Lork Custom Uns S32304/ASTM A240 Duplex Steel Strip for Blast Walls on Offshore Platforms 2304 Stainless Steel Coil

• Customization: Available
• Type: Stainless Steel Coils
• Standard: ASTM, AISI, GB, JIS, DIN, EN
• Grade: Duplex Steel
• Certification: ISO, AISI, ASTM, GB
• Shape: Round
• Technique: Cold Rolled
• Surface Treatment: Pickling
• Key Words: 2304 Coil
• Thickness: 0.3mm-3.0mm
• Width: 1000mm - 2000mm
• Length: as Your Requirments
• Diameter Tolerance: H9, H11, H13, K9, K11, K13 etc
• Sample: Free-Sample
• Surface: Lack, Peeled, Polishing, Bright, Sand Blast, Hl
• MOQ: 100kgs
• Stock: in Stock
• Transport Package: Wooden Package
• Specification: 2304 coil
• Trademark: LORK
• Origin: China
• HS Code: 7219350000
• Production Capacity: 50000kg/Month

Product Description

Product Description

 

Introduction

2304 (UNS S32304) is a 23% chromium, 4% nickel, molybdenum-free duplex stainless steel. The Alloy 2304 has corrosion resistance properties similar to 316L. Furthermore, its mechanical properties, i.e., yield strength, are twice those of 304L/316L austenitic grades. This allows the designer to save weight, particularly for properly designed pressure vessel applications.

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 and low nickel and high chromium contents, the alloy has improved stress corrosion resistance properties compared to 304 and 316 austenitic grades.

Duplex Stainless 2304 Applications

▪ Bridges
▪ Storage tanks
▪ Water heaters
▪ Heat exchangers
▪ Pressure vessels
▪ Feedwater tubes
▪ Heat exchangers
▪ Flue-gas cleaning
▪ Seawater systems
▪ Desalination plants
▪ Parts for structural design
▪ Rotors, impellers and shafts
▪ Firewalls and blast walls on offshore platforms
▪ Cargo tanks and pipe systems in chemical tankers
▪ Piping and instrumentation tubing for general service


Duplex Stainless 2304 Chemical Composition

Element	Content (%)
Iron, Fe	72.679
Chromium, Cr	23
Nickel, Ni	4
Molybdenum, Mo	0.20
Nitrogen, N	0.1
Carbon, C	0.02
Sulfur, S	0.001

Duplex Stainless 2304 Mechanical Properties

Tensile Properties (Minimum Values)

°C	Rp 0.2MPa	Rp 1.0MPa	Rp 1.0MPa	°F	YS 0.2%Offset KSI	YS 0.1%Offset KSI	UTSKSI	Elongation%
20	400	440	600	68	58	64	87	25
100	330	365	570	212	48	53	83	25
200	280	310	530	392	41	45	77	20
300	230	260	490	572	33	38	71	20

Manufacturing Process

Machining of stainless steel grade Duplex 2304 is performed at low speeds, and constant feeds help to reduce its tendency to work harden. This material is tougher than grade 304 and 316 stainless steels due to its long stringy chip. Chip breakers are recommended. Unlike the 300 series stainless steel, Duplex 2304 steel requires more pressure while performing forming due to its higher yield strength. Its low ductility characteristic tends to make it difficult to perform forming operations.
Welding can be performed using most of the traditional methods such as gas-tungsten arc welding (GTAW), submerged arc welding (SAW), and gas-metal arc welding (GMAW). The filler metal should be a balanced of ferrite/ austenite type like 2205 or 2304.
Hot working can be done after heating the material to 954-1093°C (1750-2000°F), which is followed rapid cooling. Annealing after working is recommended. For annealing, the material is heated to 930-1050°C (1710-1920°F) and then rapidly quenched.

Available Sizes And Specifications

 

2304 stainless steel coil sizes and specifications
Grade	2304
Cold rolled stainless steel coil	Thickness: 0.3mm- 3.0mm, Width: 1000mm - 2000mm,Surface: 2B/BA/SB/8K/HL/1D/2D etc
Hot rolled stainless steel coil	Thickness: 3.0mm - 16mm, Width: 1000mm - 2000mm Surface: No.1/pickling
Standard	ASTM A240/A480, ASTM B688, ASTM B463/SB463, ASTM B168/SB168, ASTM B443/SB443/B424/SB424B625/SB625 B575/SB575, JIS G4303,   BS 1449, DN17441, G4305

 

Surface Treatment

 

Detection

Processing

 

Packaging & Shipping

Company Profile

FAQ

Q1: Do you accept the trial order ?
A1: Yes,if we have the exactly size in stock.we can delivery even 1 piece/meter .

Q2: Can I have free sample before making orders?

A2: Yes,we can supply free sample as requirement,but buyer needs to pay the freight charges ,the freight fee will return to buyer after making order.

Q3: How do you control the quality ?
A3: MTC and PMI will be sent before shipment,any 3rd party inspection if need .

Q4: How about your delivery time ?
A4: Generally delivery time is 15 working days .

Q5: How can I quickly get the price list ?
A5: Directly click "chat now" or send us email with detail specifications,you will get the official price list in 1 hour .