130 KSI Ultra-High Strength Structural-Quality Steel Plate

130 ksi minimum yield steel plate is a premium ultra-high-strength structural plate that has undergone quenching and tempering (Q&T). This heat treatment process greatly enhances its strength and toughness, making it ideal for heavy-duty applications such as semi-trailers, cranes, forestry equipment, and mining machinery. It is engineered to deliver a minimum yield strength of 130 ksi (≈ 890 MPa), regardless of the specific alloying or heat treatment method used by the mill. Every order is backed by a Mill Test Report (MTR) to guarantee quality compliance.
We offer 130 KSI Ultra-High Strength Structural-Quality Steel Plate and related grades with 100% factory direct pricing and free quotes available within 6 hours.

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Product Introduction

 What is 130 ksi Min-Yield Steel Plate?

130 ksi minimum yield steel plate is a premium ultra-high-strength structural plate that has undergone quenching and tempering (Q&T). This heat treatment process greatly enhances its strength and toughness, making it ideal for heavy-duty applications such as semi-trailers, cranes, forestry equipment, and mining machinery.

It is engineered to deliver a minimum yield strength of 130 ksi (≈ 890 MPa), regardless of the specific alloying or heat treatment method used by the mill. Every order is backed by a Mill Test Report (MTR) to guarantee quality compliance.


Key Features

  • Minimum 130 ksi yield strength

  • Quenched and tempered for superior strength

  • Excellent strength-to-weight ratio

  • Guaranteed performance, verified by MTRs

  • Used in load-bearing, impact-resistant applications


📐 Standard Sizes Available

Grade Thickness Width Length
130 ksi / 890 MPa Plate 3/16″ – 4″ 48″ – 120″ Up to 480″

Custom dimensions may be available upon request.


🔬 General Mechanical Properties

Property Value
Yield Strength (min) 130 ksi (≈ 890 MPa)
Tensile Strength (typical) 140 – 160 ksi
Elongation in 2” (min) 14 – 18%
Brinell Hardness 280 – 340 HB
Heat Treatment Quenched & Tempered

📊 130 ksi Plate vs. A514 Grade Q (Q&T Comparison)

Feature 130 ksi Steel Plate A514 Grade Q
Min. Yield Strength 130 ksi 100 ksi
Thickness Range Up to 4″ Up to 8″
Primary Application Trailers, Cranes, Mining Bridges, Heavy Machines
Weldability Moderate (requires care) Good with preheat
Machinability Moderate to High High
Heat Treatment Q&T Q&T

✅ Practical Checklist: Before Using 130 ksi Steel Plate

✅ Task ✔ Done
Confirm yield strength requirement for your project
Select appropriate thickness and dimensions
Verify mechanical properties via Mill Test Report (MTR)
Ensure welding specs include preheat guidelines
Perform NDT inspections after fabrication

Product Show

Supplier of various types of carbon steel

Luo Kaiwei Steel Company is a comprehensive steel supplier that produces a variety of carbon steel plates, carbon steel pipes, galvanized steel, carbon steel coils, and steel profiles.

Luo Kaiwei Steel Company is a multi-ISO certified steel manufacturer specializing in carbon steel plates, pipes and galvanized coils since 2010. Competitive prices and ASTM/JIS compliant. Get instant quotes for bulk orders and global shipping support.

Tel: +86 15635685959

E-mail: [email protected]  

WhatsApp: +86 18912200505

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