Stainless clad steel plate and producing method thereof
A stainless clad steel plate with controlled chemical compositions and thermal treatment addresses the challenge of high-strength, stress corrosion resistance, and low-temperature toughness for large liquefied ammonia tanks, ensuring structural integrity and preventing delamination.
Patent Information
- Application Number
- JP2024037825
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2024-03-12
- Publication Date
- 2025-09-26
AI Technical Summary
Existing methods fail to provide high-strength stainless clad steel plates with excellent stress corrosion cracking resistance and low-temperature toughness suitable for large liquefied ammonia tanks, particularly those exceeding 590 MPa, without requiring special equipment or compromising the integrity of the clad material.
A stainless clad steel plate composition with specific chemical elements and manufacturing process, including a base material and clad material with controlled carbon content and thermal treatment, ensuring a yield strength of 620 MPa or more and tensile strength of 700 MPa or more, along with enhanced shear strength to prevent delamination.
The solution provides a high-strength stainless clad steel plate with excellent stress corrosion cracking resistance and low-temperature toughness, suitable for large cryogenic tanks, maintaining structural integrity and preventing peeling at the clad interface.