Duplex Steel S32304

Product Item：HY009

Manufacturing: Cold Rolled/Cold Drawn

Type: Seamless

Surface: Annealed and Passivated

Application Fields: heat exchanger, boiler, evaporator

Description

Duplex Steel 2304 / UNS S32304 / Alloy 1.4362

Duplex 2304 is a 23% chromium, 4% nickel, molybdenum-free duplex stainless steel whose structure is a balance of ferritic and austenitic. It has general corrosion resistance similar or better than Alloys 304L and 316L but with yield strength nearly double that of austenitic stainless steels. Its duplex microstructure and low nickel and high chromium contents also allows Duplex 2304 to demonstrate improved stress corrosion resistant properties compared to 304 and 316. Duplex stainless steel tube is typically suitable for all applications in the -58oF to 572oF (-50oC to 300oC) temperature range and is designed to feature high mechanical strength, good weldability, good corrosion resistance, high resistance to stress corrosion cracking, good machinability, low thermal expansion, good fatigue properties, high thermal conductivity, and easy fabrication.

S32304 Chemical Composition

%	C	Mn	P	S	Si	Ni	Cr	Mo	N	Cu
Min						3.0	21.5	0.05	0.05	0.05
Max	0.03	2.50	0.04	0.04	1.00	5.5	24.5	0.60	0.2	0.6

S32304 Mechanical Properties

Size

Tensile Strength, min, (MPa)

Yield Strength, min, (MPa)

Elongation in 2 in. or 50mm, min, %

Hardness, max HRC

OD 1 in. (25mm) and Under

690

450

OD over 1 in. (25mm)

600

400

Main Standards:

ASTM A789 Standard Specification for Seamless and Welded Ferritic/Austenitic Stainless Steel Tubing for General Service

ASTM A790 Standard Specification for Seamless and Welded Ferritic/Austenitic Stainless Steel Pipe

ASTM A928 Standard Specification for Ferritic/Austenitic (Duplex) Stainless Steel Pipe Electric Fusion Welded with Addition of Filler Metal

PREN=Cr% + 3.3*Mo% + 16*N%

Applications and Uses of Duplex Stainless Steel

Chemical and Petrochemical Processing Industry

Oil and gas exploration and processing industry

Sea Water Desalination

Pharmaceutical

Petrochemical

Fertilizer

Advantages of Hengyang Piping

Regular Sizes in Stock

Welding to flanges and Threading services

Quick Delivery

NACE MR 0175 and NORSOK M-650 standards.

Material with guaranteed quality and traceability

Third party inspection

Hengyang Piping Equipment is the top supplier of Duplex Steel, Super Duplex Steel and Exotic Steel Piping products in China. We not only offer quality products with reasonable pricing, but also can assist through the various project stages. It includes quality control of materials, monitoring and guiding of mills, arrangement of documentation.