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Heat Treatment

For steel castings that require improved microstructure, enhanced service performance, and specific properties such as hardness, strength, toughness, wear resistance, machinability, or dimensional stability, heat treatment is a necessary and value‑adding process.
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Heat Treatment Process
Enhancing Microstructure & Service Performance

Heat treatment is applied to improve the microstructure and service performance of steel castings, enabling them to meet customer requirements for hardness, strength, toughness, wear resistance, machinability, and dimensional stability. The heat treatment plan must be confirmed in conjunction with the material grade, part geometry, service conditions, and subsequent machining requirements.

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Heat Treatment Process

Heat Treatment Capabilities

Annealing, Normalizing, Quenching & Tempering

Heat Treatment Process Primary Purpose Applicable Conditions Items to Confirm
Annealing Reduce hardness, improve machinability, relieve internal stress Steel castings requiring subsequent machining or reduced cracking risk Temperature, soaking time, cooling method, hardness range
Normalizing Refine microstructure, improve comprehensive mechanical properties Steel castings requiring improved structural stability, strength, and toughness Material standards, performance requirements, heat number records
Quenching Increase hardness and strength Wear-resistant or high-strength products Quenching medium, cooling rate, distortion control
Tempering Reduce brittleness, stabilize structure, improve toughness Products requiring hardness and toughness adjustment after quenching Tempering temperature, soaking time, hardness recheck
Quenching + Tempering Achieve stable combination of strength, hardness, and toughness Components with high load-bearing, wear resistance, or comprehensive performance requirements Material, performance standards, heat treatment curves, inspection reports

Heat Treatment Manufacturing Process

From technical requirement review to final inspection and delivery — a fully controlled process

01
Technical Requirement Review
02
Pre-treatment Inspection
03
Furnace Loading
04
Heating & Soaking
05
Controlled Cooling
06
Hardness & Property Testing
07
Final Inspection & Release

Process Control & Quality Assurance

Key process controls with batch traceability throughout production

Mesh Belt Furnace
Suitable for evaluating quenching, tempering, or thermal refining processes for small-to-medium batch cast steel parts
✓ Product dimensions · Batch size · Target hardness and heat treatment condition
Box Furnace
Suitable for evaluating annealing, normalizing, and other heat treatment processes for products of various specifications
✓ Furnace chamber dimensions · Temperature range · Loading method and distortion control
Hardness Testing
Used to verify hardness requirements after heat treatment

✓ Hardness unit · Test location · Acceptance range
Material, Mechanical Properties & NDT Package
Material, performance, and internal quality testing requirements can be confirmed on a project basis
✓ Standards · Sampling · Acceptance grade and reports

Customization & Inquiry Information

Three simple steps: what we customize → what you provide → what we deliver

01

Customization Scope

What we can customize for you

  • Construction Machinery Load-bearing Parts
  • Mining Wear-resistant Parts
  • Agricultural Machinery Load-bearing Parts
  • Drilling & Oilfield Parts
  • Valve & Pump Parts
  • Other Cast Steel Parts with Mechanical Property Requirements
02

Information You Provide

What we need from you to get started

  • Heat Treatment Condition
  • Target Hardness
  • Strength & Toughness Requirements
  • Performance Report
  • Distortion Control
  • Machining Allowance for Subsequent Processing
03

Quality Documents We Serve

What we deliver with every order

  • Material Grade & Standard
  • Drawings
  • Target Hardness or Performance
  • Service Conditions
  • Inspection Items & Report Format

Frequently Asked Questions

Common questions about heat treatment processes

When is normalizing required?
When customers need to improve the casting structure and stabilize comprehensive mechanical properties, a normalizing solution can be evaluated.
What does quenching + tempering achieve?
It provides a more stable combination of hardness, strength, and toughness. Specific parameters are confirmed based on material and service conditions.
Can international standards be followed?
Yes, projects can be evaluated according to ASTM, DIN, EN, JIS, GB, and other material and performance standards provided by customers.

Contact Us to Get Started

Xingcheng is a trusted global partner for high-quality castings and precision-machined components across industries.

Contact Us Now
Email info@xcsteelcasting.com Phone +86 15058818299
Address Chunhu Industrial Zone, Fenghua District,
Ningbo, Zhejiang Province, China
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