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Ningbo Huali Steel Co., Ltd. has extended its product line from precision stainless strip to FeCrAl electric-resistance heating alloy strip, titanium and titanium alloy strip, and nickel-based alloy strip. The range now covers 1Cr13Al4, 0Cr15Al5, 0Cr25Al5, 0Cr18Al4, 0Cr21Al6, 0Cr21Al6Nb, Alloy 800, 625, 840, 4J36, TA1, TA2 and more, with surface finishes including 2B, BA, HL and mirror.
Why the product line is being broadened
Strip demand is moving in two directions at once. Electrification and compact consumer electronics are pushing thin-gauge stainless and nickel alloys into contacts, battery components and thermal management, while heating appliances, photovoltaics and medical consumables need materials that stainless steel cannot provide: resistance heating alloys, titanium that combines corrosion resistance with biocompatibility, and nickel-based alloys for high-temperature or highly corrosive service.
FeCrAl: strip for resistance heating
|
Grade |
Chemical composition (%) |
Mechanical properties at room temperature in the annealed condition |
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|
Max. working temperature, °C |
Resistivity [μΩcm] |
Melting point [20°C] |
Yield strength [Rp0.2 MPa] |
Tensile strength [MPa] |
Elongation [%] |
Hardness HV |
||
|
1Cr13Al4 |
Cr 12.0 to 15, Al 3.0 to 5.0 |
950 |
1.25±0.08 |
1450 |
≥400 |
≥600 |
≥12 |
200 to 260 |
|
0Cr15Al5 |
Cr 13.5 to 15.5, Al 4.0 to 6.0 |
1050 |
1.29±0.07 |
1450 |
≥400 |
≥600 |
≥12 |
200 to 260 |
|
0Cr25Al5 |
Cr 23.0 to 26.0, Al 4.5 to 6.5 |
1250 |
1.42±0.07 |
1500 |
≥400 |
≥600 |
≥12 |
200 to 260 |
|
0Cr18Al4 |
Cr 18.0 to 21.0, Al 3.0 to 5.0 |
1050 |
1.35±0.07 |
1450 |
≥400 |
≥600 |
≥12 |
200 to 260 |
|
0Cr21Al6 |
Cr 19 to 22, Al 5.0 to 7.0 |
1250 |
1.42±0.07 |
1500 |
≥400 |
≥600 |
≥12 |
200 to 260 |
|
0Cr21Al6Nb |
Cr 21.0 to 23.0, Al 5.0 to 7.0, Nb 0.5 |
1350 |
1.45±0.07 |
1510 |
≥400 |
≥600 |
≥12 |
200 to 260 |
Typical applications are resistance heating elements, infrared cooker heating plates and e-cigarette heating structures; these applications require the alloy to hold its resistance value and oxidation resistance at high temperature rather than merely to be stainless.
Titanium and nickel-based alloys
Titanium and titanium alloys: grades and composition
|
ASTM B265 |
GB/T 3620.1 (China) |
JIS H4600 (Japan) |
Element content (wt%) |
Mechanical properties |
|
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|
N, |
C, |
H, |
Fe, |
Others |
Tensile strength MPa, min |
Elongation %, min |
|
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|
Pure titanium |
Gr.1 |
TA1 |
Class 1 |
0.03 |
0.08 |
0.015 |
0.20 |
- |
240 |
- |
Low carbon and low oxygen give good stamping performance; commonly used in plate heat exchangers and stamped parts |
|
Gr.2 |
TA2 |
Class 2 |
0.03 |
0.08 |
0.015 |
0.30 |
- |
345 |
- |
Higher strength than Gr.1; mostly used in corrosive chemical equipment |
|
|
Gr.3 |
TA3 |
Class 3 |
0.05 |
0.08 |
0.015a |
0.30 |
- |
450 |
- |
Higher strength again; mostly used in low-pressure vessels and storage tanks that require corrosion resistance |
|
|
Gr.4 |
TA4 |
Class 4 |
0.05 |
0.08 |
0.015 |
0.50 |
- |
550 |
- |
The strongest pure titanium grade; mostly used for bone plates in human implants |
|
|
Titanium alloy |
Gr.5 |
TC4 (Ti-6Al-4V) |
Class 60 |
0.05 |
0.08 |
0.015 |
0.40 |
Al:5.5-6.75 |
895 |
420 |
The widely used α+β alloy; high strength with relatively low toughness |
|
Gr.7 |
TA9 |
Class 12 |
0.03 |
0.08 |
0.015 |
0.30 |
Pd:0.12-0.25 |
345 |
490 |
Gr.2 with palladium (Pd) added for better corrosion resistance |
|
|
Gr.9 |
TC2 |
class 61 |
0.03 |
0.08 |
0.015 |
0.25 |
Al:2.5-3.5 |
