301 Stainless Steel Spring Material (CSP)

AISI301 / SUS301 (1.4319)

HE-TIEN offers a wide range of sizes and hardness options for 301 stainless steel spring material, including the steel grade AISI/SUS 301 (1.4301)CSP. The thickness ranges from 0.1mm to 2.0mm, and the hardness can be classified as 1/2H, 3/4H, H, EH, SEH. The products of 301 stainless steel spring material are mostly in the form of coils or strips, and custom widths ranging from 10mm to 1250mm are available.

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HE-TIEN specializes in providing customized services for 301 stainless steel spring steel strips and coils, tailored to meet your specific needs. You can specify the weight and width of the spring steel according to your requirements, and we offer precise edge trimming services to ensure clean and safe edges.

To enhance the professional appearance and functionality of your products, we offer a variety of additional services. These include applying protective films such as PE blue film, PVC black and white film, CO2 laser film, and fiber laser film. Furthermore, we provide material inkjet printing services, enabling easy identification and traceability, and adding a personalized touch to your products.

Compared to 304-CSP, 301-CSP stainless steel spring material offers higher hardness and superior performance in terms of fatigue resistance. This makes 301-CSP an ideal choice for applications requiring greater durability and resilience. Our 301 stainless steel spring material is extensively used across various industries in a wide range of devices and equipment. Its excellent properties make it suitable for demanding applications, ensuring long-lasting performance and reliability. The trust and satisfaction of our customers, demonstrated by our long-term stable relationships, are a testament to the quality and service we provide.

We are committed to delivering products of the highest quality. By sourcing the finest 301 stainless steel spring materials and utilizing advanced production processes, we ensure that our products meet the stringent standards required by our customers. Our strict quality control measures are designed to provide stable and reliable products, consistently meeting and exceeding customer expectations.

HE-TIEN's dedication to quality and customer satisfaction has earned us wide recognition in the market. Our comprehensive approach, from understanding customer needs to delivering tailored solutions, has helped us establish a strong reputation for excellence. The positive feedback we receive from our customers is a driving force behind our continuous improvement and growth.

HE-TIEN is your trusted partner for 301 stainless steel spring material. Our extensive customization options, superior product performance, and unwavering commitment to quality make us the preferred choice for industries worldwide. Contact us to learn more about our products and how we can meet your stainless steel needs.

Product Specification

ASTM A240/A240M/A480/A480M
JIS G4305/G4304
EN 10028-1/10088-2

Characteristics and Applications of Stainless Steel Spring Material

301-CSP and 304-CSP are the main austenitic stainless steel spring materials. Compared to 304-CSP , 301-CSP has slightly lower corrosion resistance but is more suitable for spring production. Through a special production process of continuous bright annealing and rolling, it can achieve good hardness and is suitable for bending and processing.

301-CSP has a lower chromium (Cr) content compared to 304-CSP, resulting in inferior corrosion resistance. However, it can achieve very high tensile strength and hardness through cold working, making it widely used in various applications. Its excellent elasticity makes it extensively employed in laptops to prevent electromagnetic interference as elastic contact parts.

Even if the hardness is the same between 301 and 304, when used in elastic products, materials with similar hardness (such as SUS301-3/4H and SUS304-H), SUS304-H is more prone to elastic fatigue.

Due to its high strength and excellent corrosion resistance, stainless steel spring material is widely used in the following applications: industrial springs, conveyor belts, connectors, switch components, aircraft parts, electrical components, precision stamped parts, and hardware.

Even with similar hardness, materials like SUS301-3/4H and SUS304-H, when used in elastic products, SUS304-H is more susceptible to elastic fatigue.

Stainless steel spring material is widely used in various applications due to its high strength and excellent corrosion resistance, including industrial springs, conveyor belts, connectors, switch elements, aircraft components, electrical elements, precision stamped parts, and hardware.

Stainless Steel 200 / 300 / 400 Series Characteristics

Stainless steel spring material is typically composed of iron, carbon, chromium, nickel, cobalt, and other alloying elements. Stainless steel can be divided into three series: 200 series, 300 series, and 400 series, which differ in the type and proportion of alloying elements.

200 Series: Primarily containing nickel and manganese but no chromium, they have poorer corrosion resistance but good ductility and formability, making them easy to process and shape. Products made from 200 series stainless steel include kitchen utensils, furniture, pipes, and building structures.

300 Series: Primarily containing chromium and nickel but no molybdenum, they have excellent corrosion resistance and high-temperature performance, making them particularly suitable for use in industries such as chemical, petroleum, and food processing. The most common of these is 304 stainless steel, which has a wide range of applications including kitchen utensils, food processing equipment, medical devices, building exterior decoration, and more.

400 Series: Primarily containing chromium and molybdenum but no nickel, they have poorer corrosion resistance but good heat and wear resistance, making them particularly suitable for use in industries such as mechanical and automotive manufacturing. The most common of these is 430 stainless steel, which is used to make components such as cutting tools, screws, bearings, and automotive parts, as well as building and decorative materials.

Order Information

Minimum Order Quantity for Stainless Steel Coils: 3 metric tons.
Minimum Order Quantity for Stainless Steel Strip: Depends on the width of the stainless steel strip.
Payment Method: Letter of Credit (L/C) or Telegraphic Transfer (T/T)

Stainless Steel Spring Material (CSP) - Mechanical Property

Stainless Steel Grade	Mark	Hardness (HV)	Tensile Strength (N/mm²)	Yield Strength (N/mm²)	Elongation (%)
304-CSP	1/2H	250 ~ 310	≥ 780	≥ 470	≥ 6
	3/4H	310 ~ 370	≥ 930	≥ 665	≥ 3
	H	≥ 370	≥ 1130	≥ 880	-
301-CSP	1/2H	310 ~ 370	≥ 930	≥ 510	≥ 10
	3/4H	370 ~ 430	≥ 1130	≥ 745	≥ 5
	H	430 ~ 490	≥ 1320	≥ 1030	-
	EH	490 ~ 530	≥ 1570	≥ 1275	-
	SEH	≥ 530	≥ 1740	≥ 1450	-

Gallery

301-1/2H stainless steel spring material, with a thickness of 0.8 mm, is processed into steel strips through a coil slitting machine.
301-H stainless steel spring material, with a thickness of 1.0 mm, is in the form of steel strips. It is packaged in a woven strap and further protected with a blue PE film on the outer layer.
301-H stainless steel spring material, with a thickness of 1.0 mm, is in the form of steel strips. It is packaged in a woven strap and further protected with a blue PE film on the outer layer.

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