Product Introduction
Hanli is a professional manufacturer of high-quality materials. Our SUS440C FLAT products are available in both Rectangular and Special-Shaped Forms.
Rectangular Form: Standard flat rectangular cross-section, suitable for precision machining, air-conditioning sliding plates, etc.
Special-Shaped Forms: Tailored to customer requirements (e.g., trapezoidal profiles, special contours, and base materials for rails).
Material Quality Assurance
Our materials are sourced from top-tier domestic steel mills, ensuring strict compliance with GB/JIS/AISI/DIN standards.
JIS SUS440C is a high-carbon, high-chromium stainless steel.
Key characteristics: This grade contains the highest carbon content in the 400 series stainless steels, enabling it to achieve the maximum hardness and wear resistance through heat treatment. Its corrosion resistance is comparable to other grades in the 400 series.
|
GB |
AISI |
JIS |
EN/DIN |
|
108CR17 |
440C |
SUS440C |
1.4125) |
|
Chemical Composition |
||||||||||||
|
Chemical Element |
C |
Mn |
Si |
S |
P |
Cr |
V |
W |
Mo |
Ni |
Cu |
T1 |
|
Max (%) |
1.20 |
1.0 |
1.0 |
0.03 |
0.04 |
18 |
- |
- |
0.75 |
0.6 |
- |
- |
|
Min (%) |
0.95 |
0 |
0 |
0 |
0 |
16 |
- |
- |
0 |
0 |
- |
- |
JIS SUS440B is a high-carbon, high-chromium martensitic stainless steel
Key distinction: Features slightly lower carbon (C) content compared to 440C, resulting in moderately reduced hardness and wear resistance, but improved toughness and machinability.
|
GB |
AISI |
JIS |
EN/DIN |
|
95Cr18 |
440B |
SUS440B |
1.4112) |
|
Chemical Composition |
||||||||||||
|
Chemical Element |
C |
Mn |
Si |
S |
P |
Cr |
V |
W |
Mo |
Ni |
Cu |
T1 |
|
Max (%) |
0.70 |
1.0 |
1.0 |
0.03 |
0.04 |
18 |
/ |
/ |
0.70 |
0.60 |
- |
- |
|
Min (%) |
0.60 |
0 |
0 |
0 |
0 |
15 |
/ |
/ |
0.45 |
0 |
- |
- |
Cr (chromium) improves the oxidation and corrosion resistance of steel.
Mo (molybdenum) refines the grain structure, and enhances the hardenability and hot-strength properties of steel.
Capacity range and tolerance of SUS440C FLAT
|
Thickness |
Thickness tolerance |
Width |
Width tolerance |
|
0.9-2.5mm |
±0.02mm |
6-15mm |
±0.03mm |
|
0.6-1.4mm |
±0.02mm |
10-30mm |
±0.03mm |
|
1.4-2.5mm |
±0.02mm |
6-30mm |
±0.03mm |
|
2.5-5.0mm |
±0.02mm |
12-30mm |
±0.03mm |
Delivery state of SUS440C FLAT: Coil and Fixed Length
Advantages:
All products provided satisfy the requirements of international GB/T9941-2009 or GB/T1220-2007.
There are no defects on the surface of the material that affect its use, such as layering, rust, inclusion, scabs, cracks, etc.
Providing heat treatment processing, ultra deep cooling processing.
Please consult our company about non-standard products that can be customized with drawings.
Conclusion: For applications requiring the highest level of hardness and wear resistance, 108Cr17 (equivalent to 440C) is the recommended choice. For balanced performance and cost-effectiveness, 95Cr18 (equivalent to 440B) represents an excellent alternative.
Typical Application Scenarios
SUS440C FLAT is widely used in the manufacture of:
High-wear-resistant cutting tools
(e.g., precision thin-blade knives, industrial slitting blades, plastic/rubber cutting blades, food-processing slicing knives)
Medical devices and surgical instruments
(e.g., orthopedic surgical tools, dental root canal files, dental micro-burs, suturing needles, puncture needles, and minimally invasive surgical instruments)
Other high-wear-resistant and corrosion-resistant components
(e.g., bearing retainers, precision slide rails, fuel injection needle valves, chemical valve seals, high-precision measuring tools)
About Hanli
Zhejiang Jinyun Hanli Saws Co., Ltd. is located in Lishui City, Zhejiang Province, with beautiful mountains and clear waters. It mainly produces high-speed steel circular saw blades, gear grinders, as well as special steel components such as air conditioning compressors, automotive core components, and steering pumps. Our products are exported to over 40countries overseas.
The company has established its own research and development system, possesses 15 patented technologies, and has been awarded the titles of Provincial High tech Enterprise, Provincial Science and Technology Enterprise, and Top 50 County Ecological Industry
As a national high-tech enterprise and a specialized and innovative small and medium-sized enterprise, Hanli Sawing Industry has established an enterprise research institute and a doctoral innovation station. It has 2 elite talents from Lishui Green Valley and 1 "Double Hundred Double Entry" PhD. Hanli Sawing Industry has long-term cooperative relationships with scientific research institutions such as Zhejiang Metallurgical Research Institute and Baosteel Central Research Institute.
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