N4 and N6 correspond to Ni201 and Ni200 in ASME II, that is, low carbon pure nickel and ordinary pure nickel (i.e. N4/Ni201, N6/Ni200)
Nickel strip execution standard: N4/N6 pure nickel strip production execution standard GB/T2072-2007
Nickel strip status: hard (Y), semi-hard (Y2), 1, 4 hard (Y4), soft (M)
Nickel strip specifications: Broadband: 2~330mm Thickness: 0.05~1mm Length: >=3000mm
Nickel strip purity: above 99.95%
Characteristics of nickel strip: good gloss, ductility, and weldability
Specifications | In stock, can be customized according to customer requirements |
Form | Plate,Strip |
Classification | Pure nickel alloy |
Product type | Products | Dimension | Processes | Deliver Status |
Plates / Sheets | Plates / Sheets | 0.08-200mm(T)*W*L | Forging, hot rolling and cold rolling | Annealed, Solution and Aging, Q+T, ACID-WASHED, Shot Blasting |
Steel Bar | Round Bar, Flat Bar, Square Bar | Φ8-1200mm*L | Forging, hot rolling and cold rolling, Cast | Black, Rough Turning, Shot Blasting, |
Coil / Strip | Steel Coil /Steel Strip | 0.03-16.0x1200mm | Cold-Rolled & Hot-Rolled | Annealed, Solution and Aging, Q+T, ACID-WASHED, Shot Blasting |
Pipes / Tubes | Seamless Pipes/Tubes, Welded Pipes/Tubes | OD:6-219mm x WT:0.5-20.0mm | Hot extrusion, Cold Drawn, Welded | Annealed, Solution and Aging, Q+T, ACID-WASHED |
2）Chemical Composition
ALLOY | Ni+ Co | Fe | Cu | C | Mn | S | Si | Mg | Total impurities |
N4 | 99.0 min | 0.40 max | 0.015 max | 0.01max | 0.002max | 0.001 max | 0.03max | 0.001 | 0.1 |
N6 | 99.0 min | 0.1 max | 0.06max | 0.1 max | 0.05 max | 0.005 max | 0.1 max | 0.005 | 0.5 |
3）Mechanical behavior
Grade | State | Tensile strength,(N/mm) | Elongation |
N6、N7、MSiO.19 | M | 382 | 30 |
NSiO.2、NMgo.1 | Y | 539 | 2 |
NCu28-2.5-1.5 | M | 441 | 2.5 |
Y2 | 568 | 6.5 |
N6 pure nickel stripis particularly resistant to alkali corrosion and is relatively stable at high temperatures or in molten alkali, so it is mainly used in the alkali production industry. At room temperature, nickel is extremely stable in seawater, salt solutions, and organic media (such as fatty acids, phenols, alcohols, etc.). It is not resistant to inorganic acid corrosion and is unstable in acetic acid and formic acid.
N6 pure nickel stripis a silver-white metal. Due to its excellent corrosion resistance, high electric vacuum performance, and electromagnetic control performance, it is widely used in the chemical industry, mechanical electronics, food, etc. Pure nickel has excellent welding and processing properties. Nickel and nickel alloy W are processed into tubes, rods, wire sheets, strips, and foil products.
N6 pure nickel stripis the most widely used material in the industry. It has good mechanical properties and excellent corrosion resistance in many corrosive environments, especially the corrosion resistance of caustic soda.
The manufacturing process of stainless steel and alloys involves multiple steps to transform raw materials into flat,rectangular sheets or plates made of stainless steel and alloys. Here are a few key steps for stainless steel and alloys:
Molten stainless steel and alloys are cast into large ingots or billets through a casting process.
During the hot rolling process,the thickness of the steel ingot is gradually reduced and elongated to form long strips or coils.
Annealing involves heating stainless steel and alloys to a specific temperature and then slowly cooling it.
Cold rolling is carried out through rolling mills to reduce thickness to meet customer specifications.
Wuxi Walmay Metal Co,Ltd is a comprehensive processing group of Alloy Steel、Forged Parts Fitting、Titanium Alloy、Stainless Steel、Special Welding Wireseries， and more than 800 specifications.
Our group has been engaged in the domestic and global market for more than ten years with rich steel experience and can offer professional advice for customers inapplications with different materials.
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Heat treatment and annealing: Wuxi Walmay Metal can heat treat certain 400 series stainless steels.
Material Reliability Identification (PMI): Wuxi Walmay Metal can complete this testing in-house.
Ut Testing: Ultrasonic testing (UT) uses high-frequency sound energy to inspect and measure stainless steel products.
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