620 |
345 |
Semi-TC4; service temperature higher than Gr.1-4 |
|
|
Gr.11 |
TA9-1 |
Class 11 |
0.03 |
0.08 |
0.015 |
0.20 |
Pd:0.12-0.25 |
240 |
420 |
Gr.1 with palladium (Pd) added for better corrosion resistance |
|
|
Gr.23 |
TC4 ELI |
Class 60E |
0.03 |
0.08 |
0.0125 |
0.25 |
Al:5.5-6.5 |
828 |
620 |
Lower interstitial element content with good impact toughness |
|
Nickel alloys and their applications
|
DIN |
Alloys |
Service Properties |
Applications |
|
2.4066 |
200 |
Industrial pure nickel with good mechanical properties and corrosion resistance. |
BURSTING DISCS, BATTERY TAGS, EXPLOSION-PROOF PANELS, CONTACT POINTS |
|
2.4068 |
201 |
Low carbon version, generally specified for temperatures above 315° C, is not subject to embrittlement due to low carbon content. |
ELECTRONIC PARTS, AEROSPACE COMPONENTS, BURSTING DISCS, BATTERY TAGS |
|
2.4360 |
400 |
High strength and corrosion resistance, particularly in sea water. |
MARINE ENGINEERING, CHEMICAL PROCESS PLANT, BELLOWS, HEAT EXCHANGERS |
|
2.4816 |
600 |
A nickel-chromium alloy which resists oxidation up to 1,200° C |
FLEXIBLE TUBING, FURNACE EQUIPMENT. INSULATION BLANKET, CHEMICAL AND FOOD PROCESSING |
|
2.4851 |
601 |
Lower nickel content than Alloy 600, with aluminium and silicon additions for improved oxidation resistance. |
FURNACE EQUIPMENT |
|
2.4856 |
625 |
High temperature, high strength alloy, tougher than Alloy 600 and higher oxidation resistance. |
BELLOWS, HEAT EXCHANGERS, SEALS |
|
2.4668 |
718 |
Age hardening, high strength alloy. Titanium and niobium additions overcome strain age cracking problems in welding. |
HIGH TEMPERATURE SPRINGS. |
|
2.4668 |
X750 |
Age hardening.Excellent relaxation resistance. |
HIGH TEMPERATURE SPRINGS, DIAPHRAGMS. |
|
2.4819 |
C276 |
High resistance to oxidizing and reducing atmospheres.Very resistant to acid chlorides. |
CHEMICAL PROCESSING PLANT, |
|
2.4665 |
X |
Additional amounts of chromium and iron provide strength and resistance to corrosion and oxidation up to 1,170° C. |
AEROSPACE COMPONENTS, |
|
2.4876 |
800 |
Excellent strengths at elevated temperatures |
PETROCHEMICAL PROCESS TUBING, |
|
2.4858 |
825 |
Additional molybdenum for increased corrosion resistance over Alloy 800.Resistant to oxidizing and reducing acids, particularly sulfuric acid. |
TUBING,PIPEWORK IN PETROCHEMICAL INDUSTRY,SEALS, GASKETS |
|
2.3381 |
29/18 |
Controlled expansion alloy whose co-efficient of expansion decreases with rising temperature and matches the expansion rate of glass. |
GLASS TO METAL SEALING APPLICATIONS AND CERAMICS |
Compliance and documentation
0Cr21Al6, 301 and 304 are RoHS certified, and the quality management system is certified to ISO 9001. EN 10204 3.1 certificates traceable to heat number can be supplied with each shipment, and in-house testing covers XRF composition analysis, tensile testing, Vickers hardness and salt-spray testing.
FAQ
Which FeCrAl grades can you supply?
1.4725 (CrAl4) and 1.4767 (CrAl6), available in hard or bright-annealed condition; published mechanical properties are given for a reference thickness of 50 µm.
Can you supply titanium for medical applications?
TA1–TA7 are supplied to ASTM B265 / ASME SB-265, and medical applications reference ASTM F67 / ISO 5832-2. Medical-grade qualification is confirmed item by item for each order.
Which nickel-based alloy grades do you offer?
200, 201, 400, 600, 601, 625, 718, X750, C276, X and 800, supplied as strip for bellows, heat exchangers, springs, seals and chemical equipment.
Are these materials RoHS compliant?
0Cr21Al6, 301 and 304 hold RoHS certification; for other grades, declarations against the applicable RoHS and REACH requirements are issued per order.
