Stainless Steel Strip AISI301 Full Hardness SS Strips for Spring

FH (Full Hard) 301 stainless steel introduction

FH (Full Hard) 301 stainless steel is achieved by cold working (such as cold rolling) to a fully hardened state, with extremely high strength and hardness, but low ductility. This state is suitable for applications requiring high strength and wear resistance.

Chemical composition of 301 stainless steel strip

• Carbon (C) : ≤0.15%
• Silicon (Si) : ≤1.00%
• Manganese (Mn) : ≤2.00%
• Phosphorus (P) : ≤0.045%
• Sulfur (S) : ≤0.030%
• Chromium (Cr) : 16.00-18.00%
• Nickel (Ni) : 6.00-8.00%

Mechanical properties of 301 stainless steel strip

• Tensile strength: ≥1200 MPa
• Yield strength: ≥1000 MPa
• Elongation: ≥5%
• Hardness: ≥400 HV

301 stainless steel tape is widely used in many industries because of its excellent strength and corrosion resistance. The following are its common specifications:

 Thickness

• Range: 0.03mm to 3.0mm

Common thickness:

• 0.1mm, 0.2mm, 0.3mm,0.4mm, 0.5mm, 0.6mm,0.8mm, 1.0mm, 1.2mm, 1.5mm, 2.0mm, 2.5mm, 3.0mm

Width of 301 Stainless Steel Strip

• Range: 4mm to 1000mm

Common width:

• 10mm, 20mm, 50mm, 100mm, 200mm, 300mm, 500mm, 600mm, 800mm, 1000mm or slit cutting any width as request

Length

• Scope: Customized according to customer needs

Common length:

• Coil: usually 50 meters to 200 meters
• Straight strip: 1 m to 6 m

Surface treatment

• 2B surface: After cold rolling, heat treatment, pickling, smooth surface.
• BA surface: bright annealing treatment, the surface is as bright as a mirror.
• No.4 Surface: After grinding, the surface is fine grained.
• HL surface: brushed, the surface is hair-like.

Hardness state of 301 stainless steel strip

• Annealed (soft) : low hardness, good ductility.
• 1/4 h: partially hardened, medium strength and malleability.
• 1/2H: semi-hardened, high strength and medium ductility.
• 3/4H: mostly hardened, high strength and low ductility.
• FH (Full Hard) : Fully hardened, extremely strong and low ductility.

Corrosion resistance:

• The corrosion resistance of FH 301 stainless steel has decreased after cold processing, but it is still suitable for general atmospheric environment and weakly corrosive media.

Processing properties:

• Formability: Due to its extremely high hardness and low ductility, FH 301 stainless steel has poor formability and is suitable for processing of simple shapes.
• Welding: It can be welded, but after welding, it is necessary to perform solid solution treatment to restore corrosion resistance.

Heat treatment:

• Solution treatment: heating to 1010-1120 ° C, then rapid cooling to restore corrosion resistance and processing properties.

peculiarity

• High strength: Extremely high strength and hardness through cold working.
• Wear resistance: Suitable for high wear environment.
• Corrosion resistance: It has good corrosion resistance in general atmospheric environment and weakly corrosive media.
• Low ductility: poor formability, suitable for simple shape processing.

Application field

• Electronic products: mobile phones, computer cases, etc.
• Automobile manufacturing: body structure parts, springs, etc.
• Architectural decoration: curtain wall, decorative strip, etc.
• Aerospace: aircraft structural parts, engine parts, etc.
• Industrial equipment: parts requiring high strength and wear resistance