303 Stainless Steel By wilsonpipeline.com

303 stainless steel is the most readily machineable of all the austenitic grades of stainless steel.

303 stainless steel owes its machineable nature to the presence of Sulphur in the composition. However, it should be noted that the Sulphur also decreases the corrosion resistance of the steel and slightly lowers its toughness. The toughness is still excellent as with other austenitic grades. AISI 304 stainless steel offer higher corrosion resistance than 303.

BS 970 1991	AISI/SAE	Werkstoff
303S31	303	1.4305

303 Stainless Steel Products
303 stainless steel round bars – Bright Drawn – Smooth Turned – Bright Ground – Rough Turned 303 stainless steel flanges	303 stainless steel tubes & pipes – 303 stainless steel round pipe – 303 stainless steel tubes

Stainless Steel Round bars 303S31 (1.4305) Bright Drawn

Dia	Weight	Dia	Weight
(mm)	per metre (kg)	(in)	per metre (kg)
3mm	0.06	1/8″	0.06
4mm	0.10	3/16″	0.14
5mm	0.16	1/4″	0.25
6mm	0.22	5/16″	0.39
7mm	0.30	3/8″	0.56
8mm	0.40	7/16″	0.77
10mm	0.62	1/2″	1.00
12mm	0.89	9/16″	1.22
14mm	1.22	5/8″	1.56
15mm	1.40	11/16″	1.89
16mm	1.59	3/4″	2.25
18mm	2.01	7/8″	3.07
20mm	2.48	1″	4.03
22mm	3.00
24mm	3.57
25mm	3.88
Stainless Steel Supplier – Steel Express

Stainless Steel Round Bars 303S31 (1.4305)
Smooth Turned/ *Bright Ground

Dia	Weight	Dia	Weight
(mm)	per metre (kg)	(in)	per metre (kg)
25mm*	3.88	1″	4.03
30mm*	5.58	1 1/8 “	5.07
35mm	7.60	1 1/4 “	6.25
40mm*	9.93	1 3/8″	7.57
45mm	12.56	1 1/2″	9.01
60mm	22.30	1 5/8″	10.60
50mm*	15.50	1 3/4″	12.20
		1 7/8″	14.10
		2″	16.00
		2 1/8″	18.10
		2 1/4″	20.30
		2 3/8″	22.60
		2 1/2	25.00
		2 5/8″	27.60
		2 3/4″	30.30
		3″	36.00

Stainless Steel Round Bars 303S31 (1.4305)

Rough Turned

Dia	Weight	Dia	Weight
(in)	per metre (kg)	(in)	per metre (kg)
3 1/4″	42.90	4 3/4″	91.70
3 1/2″	49.80	5″	102.00
3 3/4″	57.10	5′ 1/2	123.00
4″	65.00	6″	146.00
4 1/4″	73.40	7″	199.00
4 1/2	82.30

Source: wilsonpipeline Pipe Industry Co., Limited (www.wilsonpipeline.com)

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