Welcome to Yeow Hwa Engineering Pte Ltd

Pipe Bending Division
	Our Induction Bending Division covers full ranges of shapes and material specification such as square bars, I-Beam and various pipe sizes.
	With our latest CNC or Computerized Induction Bending machine, our capacity covers a large range of diameter tailored to the required curvatures and material specifications.
	All induction bends are subjected to stringent inspection such as Thinning, Out-of- Roundness and Radius Check before delivery to the customers.
	Our products have attained the high standard requirement of ANSI B31.1, B31.3, B31.4, B31.8, B16.49, DNV OSF101 and even the oil and gas companies' requirement such as ExxonMobil, BP, Shell, Total and Chevron.

Induction Pipe Bending Machine Capabilities
	PB250 Max Dia 16", Max Thickness 40mm
	PB350 Max Dia 20", Max Thickness 50mm
	PB450 Max Dia 36", Max Thickness 50mm
	PB1000 Max Dia 50", Max Thickness 75mm

Cold Bending Machine Capacity
	IHI PB6 (Rotary Draw Bender) Max 6", Max Thickness Sch 80
	Davmar (Pipe Roll) Max 8", Max Thickness Sch 80
	Roundo R13-S (Pipe Roll) Max 16", Max Thickness Sch 80

Standard Tolerances
	Bend Angle ± 1°
	Bend Radius ± 1%
	Plane of Bend ± 1 degree
	Flat Plane of Bend ± 1% of radius measured at pipe centerline
	Thinning -8% for 5D, -12.5% for 3D
	Ovality at Ends ± 1% of outside diameter
	Ovality Throughout Bend 2.5% for 5D, 3% for 3D

Wall Thinning vs Radius


Material
	Carbon Steel
	Chrome Moly Steels
	Stainless Steels
	Nickel Alloys
	Copper and Copper Alloys
	Alloy Steels