If you’re on the hunt for high-quality 1.2738 Steel Flat Bar, you’re in the right place. This guide will break down everything you need to know about this versatile alloy steel, from its standards and properties to sourcing tips and pricing information. Whether you’re a seasoned professional or new to the steel industry, we aim to provide valuable insights and answers to your questions.

What is 1.2738 Steel Flat Bar?

1.2738 Steel Flat Bar, also known as AISI P20+Ni, is a popular alloy steel grade. It’s widely used in the mold and tool industry due to its excellent machinability, toughness, and uniform hardness. This steel is highly regarded for its ability to withstand high temperatures and stress, making it a reliable choice for demanding applications.

Chemical Composition

Understanding the chemical composition  is crucial for its application. Here’s a breakdown:

Element Composition (%)
Carbon (C) 0.37 – 0.43
Silicon (Si) 0.20 – 0.40
Manganese (Mn) 1.30 – 1.60
Chromium (Cr) 1.80 – 2.10
Molybdenum (Mo) 0.15 – 0.25
Nickel (Ni) 0.90 – 1.20

The balanced composition ensures that 1.2738 steel maintains its properties under various working conditions.

Standards and Specifications

1.2738 Steel Flat Bar adheres to several international standards, ensuring its quality and reliability. Some of the most recognized standards include:

  • DIN 1.2738
  • AISI P20+Ni
  • GB 3Cr2NiMo

These standards guarantee that the steel meets the necessary criteria for hardness, strength, and durability, making it suitable for a wide range of applications.

Key Properties

This material boasts several properties that make it a preferred choice in various industries:

  1. Hardness: Pre-hardened to approximately 280-325 HB (Brinell Hardness).
  2. Machinability: Excellent, making it easy to machine and shape.
  3. Toughness: High toughness, essential for withstanding heavy loads and stress.
  4. Uniformity: Consistent hardness throughout, which is crucial for large mold applications.
  5. Polishability: Can achieve a high surface finish, making it ideal for aesthetic mold designs.

Applications

Given its robust properties, this material is used in several critical applications, including:

  1. Plastic Molds: Its uniform hardness and high polishability make it perfect for plastic mold manufacturing.
  2. Die Casting: With its excellent toughness, it’s used for die-casting molds that endure high temperatures.
  3. Automotive Industry: Utilized in making components that require precision and durability.
  4. General Engineering: Suitable for a variety of engineering projects that need high-strength steel.

Available Sizes

1.2738 Steel Flat Bar comes in various sizes to meet different project needs. Standard sizes typically range from:

Thickness (mm) Width (mm) Length (mm)
20 – 300 200 – 610 2000 – 6000 (custom lengths available)

Custom sizes can also be manufactured based on specific project requirements.

Pricing Information

The price of 1.2738 Steel Flat Bar can vary based on several factors, including size, quantity, and market conditions. Generally, prices range from $1,500 to $2,500 per ton. For the most accurate and up-to-date pricing, it’s best to contact suppliers directly. At Dongguan Otai Special Steel, we offer competitive pricing and exceptional customer service to meet your steel needs.

How to Source the Best Suppliers

Finding a reliable supplier for 1.2738 Steel Flat Bar is crucial for ensuring quality and timely delivery. Here are some tips to help you source the best suppliers:

  1. Reputation: Look for suppliers with a strong reputation and positive reviews in the industry.
  2. Certifications: Ensure the supplier is certified and adheres to international standards.
  3. Experience: Choose suppliers with extensive experience in the steel industry.
  4. Customer Service: Evaluate their customer service to ensure they are responsive and helpful.
  5. Quality Assurance: Check if they offer quality assurance and testing for their products.

At Dongguan Otai Special Steel, we pride ourselves on being a trusted supplier of high-quality 1.2738 Steel Flat Bar. Our commitment to excellence and customer satisfaction sets us apart in the industry.

Conclusion

1.2738 Steel Flat Bar is an exceptional alloy steel that offers a balance of toughness, machinability, and uniform hardness. Whether you’re in the mold-making, die-casting, automotive, or general engineering industry, this steel grade is designed to meet your needs. For high-quality 1.2738 Steel Flat Bar, competitive pricing, and excellent customer service, contact Dongguan Otai Special Steel. Send your inquiries to elwa@otaisteel.com or reach out via WhatsApp at +86 158 9967 5236.

FAQs

  1. What are the main uses ?

    It’s primarily used in plastic molds, die casting, automotive components, and general engineering due to its robust properties.

  2. How is the price of 1.2738 Steel Flat Bar determined?

    Pricing varies based on size, quantity, and market conditions. Contact suppliers for the most accurate quotes.

  3. Can it be customized?

    Yes, it can be manufactured in custom sizes to meet specific project requirements.

  4. What standards does 1.2738 adhere to?

    It adheres to standards such as DIN 1.2738, AISI P20+Ni, and GB 3Cr2NiMo, ensuring high quality and reliability.

  5. How can I ensure I’m sourcing from a reliable supplier?

    Look for suppliers with a strong reputation, certifications, extensive experience, excellent customer service, and quality assurance.