Carbon Steel Weld Neck Flange 6" 150# RF Sch40 ASTM A105 ASME B16.5
Carbon Steel Weld Neck Flange
Top quality manufacturer of forged fittings and flanges Zizi which supplies Carbon Steel Weld Neck Flange 6 Inch 150# Sch 40 ASTM A105 ASME B16.5 for Peru Market.
A weld neck flange is a type of flange which also known as a high-hub flange and tapered hub flange. They have two designs that regular and long weld neck flange. Since the inside diameter of the flange must match that of the pipe, the flange bore should be specified in ordering.
Class 150 Weld Neck Flange Dimensions
Size | 1/2" - 24" |
Pressure | Class 150, 300, 600, 900, 1500, 2500 |
Standard | ASME B16.5 |
Flange Types | Slip-on Flange, Weld Neck Flange, Blind Flange, Socket Weld Flange, Threaded Flange, Plate Flange, Lap Joint Flange |
Seal Types | RF, FF, RTJ |
Stainless Steel | ASTM A182 F304/304L, F316/316L, F321, F317,F310 |
Duplex Steel | ASTM A182 F51, F53, F5 |
Carbon Steel | ASTM A105N, A350 LF2/LF3 |
Alloy Steel | ASTM A182 F1, F5, F9, F11, F12, F22, F91 |

ASTM A105 Chemical Composition
C | Mn | P | S | Si | Cr | Ni |
0.35 | 0.6-1.1 | 0.035 | 0.04 | 0.1-0.35 | 0.3 | 0.4 |
ASTM A105 Mechanical Properties
Tensile Strength | Yield Strength | Elongation |
485 (Mpa) | 250 (Mpa) | 22 (%) |
Weld Neck Flange Weight Chart

Package of 6" Weld Neck Flange

- Marked with Grade, Lot No, Size, Standard and Pressure.
- Wrapped forged steel flanges with plastic foam.
- Packed ASTM A105 weld neck flanges into wooden cases or pallets.
- Tagged labers on the outside of the package for easy indentification.
Inspection of Low Pressure Flanges
- Visual the surface. Such as dents, die marks, porosity, undercuts.
- Check the marking. Such as size, material grade, pressure, heat no.
- Measure the size. Such as diameter,thickness of flange and raised face.
Advantage of Raised Flange
- Reasonable Price
- Good Quality
- Fast Delivery
- Safe Package
- Reliable Shipment