301 1/2H 3/4H H Stainless Steel Coil for High Strength Spring and Precision Components
The 301 1/2H 3/4H H stainless steel coil is widely recognized as one of the most reliable stainless steel materials for applications requiring exceptional strength, durability, and fatigue resistance. This stainless steel grade is specifically engineered to achieve higher tensile strength through cold working while maintaining good corrosion resistance and excellent mechanical performance.
AISI 301 stainless steel is a chromium-nickel stainless steel that offers superior work hardening capability compared with many other stainless steel grades. After cold rolling, the material can be processed into different temper conditions such as 1/2 hard (1/2H), 3/4 hard (3/4H), and full hard (H). These hardness levels allow manufacturers to select the ideal balance between strength, flexibility, and formability for different production needs.
Because of its high strength and excellent fatigue resistance, the 301 1/2H 3/4H H stainless steel coil is commonly used in industries such as automotive manufacturing, electronic hardware production, spring fabrication, metal stamping, and precision mechanical components. Manufacturers around the world rely on this stainless steel coil for producing durable components that must maintain performance even under repeated stress and mechanical load.
In addition to its mechanical advantages, this material also offers good corrosion resistance in many industrial environments. The chromium content provides protection against oxidation and rust, while the nickel improves toughness and structural stability. As a result, components produced from 301 stainless steel coil can maintain long service life even in demanding operating conditions.
Key Product Features
High Tensile Strength
The cold rolled temper conditions significantly increase tensile strength, making the material suitable for high-load applications.
Excellent Fatigue Resistance
Ideal for springs and components that experience repeated mechanical stress.
Outstanding Work Hardening Capability
301 stainless steel becomes stronger during forming processes.
Smooth Surface Finish
BA or 2B surface finish ensures good appearance and processing quality.
Good Corrosion Resistance
Suitable for industrial environments where moderate corrosion protection is required.
Typical Applications
Spring Manufacturing
- Compression springs
- Flat springs
- Retaining springs
- Precision elastic components
Automotive Industry
- Automotive seat clips
- Structural brackets
- Exhaust system hardware
Electronics Industry
- Electrical connectors
- Battery components
- Shielding parts
Hardware Manufacturing
- Metal clips
- Mechanical fasteners
- Industrial brackets
Technical Specification
| Parameter |
Specification |
| Material Grade |
AISI 301 |
| Temper |
1/2H / 3/4H / H |
| Thickness |
0.05 mm - 3.0 mm |
| Width |
10 mm - 1250 mm |
| Surface Finish |
BA / 2B |
| Edge |
Mill Edge / Slit Edge |
| Standard |
ASTM A240 / JIS / EN |
| Coil Weight |
1 - 10 Tons |
Why Choose Our Stainless Steel Coil
Advanced Manufacturing Technology
Our production lines use modern cold rolling equipment to ensure precise thickness control and uniform hardness.
Strict Quality Inspection
Every coil undergoes mechanical property testing and surface inspection before shipment.
Customization Capability
We provide customized width, thickness, temper condition, and surface finish according to customer requirements.
Stable Global Supply
With extensive export experience, we provide reliable supply for international buyers.
Competitive Pricing
Direct factory supply ensures cost-effective solutions for industrial customers.
Frequently Asked Questions
What is the difference between 301 and 304 stainless steel?
301 stainless steel has higher strength due to its excellent work hardening capability, while 304 stainless steel provides better corrosion resistance.
What does 1/2H or 3/4H mean?
These terms refer to hardness levels achieved through cold rolling.
Can the coil be slit into narrow strips?
Yes, we can supply slit coils according to customer requirements.
Is 301 stainless steel suitable for springs?
Yes, it is widely used for spring manufacturing because of its fatigue resistance.
Do you offer custom specifications?
Yes, thickness, width, and temper can be customized.
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