Tube Bending and Fabrication

With the latest technology and equipment Alunox Advanced Tube Engineering are in the ideal position to be able to offer the flexibility and range of materials to meet your individual requirements including bespoke designs.

Metals available include Stainless Steel 304 and 321, Aluminium, Titanium Grade 2, Titanium Asnex, Inconel 625 and 718.

Both Titanium and Inconel are formed from flat sheet metal and are expertly rolled and seam welded to a high standard.

In order to offer you the very best service, we have a large range of mandrel tooling which allows us to produce your exact requirements in house. This also allows up to maintain quality and maintain stock availability.

Our up to date equipment allows us to bend the tube without compromising or wrinkling the tube during the process whilst offering the best consistency and weight at all times. This ensures that the hot exhaust gases can maintain their velocity and efficiency once attached to the vehicle.

Please refer to our Tube Bending Chart below for further information.

We fabricate tube to create:

• Turbo wastegate systems
• Brake and Power Steering Reservoirs
• Dry sumps
• Wet sump pans
• Oil catch tanks and reservoirs
• Intercoolers
• Radiators for race and fast road
• Roll cages
• Stair and handrails

Schedule Pipe Bending Chart

Nominal Bore		Centre Line Radius		Grip Length
MM	Inches	MM	Inches	MM	Inches
3.20	1/8	30.90	1 7/32	120	4 23/32
6.40	1/4	41.10	1 5/8	120	4 23/32
9.50	3/8	951.30	37 29/64	120	4 23/32
12.70	1/2	63.90	2 33/64	120	4 23/32
19.00	3/4	80.10	3 5/32	120	4 23/32
25.40	1	100.00	3 15/16	120	4 23/32
28.60	1 1/8	63.00	2 31 /64	120	4 23/32
28.60	1 1/8	126.00	4 61/64	120	4 23/32
38.10	1 1/2	144.00	5 43/64	80	4 23/32
38.10	1 1/2	38.10	1 1/2	80	3 5/32
38.10	1 1/2	50.80	2	80	3 5/32
38.10	1 1/2	57.15	2 1/4	120	3 5/32
38.10	1 1/2	38.10	1 1/2	120	4 23/32
38.10	1 1/2	63.50	2 1/2	150	4 23/32
38.10	1 1/2	72.00	2 53/64	120	4 23/32
38.10	1 1/2	76.20	3	120	4 23/32
38.10	1 1/2	101.60	4	150	5 29/32
38.10	1 1/2	114.30	4 1/2	120	4 23/32
50.80	2	50.80	2	120	4 23/32
50.80	2	76.20	3	120	4 23/32
50.80	2	90.44	4 3/16	120	4 23/32
50.80	2	101.60	4	120	4 23/32
50.80	2	120.60	4 3/4	120	4 23/32
50.80	2	127.00	5	120	4 23/32
50.80	2	152.40	6	120	4 23/32
50.80	2	180.00	7 3/32	120	4 23/32
63.50	2 1/2	63.50	2 1/2	140	5 33/64
63.50	2 1/2	95.10	3 3/4	140	5 33/64
63.50	2 1/2	126.20	4 31/32	140	5 33/64
63.50	2 1/2	228.00	8 31/32	120	4 23/32
76.20	3	76.20	3	140	5 33/64
76.20	3	95.25	3 3/4	140	5 33/64
76.20	3	114.30	4 1/2	140	5 33/64
76.20	3	152.40	6	140	5 33/64
76.20	3	266.70	10 1/2	120	4 23/32

