Wuxi Zhongxin Special Steel Co.，Ltd
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Stainless Steel 204CU is a chromium-magnesium austenitic stainless steel with an addition of 2-4% copper and nitrogen of 0.05-0.25%. Due to the addition of copper the alloy has better formability than 201 and 304. The copper improves corrosion and resistance to stress corrosion cracking in certain media. 204CU bridges the cost-property gap between 200 and 300 series stainless. Alloy 204CU is slightly after cold working but can be minimized.
J204Cu is a chrome-manganese stainless steel belonging to 200 series of austenite stainless steel family with moderate amounts of nickel, copper and nitrogen. J204Cu is a new alloy that bridges the cost / property gap between 200 and 300 series stainless steel. It has better formability than J201 and 304 due to Cu addition which lowered the work hardening rate to provide cold working properties superior to 200 series stainless steel and similar to type 304. Copper improves corrosion resistance and stress corrosion cracking resistance in certain media. Nitrogen increases strength and pitting resistance of stainless steel. Manganese as austenite former replaces a part of nickel and has beneficial effect on weldability. Consequently J204Cu has a higher annealed strength, similar corrosion resistance in a variety of mild corrosive media and similar formability & weldability in comparison with 304. It can replace Type 304 in numerous applications where higher strength, high formability and lower cost are required.
Coil , Sheet, plate , Strip, pipe ,tube ,bar ,profiles
DIN 1.4597
DIN X8CrMnCuN17-8-3
SAE 204Cu
EN X8CrMnCuN17-8-3
EN 1.4597
UNS S20430
AISI 204CU
| Width | Thickness | Inner Diameter | Steel Grade | Surface Finish |
| 610~2030 mm | 0.15~3.0 mm | 610 or 508 +0/-5 mm | 201; 254 SMO; 301; 301 AL; 301Si; 302; 303; 303 SE; 304; 304 L; 304 LV; 304 V; 3049; 305;30512; 308; 309; 309 S; 309 SCB; 310; 310 S; 316; 316 L; 316 LN; 316 Ti; 317; 317 L; 321; 330; 347; 384; 405; 409; 410; 410 S; 414;416; 416 SE; 420; 420 A; 420 HC; 420 LC; 420 MO; 430; 430Li; 434; 436; 439; 440 A; 440 C; 441; 442; 444; 446; 18 SR1;Carpenter 20,CB32; Carpenter 4552; Custom 450; 18-9LW1; 19-90L4; Greek Ascology;; AL-6XN4; 904L; Duplex 2205; Duplex 2304; Duplex 2507,Nickel alloys , Titanium and Ti alloys | 2B, 2D, BA, No.3, No.4, No.5, SB, HL |
| 610~2030 mm | 2.5mm~10 mm | 610 or 508 +0/-5 mm | No.1 or As requied |
Striping processing, commonly known as “slitting “, refers to the winding of a metal coil by unwinding, slitting, leveling, winding, and processing into a desired width. Slitting processing is a basic metal processing technology that combines high-quality equipment with skilled craftsmanship. it can be obtained with strict tolerance, perfect surface control , safe packaging as well as fine transportation.
As an effective cost alternative to type 201/304, J204Cu finds a wide range of applications. The major areas are:
CHEMISTRY TYPICAL
Carbon: 0.15 max Phosphorus: 0.060 max Silicon: 1.00 max Nickel: 1.50-3.50 Chromium: 15.50-17.50 Manganese: 6.5-9.0 Copper: 2.00-4.00 Molybdenum: 1.00 max Sulfur: 0.030 max Nitrogen: 0.05-0.25 Iron: Balance
PHYSICAL PROPERTIES
Density: 0.282 lb/in3 7.81 g/cm3 Electrical Resistivity: ohm-inch (microhms-m): 30.039 (0.763) Mean Specific Heat: BTU/lb-°F (J/g-°C): At 73 - 212 °F (23 - 100 °C): 0.119 (.511)
Thermal Conductivity: BTU-in/hr-ft2-°F (W/m•K) At 122 °F (50 °C): 93.79 (13.52) At 212 °F (100 °C): 104.02 (14.99) At 392 °F (200 °C): 118.31 (17.00) At 572 °F (300 °C): 131.18 (18.91) At 752 °F (400 °C): 142.44 (20.53) At 932 °F (500 °C): 154.43 (22.26)
Mean Coefficient of Thermal Expansion:
µin/in-°F (µm/m-°C) 77 -212 °F (25-100 °C}: 9.50 (17.1)
