150LB Stainless Steel Flange

150-Pound Pressure Rated Flanges for Industrial Piping Systems SSM manufactures ASME B16.5 compliant 150LB stainless steel flanges designed for low-to-medium pressure applications across oil & gas, chemical processing, and water treatment industries. Our flanges are available in 304, 316,...

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Product Introduction

150-Pound Pressure Rated Flanges for Industrial Piping Systems

SSM manufactures ASME B16.5 compliant 150LB stainless steel flanges designed for low-to-medium pressure applications across oil & gas, chemical processing, and water treatment industries. Our flanges are available in 304, 316, and 316L grades with full material traceability.

150LB Flange Specifications

1. Technical Parameters

Specification	Details
Pressure Rating	150 psi at 100°F (275 psi at ambient)
Size Range	½" to 24" (DN15 to DN600)
Temperature Limit	-20°F to 850°F (-29°C to 454°C)
Face Types	Raised Face (RF), Flat Face (FF), Ring Joint (RTJ)
Material Grades	ASTM A182 F304/F304L, F316/F316L

2. Dimensional Standards

Feature	Tolerance
Outside Diameter	±1.5mm
Bolt Circle	±0.8mm
Thickness	+3mm/-0.5mm
Face Flatness	0.05mm per 25mm

3. Pressure-Temperature Ratings

Temp (°F)	Max Pressure (psi)
100	275
200	250
300	230
400	210

Manufacturing Process

Quality Production Steps

Material Selection - ASTM A182 certified stainless steel

Forging - Closed-die hammer forging

Heat Treatment - Solution annealing (1050-1100°C)

Machining - CNC precision machining

Surface Finish - Pickled & passivated

Quality Assurance

100% dimensional verification

Positive Material Identification (PMI)

Hydrostatic testing (optional)

Liquid penetrant testing

Full ASTM material certification

Available Configurations

Flange Types

Weld Neck - For high-integrity connections

Slip-On - For easy installation

Blind - For pipe end closures

Threaded - For maintenance points

Lap Joint - For systems requiring disassembly

Material Options

304 (general purpose)

316 (acid/chemical resistance)

316L (welded applications)

Special alloys available

Industry Applications

Common Uses

• Process piping systems
• Pump and valve connections
• Heat exchanger piping
• Water treatment plants
• Food processing lines

Why Choose SSM 150LB Flanges?

✔ Full ASME B16.5 Compliance
✔ Competitive Pricing - Direct manufacturer rates
✔ Quick Delivery - Standard sizes in stock
✔ Technical Support - Material selection assistance

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