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Which medical-grade stainless steel material is used to produce the metal parts of skin staplers?

September 22, 2025

In the manufacturing of skin stapler metal parts, stainless steel is the most widely adopted material due to its combination of corrosion resistance, biocompatibility, strength, and ease of sterilization. Medical staplers require metal staples that can be safely implanted in human tissue for temporary wound closure and later either naturally expelled or manually removed.

Then, we have a question: What grade of stainless steel material is utilized in the manufacturing of skin stapler metal components? Or, Which type of stainless steel material is used in the production of skin stapler metal parts?

Types of stainless steel for Skin stapler metal parts

In the production of skin staplers, two types of stainless steel material are widely used.

STAINLESS STEEL WIRE

Stainless steel wire is used to produce stapler nails, its material detail as follows:

Which medical-grade stainless steel material is used to produce the metal parts of skin staplers?
skin stapler nails

Stainless steel wire quality requirement as follows:

Grade 316L(022Cr17Ni12Mo2) Sort B-SPR Heat No. NY220303AW04
Dia.(mm) 0.59 TS(MPa) 925 Surface condition GOOD
  Chemical Composition(%)        
C 0.016 Si 0.35 Mn 0.95
P 0.025 S 0.001 Cr 17.66
Ni 12.05 Mo 2.26 Cu 0.32
N 0.026        
Chemical composition & Mechanical properties of Stainless steel wire for skin stapler nails

STAINLESS STEEL sheet

Stainless steel sheet is used to produce skin stapler other metal parts, its material detail as follows:

Which medical-grade stainless steel material is used to produce the metal parts of skin staplers?
skin stapler nail pressing plate
Which medical-grade stainless steel material is used to produce the metal parts of skin staplers?
skin stapler sutural nails base
Which medical-grade stainless steel material is used to produce the metal parts of skin staplers?
skin stapler spring plate of firing handle
Which medical-grade stainless steel material is used to produce the metal parts of skin staplers?
skin stapler staple nail forming part

Stainless steel SHEET quality requirement as follows:

Product form SUS Thickness*Width*Length 0.5*65*C Type 304
Temper 3/4 Standard JIS G430-2021    
    Chemical Composition(%)      
C 0.0346 Si 0.486 Mn 1.094
P 0.0316 S 0.0018 Cr 18.126
Ni 8.023        
    Mechanical Properties      
T.S(N/mm2) 1290 Y.S(0.2%)(N/mm2) 1050 Elong(%) 12
Hardness (HV) 330        
Chemical composition & Mechanical properties of Stainless steel sheet for skin stapler nails

 

More information of skin stapler spare parts, plastic injection molds or metal parts and assembling machine, please feel free to contact with us: cnkylt@aliyun.com . We can provide free samples and offer the best factory prices.