Special Steel | Hollow Bar | ST52 Steel

HOLLOW BAR
ST52

Hollow Bar is a low Carbon Steel, features good machinability and weldability properties.
Often used in Mechanical Engineering, Construction, Automotive Machinery.

TYPICAL USES
Manufacturing of automotive parts, chemical & petrochemical plants, bushes, general engineering, paper & textile production plants, food production plants, and anti-friction & bearing production.

STEEL SPECIFICATION; St 52.0
(DEUTSCHE WERKSTOFF NUMBER 1.0421)
ROLLING TOLERANCES TO; Din 1629

MECHANICAL PROPERTIES
Tensile Strength; MPa minimum	520
Yield Stress; MPa minimum	310
Elongation, percent Min.	18
Brinell Hardness Number	180

CHEMICAL COMPOSITION
CARBON	≤ 0.22%
SILICON	≤ 0.55%
MANGANESE	≤ 1.60%
SULPHUR	≤ 0.04%
PHOSPHORUS	≤ 0.035%

HEAT TREATMENT
ANNEALING
NORMALISING
CARBURISE AND CASE HARDENING
WELDABILITY : WELDABILITY

ALL SIZES GIVEN IN MILLIMETRE.

O/D	I/D	W.T.	KG/M	O/D	I/D	W.T.	KG/M	O/D	I/D	W.T.	KG/M	O/D	I/D	W.T.	KG/M
32	16	8	5,20	95	50	12,5	43,20	160	90	35	108,10	250	150	50	268,10
36	16	10	7,00	95	63	16	34,20	160	100	30	97,40	250	160	45	250,51
40	20	10	8,10	95	75	10	23,10	160	112	24	82,10	250	180	35	197,10
40	25	7,5	6,40	100	56	22	45,10	160	132	14	57,10	250	200	25	153,10
45	20	12,5	11,00	102	71	15,5	34,71	170	100	35	120,50	267	150	58,5	330,20
45	28	8,5	8,80	100	80	10	24,10	170	118	26	98,50	267	167	50	292,80
50	25	12,5	12,60	106	56	25	52,10	170	140	15	62,10	267	187	40	235,10
50	32	9	10,50	106	63	21,5	49,50	180	100	40	145,20	267	217	25	163,80
56	28	14	16,00	106	71	17,5	41,50	180	112	34	128,53	273	173	50	299,10
56	36	10	8,80	106	80	13	32,10	180	125	27,5	115,10	273	193	40	241,32
56	40	8	10,70	112	63	24,5	55,20	180	140	20	79,40	273	201	36	219,10
63	32	15,5	20,00	112	71	20,5	46,26	180	150	15	67,50	273	227	23	156,32
63	40	11,5	16,00	112	80	16	41,40	190	106	42	158,10	298	198	50	338,10
63	45	9	13,50	112	90	11	30,10	190	112	39	152,48	298	228	35	254,10
63	50	6,5	25,40	118	63	27,5	64,40	190	118	36	140,10	298	242	28	208,10
71	36	17,5	25,40	118	71	23,5	55,90	190	132	29	124,10	308	210	49	331,74
71	45	13	21,00	118	80	19	48,10	190	140	25	106,60	325	225	50	356,10
71	56	7,5	13,00	118	90	14	39,50	190	150	20	99,40	325	240	42,5	313,84
75	40	17,5	26,00	125	71	27	68,50	190	160	15	73,40	325	254	35,5	268,64
75	45	15	22,20	125	80	22,5	60,10	200	112	44	184,10	325	273	26	203,21
75	50	12,5	21,50	125	90	17,5	50,50	200	140	30	130,50	355	255	50	400,80
75	60	7,5	14,00	125	100	12,5	38,50	200	160	20	100,10	355	275	40	337,40
80	40	20	32,00	132	71	30,5	80,40	212	125	43,5	196,30	355	291	32	283,10
80	45	17,5	29,40	132	90	21	62,80	212	150	31	153,30	355	305	25	221,10
80	50	15	25,50	132	106	13	43,10	212	160	26	128,50	355	315	20	180,10
80	63	8,5	17,00	140	80	30	83,50	212	170	21	109,10	375	275	50	424,76
89	45	22	33,30	140	90	25	73,20	224	125	49,5	223,65	375	280	47,5	404,90
89	55	17	26,50	140	100	20	64,80	224	132	46	217,10	406	306	50	471,10
90	50	20	37,10	140	112	14	49,10	224	160	32	167,10	406	326	40	391,10
90	63	13,5	27,20	150	80	35	102,50	224	180	22	119,30	406	336	35	339,42
90	71	9,5	20,90	150	90	30	90,10	236	140	48	239,10	406	342	32	342,10
				150	106	22	73,50	236	170	33	179,10	406	356	25	252,10
				150	116	17	58,54	236	190	23	133,30	457	357	50	541,10
				150	125	12,5	49,10					457	401	28	321,20

HOLLOW BARST52

HOLLOW BAR
ST52