Looking for a reliable supplier of HR 4140 Stainless Steel Plate? You’re in the right place.

At Otai Special Steel, we’re proud to be the #1 supplier of HR 4140 plates in China. Whether you’re in automotive, aerospace, heavy machinery, or tooling, we’ve got exactly what you need.

1, What Makes HR 4140 Stainless Steel Plate the Industry Favorite?

HR 4140 stainless plate is a medium-carbon alloy steel known for its exceptional strength and versatility. It’s the go-to material for industries demanding toughness, wear resistance, and precision.

HR 4140 Stainless Steel Plate for mexico

Key Benefits:

  • Exceptional Strength: Ideal for heavy-load applications, ensuring reliability under pressure.
  • Wear Resistance: Reduces maintenance and replacement costs.
  • Heat Treatment Flexibility: Easily customized for hardness, toughness, or machinability.

Whether you need raw plates or pre-finished pieces, HR 4140 plate fits the bill for a variety of applications.

2, The Common Challenges Customers Face for 4140 HR Plate

Sourcing HR 4140 plates comes with its challenges. Many suppliers fail to meet expectations with:

  • Inconsistent Quality: Leading to wasted resources and downtime.
  • Long Lead Times: Disrupting production schedules.
  • Limited Customization: Adding to machining time and costs.

Sound familiar? We’re here to eliminate these headaches for you.

3, Why Otai Special Steel is Your Go-To Supplier

At Otai Special Steel, we understand your concerns, and we’ve designed our services to exceed your expectations. Here’s how:

1. Massive Stock, Fast Delivery

  • We maintain one of the largest inventories (more than 10000 tons ) of HR 4140 plates in China. With thicknesses ranging from 6mm to 300mm, we’ve got sizes to suit any project. And most sizes are available for fast shipment.
  • Orders under 50 tons can be delivered within 5-7 days. Larger orders are partially shipped within around 30-40 days to ensure timely supply.

2. Unmatched Quality Assurance

  • Every plate is tested for chemical composition, ultrasonic integrity, and hardness to meet the strictest ASTM or DIN standards.
  • Inspection certificates and third-party verification (e.g., SGS) are available together with shipping documents.

3. Customized Solutions

  • Need specific dimensions? Our advanced cutting and milling machines ensure your plates are delivered with precise tolerances or toughness.
  • Require specific mechanical properties? Although we have two different condition 4140 HR plate in stock, either annealed or QT condition, we also offer heat treatment options like quenching, tempering, and annealing, to achieve different hardness and properties demand.

4. Global Shipping Expertise

  • No matter where you’re located, we handle all logistics for fast, damage-free delivery. Each plate is rust-proofed and carefully packaged, with wooden crates available upon request.

4, How One Customer in Mexico Solved Their Supply Issues at Otai

A customer in Mexico Mr Armando needed high-quality HR 4140 Stainless Steel Plates for their manufacturing needs. But he told he struggled with delays and substandard materials from local suppliers. Switching to Otai Special Steel transformed their operations.

We supplied precision-milled plates with tolerances of ±0.02″ in just 20 days. This not only reduced their production downtime but also saved costs by eliminating unnecessary machining steps. That’s the Otai difference—reliable, fast, and cost-effective.

We Prioritize Your Success

At Otai, our goal is to be more than just a supplier—we aim to be a partner in your success. From ensuring consistent quality to providing technical support, we’re here to help you every step of the way.

Get in Touch Today!

Ready to experience the reliability and quality of HR 4140 Stainless Steel Plate?

Don’t wait—reach out to us today for a quote or to discuss your specific requirements. We’re confident we’ll be your best choice.

FAQs About HR 4140 Stainless Steel Plate

1. What sizes do you stock?
Our plates range from 6mm to 300mm in thickness, with customizable dimensions, as we are equipped with 17 cutting machines.

2. Can you deliver heat-treated plates?
Absolutely! We offer annealing, quenching, and tempering services to meet your exact needs about hardness and properties.

3. How quickly can you deliver?
Orders under 50 tons are typically delivered within 5-7 days. Larger shipments may take 30-40 days in partial shipments.

4. Which industries use HR 4140 plates?
Industries like automotive, aerospace, heavy machinery, and tooling rely heavily on ASTM HR 4140 plates.

5. Do you offer quality certification?
Yes, all plates come with inspection certificates (MTC), and third-party testing (e.g., SGS) is available on request.

Choose Otai Special Steel for dependable, high-quality HR 4140 plates—and let us help you keep your production running smoothly.