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[China]
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Address: No.283-1, Youyi Middle Road, Xishan District, Wuxi City, Jiangsu Province
Contact name:Gao
JIANGSU MITTEL STEEL INDUSTRIAL LIMITED |
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Soft Anneal AISI301 Stainless Steel Strip Thickness 0.1 - 2.0mm Thickness SS Strips
The 301 stainless steel strip has high strength after cold working, which is the first choice for constant force springs manufacturing.
The constant force spring, also known as torsion spring, which is made of 301 stainless steel strip.
The stress can determine the spring diameter, strength and working life.
The action of a constant force spring is similar to the move of stretching a ribbon.
When the spring stretches and rewinds, the working part is tangent to the circle of the spring itself.
As long as the diameter of the spring is constant, the force of the spring is constant.
In an extremely long spring design work, the diameter has an advantage, and the tension increases slightly as the spring stretches.
However, this increased part is relatively small relative to the stretched length and can be ignored in many real life applications.
According to the application principle of them, constant force springs can be divided into linear motion constant type and rotary motion constant torque type.
When linear stretched, the unit of force will be kilogram, N, pound.
Constant force springs can be used for vehicles, automotive industry, counterweights, power sources, power cords, cordless curtains, generator radios and some toys.
Austenitic stainless steel strip for springs mainly includes SUS301-CSP and SUS304-CSP.
Compared with 304 stainless steel strip, SUS301 spring steel strip has a slightly lower corrosion resistance, but it is more suitable for spring production with a lower cost.
After the special production process of continuous bright annealing and rolling, which can help achieve good hardness and be suitable for bending processing.
Especially in terms of mechanical properties, 301 spring strip is very good, which is unmatched by manganese steel.
Our high strength precision grade 301 stainless steel strip for springs is available in total annealed condition as well as a variety of hardness choice, such as 1/4 hard, half hard, 3/4 hard, full hard and super extra hard.
The thickness range is from 0.02mm to 3mm.
The maximum hardness of cold rolled 301 stainless steel strip we could produce is up to 630 HV.
Meanwhile, the tensile strength is over 2000 N/mm².
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N | |
| 301 | Min | – | – | – | – | – | 16.0 | 2.00 | 10.0 | – |
| max | 0.08 | 2 | 0.75 | 0.045 | 0.03 | 18.0 | 3.00 | 14.0 | 0.1 |
| Grade | Tensile Strength (MPa) min | Yield Strength 0.2% Proof (MPa) min | Elongation (% in 50mm) min | Hardness | |
| Rockwell B (HR B) max | Brinell (HB) max | ||||
| 201 | 515 | 205 | 35% | 75 | 205 |
| Physical Properties (Room Temperature) | ||
| Specific Heat (0-100°C) | 500 | J.kg-1.°K-1 |
| Thermal Conductivity | 14.6 | W.m -1.°K-1 |
| Thermal Expansion | 16.5 | mm/m/°C |
| Modulus Elasticity | 193 | GPa |
| Electrical Resistivity | 7.4 | μohm/cm |
| Density | 7.99 | g/cm3 |
| STANDARD | UNS | JIS | WERKSTOFF NR. | AFNOR | BS | GOST | EN |
| SS 301 | S30100 | SUS 301 | 1.4310 | – | – | – | – |
