UB (BS 4-1)

Source: SCI Blue Book (BS EN 10365:2017). Exact official matches: 58 of 61 records; unmatched records and fields remain unverified.

Not yet verified against an official manufacturer table — check before use.

BS 4-1:2005 · 61 sections

Free Reference Data

Universal Beams (UB) to BS 4-1:2005 are the primary British Standard I-section beams. Equivalent to European IPE/HEA/HEB sections, they are specified on projects following UK design codes and BS/EC dual-standard specifications.

Axes: y-y / z-z. Values from the shared section record; — means unavailable.

Reference values — verify against the current edition of the applicable standard or manufacturer's table before design use.

Section	A (cm²)	G (kg/m)	Major I (cm⁴)	Minor I (cm⁴)	Major elastic modulus (cm³)	Minor elastic modulus (cm³)
UB 127×76×13	16.5	13	473	55.7	74.6	14.7
UB 152×89×16	20.3	16	834	89.8	109	20.2
UB 178×102×19	24.3	19	1360	137	153	27
UB 203×102×23	29.4	23.1	2100	164	207	32.2
UB 203×133×25	32	25.1	2340	308	230	46.2
UB 254×102×22	28	22	2840	119	224	23.5
UB 254×102×25	32	25.2	3410	149	266	29.2
UB 254×102×28	36.1	28.3	4000	179	308	34.9
UB 254×146×31	39.7	31.1	4410	448	351	61.3
UB 254×146×37	47.2	37	5540	571	433	78
UB 254×146×43	54.8	43	6540	677	504	92
UB 305×102×25	31.6	24.8	4460	123	292	24.2
UB 305×102×28	35.9	28.2	5370	155	348	30.5
UB 305×102×33	41.8	32.8	6500	194	416	37.9
UB 305×152×37 Not yet verified against an official manufacturer table — check before use. value withheld pending verification	47	37	—	—	—	—
UB 305×152×42 Not yet verified against an official manufacturer table — check before use. value withheld pending verification	53.2	42	—	—	—	—
UB 305×152×49 Not yet verified against an official manufacturer table — check before use. value withheld pending verification	62	49	—	—	—	—
UB 305×165×40	51.3	40.3	8500	764	560	92.6
UB 305×165×46	58.7	46.1	9900	896	646	108
UB 305×165×54	68.8	54	11700	1060	754	127
UB 356×171×45	57.3	45	12100	811	687	94.8
UB 356×171×51	64.9	51	14100	968	796	113
UB 356×171×57	72.6	57	16000	1110	896	129
UB 356×171×67	85.5	67.1	19500	1360	1070	157
UB 406×178×54	69	54.1	18700	1020	930	115
UB 406×178×60	76.5	60.1	21600	1200	1060	135
UB 406×178×67	85.5	67.1	24300	1360	1190	153
UB 406×178×74	94.5	74.2	27300	1550	1320	172
UB 457×191×67	85.5	67.1	29400	1450	1300	153
UB 457×191×74	94.6	74.3	33300	1670	1460	176
UB 457×191×82	104	82	37100	1870	1610	196
UB 457×191×89	114	89.3	41000	2090	1770	218
UB 457×191×98	125	98.3	45700	2350	1960	243
UB 533×210×82	105	82.2	47500	2010	1800	192
UB 533×210×92	117	92.1	55200	2390	2070	228
UB 533×210×101	129	101	61500	2690	2290	256
UB 533×210×109	139	109	66800	2940	2480	279
UB 533×210×122	155	122	76000	3390	2790	320
UB 610×229×101	129	101.2	75800	2910	2520	256
UB 610×229×113	144	113	87300	3430	2870	301
UB 610×229×125	159	125.1	98600	3930	3220	343
UB 610×229×140	178	139.9	112000	4510	3620	391
UB 610×305×149	190	149.2	126000	9310	4110	611
UB 610×305×179	228	179	153000	11400	4930	743
UB 610×305×238	303	238.1	209000	15800	6590	1020
UB 686×254×125	159	125.2	118000	4380	3480	346
UB 686×254×140	178	140.1	136000	5180	3990	409
UB 686×254×152	194	152.4	150000	5780	4370	455
UB 686×254×170	217	170.2	170000	6630	4920	518
UB 762×267×147	187	146.9	169000	5460	4470	411
UB 762×267×173	220	173	205000	6850	5390	514
UB 762×267×197	251	196.8	240000	8170	6230	610
UB 838×292×176	224	175.9	246000	7800	5890	535
UB 838×292×194	247	193.8	279000	9070	6640	620
UB 838×292×226	289	226.5	340000	11400	7980	773
UB 914×305×201	256	200.9	325000	9420	7200	621
UB 914×305×224	286	224.2	376000	11200	8270	739
UB 914×305×253	323	253.4	436000	13300	9500	871
UB 914×305×289	368	289.1	504000	15600	10900	1010
UB 914×419×343	437	343.3	626000	39200	13700	1870
UB 914×419×388	494	388	720000	45400	15600	2160