Exhaust Tube Bending Chart

Tube OD		Centre Line Radius		Grip Length
MM	Inches	MM	Inches	MM	Inches
12.70	1/2	54.00	2 1/8	80	3 5/32
15.88	5/8	40.00	1 37/64	80	3 5/32
15.88	5/8	55.00	2 11/64	80	3 5/32
15.90	5/8	60.00	2 23/64	80	3 5/32
19.00	3/4	50.00	1 31/32	80	3 5/32
19.05	3/4	35.00	1 3/8	80	3 5/32
21.30	27/32	47.60	1 7/8	80	3 5/32
25.40	1	50.00	1 31/32	100	3 15/16
27.90	1 3/32	42.00	1 21/32	120	4 23/32
31.80	1 1/4	63.60	2 1/2	100	3 15/16
33.30	1 5/16	100.00	3 15/16	100	3 15/16
35.00	1 3/8	50.00	1 31/32	120	4 23/32
35.00	1 3/8	70.00	2 3/4	100	3 15/16
38.10	1 1/2	38.10	1 1/2	80	3 5/32
38.10	1 1/2	50.80	2	80	3 5/32
38.10	1 1/2	57.15	2 1/4	80	3 5/32
38.10	1 1/2	38.10	1 1/2	120	4 23/32
38.10	1 1/2	63.50	2 1/2	150	5 29/32
38.10	1 1/2	76.20	3	120	4 23/32
38.10	1 1/2	101.60	4	150	5 29/32
38.10	1 1/2	114.30	4 1/2	120	4 23/32
41.27	1 5/8	50.80	2	150	5 29/32
41.27	1 5/8	101.60	4	150	5 29/32
41.30	1 5/8	41.27	1 5/8	120	4 23/32
41.30	1 5/8	61.90	2 7/16	80	3 1/8
41.30	1 5/8	76.20	3	120	4 23/32
42.20	1 21/32	50.80	2	150	5 29/32
42.20	1 21/32	61.90	2 7/16	120	4 23/32
42.20	1 21/32	63.60	2 1/2	80	3 5/32
44.45	1 3/4	44.45	1 3/4	120	4 23/32
44.45	1 3/4	50.80	2	150	5 29/32
44.45	1 3/4	66.60	2 5/8	80	3 5/32
44.45	1 3/4	76.20	3	120	4 23/32
44.45	1 3/4	76.30	3	150	5 29/32
44.45	1 3/4	101.00	3 31/32	120	4 23/32
44.45	1 3/4	127.00	5	150	5 29/32
44.45	1 3/4	133.35	5 1/4	120	4 23/32
44.45	1 3/4	152.00	5 63/64	150	5 29/32
47.60	1 7/8	47.60	1 7/8	120	4 23/32
47.60	1 7/8	71.40	2 13/16	120	4 23/32
48.26	1 29/32	48.26	1 29/32	150	5 29/32
48.26	1 29/32	52.15	2 1/14	150	5 29/32
48.26	1 29/32	76.30	3	150	5 29/32
48.30	1 9/10	72.42	2 27/32	120	4 23/32
48.30	1 9/10	96.00	3 25/32	120	4 23/32
50.80	2	50.80	2	120	4 23/32
50.80	2	76.20	3	120	4 23/32
50.80	2	101.60	4	120	4 23/32
50.80	2	127.00	5	120	4 23/32
50.80	2	152.40	6	120	4 23/32
54.00	2 1/8	54.00	2 1/8	120	4 23/32
54.00	2 1/8	81.00	3 3/16	120	4 23/32
54.00	2 1/8	108.00	4 1/4	120	4 23/32
57.20	2 1/4	57.20	2 1/4	160	6 19/64
57.20	2 1/4	85.50	3 23/64	140	5 33/64
57.20	2 1/4	114.00	4 31/64	140	5 33/64
60.20	2 3/8	60.20	2 3/8	160	6 19/64
60.20	2 3/8	90.00	3 35/64	140	5 33/64
60.20	2 3/8	120.00	4 23/32	140	5 33/64
63.50	2 1/2	63.50	2 1/2	140	5 33/64
63.50	2 1/2	95.10	3 3/4	140	5 33/64
63.50	2 1/2	126.20	4 31/32	140	5 33/64
65.00	2 9/16	65.00	2 9/16	150	5 29/32
65.00	2 9/16	81.20	3 13/64	150	5 29/32
65.00	2 9/16	97.50	3 27/32	150	5 29/32
69.90	2 3/4	112.00	4 7/16	140	5 33/64
76.20	3	76.20	3	140	5 33/64
76.20	3	95.25	3 3/4	140	5 33/64
76.20	3	114.30	4 1/2	140	5 33/64
76.20	3	152.40	6	140	5 33/64
80.00	3 5/32	80.00	3 5/32	200	7 7/8
80.00	3 5/32	100.00	3 15/16	200	7 7/8
80.00	3 5/32	120.00	4 23/32	200	7 7/8
88.90	3 1/2	114.30	4 1/2	200	7 7/8
101.60	4	151.50	5 5/16	200	7 7/8