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60Si2Mn SUP9 90x13-9 Trailer Leaf Spring 180k Cycles Fatigue Tested for Semi Trailer Suspension

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60Si2Mn SUP9 90x13-9 Trailer Leaf Spring 180k Cycles Fatigue Tested for Semi Trailer Suspension

Certification : ISO 9001:2015

Number of Leaves : 9

Thickness : 13mm

MOQ : 50 Pieces

Material : 60Si2Mn / SUP9

Brand Name : BYF

Delivery Time : 7-15 working days

Width : 90mm

Packaging Details : Export-grade wooden pallet with anti-rust coating, secured with steel straps

Surface Treatment : Anti-rust painted

Supply Ability : 10000 Pieces per Month

Fatigue Life : ≥180,000 Cycles

Model Number : 90x13-9

Price : USD 30-80 / Piece

Hardness : 40-47 HRC

Payment Terms : T/T,L/C,Western Union

Application : Semi Trailer Suspension

Place of Origin : Shandong, China

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60Si2Mn SUP9 90x13-9 Trailer Leaf Spring 180k Cycles Fatigue Tested for Semi Trailer Suspension System
The 90x13-9 trailer leaf spring is engineered for heavy-duty semi-trailer suspension systems, manufactured from premium 60Si2Mn (SUP9 equivalent) spring steel to deliver exceptional fatigue resistance and load-bearing performance.
Technical Specifications
Parameter Specification
Material 60Si2Mn / SUP9 Spring Steel
Width 90mm
Thickness 13mm
Number of Leaves 9
Fatigue Life ≥180,000 Cycles
Hardness 40-47 HRC
Application Semi Trailer / Heavy-Duty Truck Suspension
Surface Treatment Anti-rust Painted
Certification ISO 9001:2015
Place of Origin Shandong, China
Key Features
  • Premium Material: 60Si2Mn / SUP9 grade spring steel, providing superior elasticity and deformation resistance
  • Optimized Specification: 90mm width × 13mm thickness × 9 leaves, designed for heavy-load semi-trailer applications
  • Proven Durability: ≥180,000 cycles fatigue tested under full-load conditions, ensuring long service life
  • Precision Heat Treatment: 40-47 HRC hardness achieved through controlled quenching and tempering processes
  • Corrosion Protection: Anti-rust painted finish for extended service life in harsh environments
  • Wide Application: Compatible with various semi-trailer, heavy-duty truck, and commercial vehicle suspension systems
Performance
Each leaf spring undergoes rigorous multi-stage fatigue testing exceeding 180,000 cycles, ensuring reliable performance under extreme load conditions. The 60Si2Mn SUP9 material offers enhanced tensile strength and fatigue resistance compared to standard spring steel grades, making it ideal for demanding long-haul trailer operations.
Quality Control
Manufactured under ISO 9001:2015 certified quality management system. Every batch is tested for dimensional accuracy, hardness uniformity, and fatigue endurance before shipment.
Packaging & Delivery
Export-grade wooden pallet packaging with anti-rust coating and steel strap securing. Custom specifications and OEM branding available upon request. Standard delivery within 7-15 working days.

Product Tags:

60Si2Mn SUP9 Spring Steel Material

      

180k+ Cycles Fatigue Resistance

      

90x13-9 Semi Trailer Suspension

      
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60Si2Mn SUP9 90x13-9 Trailer Leaf Spring 180k Cycles Fatigue Tested for Semi Trailer Suspension Images

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