cBallast
Industrial Parts Catalog
Datasheet generated 2026-06-07
sales@cballast.com
cballast.com

ANSI B16.5 Welding Neck Flange 1-1/4" 300# A105 Carbon Steel

Generic · Pipes, Fittings & Flanges · Flanges
Part Number
B16.5-WN-1-1_4-300  ·  HS 7307.21
ANSI B16.5 Welding Neck Flange 1-1/4" 300# A105 Carbon Steel

ANSI B16.5 welding neck flange (WN) for 1-1/4" pipe at 300# class rating. ASTM A105 forged carbon steel body.

Technical Specifications

StandardASME B16.5
TypeWelding Neck (WN)
Nominal Size1-1/4"
Class300#
MaterialASTM A105 Forged Carbon Steel
FaceRaised Face (RF), Ra 3.2-6.3 μm
Max Working Pressure50 bar @ 38°C
Test Pressure1.5x rated
Temperature-29°C to +427°C

Properties

MaterialASTM A105 Carbon Steel
Pressure rating300# (50 bar)
Temperature range-29°C to +427°C
Primary standardASME B16.5
MOQ1

Standards

Approvals