630 Stainless Steel Flat Bar

The 630 Stainless Steel Flat Bar, also known as 17-4PH, represents one of the most versatile high-strength stainless steel flat bar products in the market. As a precipitation-hardened grade within the 600 series Martensitic Precipitation Hardening Alloys, this material combines exceptional strength with superior durability. Manufactured to ASTM A564 specifications, these flat bars deliver outstanding performance across demanding applications.

Technical Characteristics and Applications of 630 Stainless Steel Flat Bar

The 630 Stainless Steel Flat Bar offers a unique combination of properties:

Key Features:

• High tensile strength (900-1000MPa in H1150D condition)
• Excellent elongation (typically +20%)
• Superior corrosion resistance
• Enhanced heat treatment capability
• Precision ground finish available

Material Properties:

• Combines martensitic strength with austenitic corrosion resistance
• Achieves high strength through precipitation hardening
• Features finely dispersed carbides in the material matrix
• Available in H1150D condition for optimal performance

Primary Applications:

• Oil and gas industry equipment
• Aerospace components
• Precision engineering parts
• High-stress structural applications
• Alternative to Grade 431 in specific applications

The stainless steel flat bar in grade 630 undergoes specialized heat treatment processes that enhance its mechanical properties while maintaining excellent corrosion resistance. This makes it particularly suitable for applications requiring both strength and durability in challenging environments.