77 -302 °F (25-150 °C}: 9.61 (17.3) 77 -392 °F (25 -200 °C): 9.77 (17.6) 77 -482 °F (25-250 °C): 9.94 (17.9) 77 -572 °F (25 -300 °C): 10.05 (18.1) 77 -662 °F (25-350 °C): 10.16 (18.3) 77 -752 °F (25 -400 °C): 10.33 (18.6) 77 -842 °F (25-450 °C): 10.44 (18.8) 77 -932 °F (25 -500 °C): 10.55 (19.0) 77 -1022 °F (25 -550 °C): 10.66 (19.2) 77 -1112 °F (25 -600 °C): 10.77 (19.4) 77 -1202 °F (25 -650 °C): 10.83 (19.5) 77 -1292 °F (25 -700 °C): 10.77 (19.4) Modulus of Elasticity: KSI (MPa) 29 x 103 (200 x 103) in tension Magnetic Permeability, H = 200 Oersteds: Annealed: 1.02 max*
Alloy 204CU is slightly after cold working but can be minimized. Melting Range: 2552 -2642 °F (1400 -1450 °C)
SAE 204Cu equivalents
DIN 1.4597
DIN X8CrMnCuN17-8-3
AISI 204Cu
EN X8CrMnCuN17-8-3
EN 1.4597
UNS S20430
Packaging (details)
1. Pallets with several coils
1.1 Coils packed eye to sky on one-way pallet with spacers without pallet cover.
1.2 Coils packed eye to sky on one-way pallet with spacers and covered with shrink-wrap.
1.3 Coils packed eye to sky on one-way pallet with spacers and covered with paper hood.
1.4 Coils packed eye to sky on one-way pallet with spacers and covered with wooden box.
1.5 Coils packed eye to sky on pallet with spacers without cover.
1.6 Coils packed eye to sky on pallet with spacers and shrink wrap.
1.7 Coils packed eye to sky on pallet with spacers and paper hood.
2. Pallet with single coil
2.1 Coil packed eye to sky on one-way-pallet without cover.
2.2 Coil packed eye to sky on one-way-pallet with shrink wrap.
2.3 Coil packed eye to sky on one-way-pallet with paper hood.
2.4 Coil packed eye to sky on one-way-pallet with wooden box.
2.5 Coil packed eye to sky on pallet without cover.
2.6 Coil packed eye to sky on pallet with shrink wrap.
2.7 Coil packed eye to sky on pallet with paper hood.
3. Pallets with multistrip
3.1 Multistrip on one-way pallet.
4. Coils standing, unpacked
5. Pallets with spools, standing with horizontal axe
5.1 Wooden spool on one-way pallet standing with horizontal (eye to the wall) axe.
5.2 Cardboard spool (cardboard core and cardboard sheet) on one-way pallet standing (eye to the wall).
6. Cut lengths
6.1 Bundled.
6.2 On wooden boards.
6.3 In wooden boxes.
7. Special customer requests for packaging
7.1 Weight per packing unit.
7.2 Design and size of pallet.
7.3 Number and kind of coil tying.
7.4 Number and kind of interleaving spacer strips.
7.5 Corrosion protection.
7.6 Kind of wood and wood protection used.
7.7 Marking of material and packing.
Q: Would you provide samples For free?
A: Yes . with on stock specification We provide samples For Free . Freight charge collect
Q: What information should i provide to source for the right products ?
A: Material grade, width, thickness, coating and Purchase quantity , Expected lead time ,etc
Q: What are the shipping ports?
A:Under normal circumstances, we ship from Shanghai, Tianjin, Qingdao, Ningbo ports, you
can choose other ports according to your needs.
Q: About product prices?
A:Prices vary from period to period due to cyclical changes in the price of raw materials.
Q: How long does your delivery time take?
A:In general, our delivery time is within 5-45 days, and may be delayed if the demand is extremely
large or special circumstances occur.
Q: Can I visit your location?
A: Of course, we welcome customers from all over the world to visit our factory. However, some
of the plants are not open to the public.
Q: Does the product have quality inspection before loading?
A: Of course, all our products are strictly tested for quality before packaging, and unqualified
products will be destroyed.
Q: How to pack the products?
A:The inner layer has a waterproof paper outer layer with iron packaging and is fixed with a fumigation
wooden pallet. It can effectively protect products from corrosion during ocean transportation.
Q: What is your working time?
A: In general, our online service time is Beijing time: 8:00-22:00, after 22:00,
we will reply to your inquiry during the next working day.