex microstructure and low nickel and high chromium contents, the alloy has improved stress corrosion resistance properties compared to 304 and 316 austenitic grades. Alloy 2304 duplex stainless steel successfully passes most of the standard IC test procedures such as ASTM, A262E, and C tests. Its corrosion rate in boiling nitric acid (65%) is higher than that of Alloy 316L. Due to its high yield strength, the alloy performs well in abrasion/corrosion applications.


Applications
Generally where 304 and 316L are used
Pulp and paper industry (chip storage tanks, white and black liquor tanks, digestors)
Caustic solutions, organic acids (SCC resistance)
Food industry
Pressure vessels (weight savings)
Mining (abrasion/corrosion)


Standards
ASTM/ASME.......... A240 - UNS S32304
EURONORM...........1.4362 - X2 Cr Ni 23.4
AFNOR...................Z3 CN 23.04 Az
DIN.........................W. Nr 1.4362


Require Quotation, Please send message to : luis.bao@ steelseamlesspipe. com


Corrosion Resistance
General Corrosion
Because of its high chromium content (23%) the corrosion resistance properties of 2304 are almost equivalent to those of 316L.
Localized Corrosion Resistance
The 23% chromium and 0.1% nitrogen additions explain why 2304 duplex stainless steel behaves much better than Alloy 316L when considering pitting and crevice corrosion resistance.
Stress Corrosion Resistance

Stress corrosion resistance test results in chloride containing aqueous solutions ((8ppm 02) PH =7, >1000 h, applied stresses higher than the yield strength) show that Alloy 2304 outperforms Alloys 304L and 316L, due to its high chromium additions and low nickel contents.This is a typical feature of duplex stainless steels. Alloy 2205 performs still better than 2304 in similar conditions.

C Si Mn P S Cr Mo Ni N Cu
max. 0,03 max. 1,00 max. 2,00 max. 0,035 max. 0,015 22,00 - 24,00 0,10 - 0,60 3,50 - 5,50 0,05-0,20 0,10-0,60
C Si Mn P S Cr Mo Ni N Cu
max. 0,03 max. 1,00 max. 250 max. 0,040 max. 0,040 21,50 - 24,50 0,50 - 0,60 3,00 - 5,50 0,05-0,20 0,50-0,60

Product Information for Lean Duplex 2304 tubing and pipe

Sizes Standard Tolerances
Products OD Wall Lengths and/or coils Grades OD Wall Lengths
Heat Exchanger Tubes & Condenser Tubing

Specifications:ASTM A1789 and ASME SA789

0.5" (6 mm) to 12 " (323.85 mm)

Metric sizes available

0.020" (0.51 mm) to 1.312 " (33.325 mm) Cut lengths to Cutomer Required Lean Duplex 2304 - ±10% -
Physical Properties of Lean Duplex 2304 Alloys in the Annealed Condition at -20°F to +100°F
Tensile Strength Yield Strength
Alloy UNS Spec. MPa ksi MPa ksi Elongation in 2 in. (min.) % Grain Size Req. Max. Hardness Modulus of Elasticity (x106 psi) Mean Coefficient of Thermal Expansion (IN./IN./°F x 10-6) Thermal Condu
ctivity
(BTU-in/ ft2-h-°F)
Lean Duplex 2304 OD=1" & under S32304 A789, A790 690 100* 450 65* 25 - 27.5 7.6 180
Lean Duplex 2304 OD>1" S32304 A789, A790 600 87 400 58* 25 - 290 HBW, 30 HRC 27.5 7.6 180

*OD over 1.0"Tensile Strength >c87, Yiled Strength > 58, no hardness requirement 1.0" OD and under


The Normal Dimension for Heat Exchangers and Condensers as below

Size: 1/4″ × 0.035″
ASTM A789 ASME SA 789 S32304 Stainless Steel Tubing Tubes

Size:3/8″ × 0.035″
ASTM A789 ASME SA 789 S32304 Stainless Steel Tubing Tubes

Size:1/2″ × 0.035″
ASTM A789 ASME SA 789 S32304 Stainless Steel Tubing Tubes

Size: 5/8″ × 0.035″
ASTM A789 ASME SA 789 S32304 Stainless Steel Tubing Tubes

Size: 3/4″ × 0.035″
ASTM A789 ASME SA 789 S32304 Stainless Steel Tubing Tubes

Size: 1″ × 0.035″
ASTM A789 ASME SA 789 S32304 Stainless Steel Tubing Tubes

Size: 5/16″ × 0.035″
ASTM A789 ASME SA 789 S32304 Stainless Steel Tubing Tubes

Size: 1/4″ × 0.049″
ASTM A789 ASME SA 789 S32304 Stainless Steel Tubing Tubes

Size: 3/8″ × 0.049″
ASTM A789 ASME SA 789 S32304 Stainless Steel Tubing Tubes

Size: 1/2″ × 0.049″
ASTM A789 ASME SA 789 S32304 Stainless Steel Tubing Tubes

Size: 5/8″ × 0.049″
ASTM A789 ASME SA 789 S32304 Stainless Steel Tubing Tubes

Size: 3/4″ × 0.049″
ASTM A789 ASME SA 789 S32304 Stainless Steel Tubing Tubes

Size:1″ × 0.049″
ASTM A789 ASME SA 789 S32304 Stainless Steel Tubing Tubes

Size: 1/4″ × 0.065″
ASTM A789 ASME SA 789 S32304 Stainless Steel Tubing Tubes

Size: 3/8″ × 0.065″
ASTM A789 ASME SA 789 S32304 Stainless Steel Tubing Tubes

Size: 1/2″ × 0.065″
ASTM A789 ASME SA 789 S32304 Stainless Steel Tubing Tubes

Size: 5/8″ × 0.065″
ASTM A789 ASME SA 789 S32304 Stainless Steel Tubing Tubes

Size: 3/4″ × 0.065″
ASTM A789 ASME SA 789 S32304 Stainless Steel Tubing Tubes

Size: 1″ × 0.065″
ASTM A789 ASME SA 789 S32304 Stainless Steel Tubing Tubes

Size: 1″ × 0.120″
ASTM A789 ASME SA 789 S32304 Stainless Steel Tubing Tubes

Looking for ideal ASTM A789 S32304 Seamless Tube Manufacturer & supplier ? We have a wide selection at great prices to help you get creative. All the ASME SA789 S32304 Duplex Steel Tube are quality guaranteed. We are China Origin Factory of SAF2304 Duplex Steel Tube. If you have any question, please feel free to contact us.

Product Categories : Heat Exchange Tube > Duplex Stainless Steel Heat Exchanger Tube

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