Complete Guide to Stainless Steel Flanges: ASME B16.5, DIN, JIS Standards Compared
Choosing the right flange standard is critical for your project. Whether you are working on oil and gas pipelines, chemical processing equipment, or food industry applications, understanding the differences between ASME B16.5, DIN, and JIS standards can save you time, money, and potential safety issues.
Why Flange Standards Matter
Flanges are essential components in piping systems. The wrong standard can lead to incompatible connections, pressure rating mismatches, corrosion issues, and failed inspections.
ASME B16.5 Standard (North America)
- Pressure Classes: 150, 300, 400, 600, 900, 1500, 2500
- Size Range: NPS 1/2 inch to 24 inch
- Best for: Oil and gas, chemical processing, power generation
DIN Standard (Europe)
- Pressure Ratings: PN6, PN10, PN16, PN25, PN40, PN64, PN100
- Size Range: DN10 to DN2000
- Best for: European projects, food and beverage, pharmaceutical
JIS Standard (Japan/Asia)
- Pressure Ratings: 5K, 10K, 16K, 20K, 30K, 40K
- Size Range: 15A to 600A
- Best for: Shipbuilding, marine applications, Asian projects
Why Choose SongHai Flange
- Certified Quality: ASME, DIN, JIS compliant since 1994
- Custom Solutions: Non-standard sizes and materials
- Global Shipping: Export to 50+ countries
- Competitive Pricing: Direct from manufacturer
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