ASTM A350 LF3 Alloy Steel Slip-On Flanges 1/2" to 48" Size Range Sch160 Thickness
Price:
Negotiable
MOQ:
Negotiable
Delivery Time:
30 - 60 working days
Brand:
Kasugai
Product Description
Product Overview
ASTM A350 LF3 alloy steel slip-on flanges designed for low-temperature applications with superior notch toughness. Manufactured to ANSI B16.5/B16.47 standards with comprehensive testing and certification.
Technical Specifications
| Size Range | 1/2" to 48" |
|---|---|
| Pressure Classes | 75, 150, 300, 400, 600, 900, 1500, 2500 |
| Thickness Range | Sch10S to Sch160 |
| Standards | ASME/ANSI B16.5/B16.47, JIS B2220 |
| Flange Type | Slip-On (SO) |
| Surface Coatings | Anti-rust Paint, Oil Black Paint, Cold/Hot Dip Galvanized, Yellow Transparent, Zinc Plated |
| Applications | Offshore, Oil Field, Shipbuilding, Water Systems, Natural Gas, Pipe Projects, Electric Power |
Material Properties
Chemical Composition - ASTM A350 LF3
| Element | Content (%) |
|---|---|
| Carbon (C, max) | 0.2 |
| Manganese (Mn) | 0.90 |
| Silicon (Si) | 0.2-0.35 |
| Phosphorus (P, max) | 0.035 |
| Sulfur (S, max) | 0.040 |
| Chromium (Cr, max) | 0.30 |
| Molybdenum (Mo, max) | 0.12 |
| Copper (Cu, max) | 0.40 |
| Niobium (Nb, max) | 0.02 |
| Vanadium (V, max) | 0.03 |
Mechanical Properties
| Property | Value |
|---|---|
| Tensile Strength (min) | 485-655 MPa |
| Yield Strength (min) | 260 MPa |
| Elongation in 2" (min) | 30% |
| Reduction of Area (min) | 35% |
Low Temperature Performance
ASTM A350 LF3 features 3.5% nickel content that significantly improves low temperature notch toughness by reducing the brittle-ductile transition temperature.
Charpy V-Notch Impact Testing
- Testing Temperature: -150°F [-101°C]
- Class 1: Minimum average impact energy of 15 ft·lbf [20 J]
- Class 2: Minimum average impact energy of 20 ft·lbf [27 J]
- Individual specimen minimums: 12 ft·lbf [16J] for Class 1, 15 ft·lbf [20 J] for Class 2
Slip-On Flange Design
SO flanges feature an inner diameter slightly larger than the pipe outer diameter, allowing them to slip over pipes for connection via fillet welding at top and bottom surfaces. This design offers:
- Shorter length than weld neck flanges for space-constrained applications
- Cost-effective installation with lower initial investment
- Ideal for non-corrosive, moderate pressure services
- Commonly used in Class 150 and Class 300 utility engineering
Quality Assurance
- Testing Equipment: Direct-reading spectrograph, hydrostatic testing machine, X-ray detector, ultrasonic flaw detector, magnetic particle detector
- Certifications: Raw Materials Certificate, 100% Radiography Test Report, Third Party Inspection Report
Manufacturing Process
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Get in Touch
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Company
Kasugai Shanghai Co., Ltd.
Location
Rm.8415, Bldg. A8, No. 808 Hongqiao Road, Xuhui District, Shanghai 200030, Chia
Contact Person
Chovy kasugai