ISO · EN ISO 1127

EN ISO 1127 Standard: Stainless Steel Pipe Dimensions Specification

Technical regulation EN ISO 1127 for stainless steel pipes

The EN ISO 1127 standard is a key regulatory document defining the geometric parameters of pipes made from stainless alloys. The regulation specifies nominal values for outer diameters, wall thicknesses, limit deviations (tolerances), and the calculated theoretical mass per linear meter of the product. This standard ensures product unification, which is critical for designing pipeline systems and selecting metal products within the EV Group China lineup.

Outer diameter, mm Series		1				10.2			13.5			17.2				21.3								33.7				42.4		48.3				60.3			76.1		88.9		114.3	139.7	68.3	219.1	273	323.9	355.6	406.4	457	508	610
Outer diameter, mm Series		2	6	8	10		12	12.7			16			19	20			25		26.9		31.8	32			38	40				51		57		63.5	70				101.6
Outer diameter, mm Series		3								14			18				22		25.4		30				35				44.5			54						82.5
Thickness, mm	1.0	Standard values of nominal mass per unit length, kg/m	0.125	0.176	0.225	0.230	0.275	0.293	0.313	0.326	0.376	0.406	0.425	0.451	0.476	0.509	0.526	0.601		0.649				0.818						1.25		1.25
Thickness, mm	1.2	Standard values of nominal mass per unit length, kg/m	0.144	0.204	0.264	0.270		0.345	0.369	0.445		0.445		0.535	0.564			0.715	0.727			0.920	0.925	0.976	1.02	1.11	1.17			1.49		1.49
Thickness, mm	1.6	Standard values of nominal mass per unit length, kg/m				0.344	0.416	0.445	0.477	0.496	0.577	0.625	0.657	0.697	0.737	0.789		0.937	0.953	1.01	1.14	1.21		1.29		1.46	1.54	1.63		1.87	1.98	2.10	2.22	2.35	2.48	2.74	2.98	3.49		3.49	4.52	5.53	6.68
Thickness, mm	2.0	Standard values of nominal mass per unit length, kg/m				0.410	0.500	0.536	0.576	0.601	0.701	0.761	0.801	0.851	0.901	0.966	1.00	1.15	1.17	1.25	1.40	1.49	1.50	1.58	1.65	1.81				2.31	2.46	2.60	2.75	2.92	3.08	3.40	3.70	4.03	4.35	4.98	5.62	6.89	8.32	10.9	13.6
Thickness, mm	2.3	Standard values of nominal mass per unit length, kg/m						0.599	0.645			0.858												1.81						-		-	3.34		3.34		4.25		4.98
Thickness, mm	2.6	Standard values of nominal mass per unit length, kg/m						0.658	-							1.22		1.46	1.48	1.58		1.90		2.02		2.30				2.97	3.15	3.35		3.76	3.96		4.78		5.61		7.27	8.92	10.8	14.1	17.6	20.9	22.9	26.3
Thickness, mm	2.9	Standard values of nominal mass per unit length, kg/m						0.711	0.789											1.75										-		-	3.93	4.17		4.87	5.32		6.24	7.17	8.09
Thickness, mm	3.2	Standard values of nominal mass per unit length, kg/m						0.761				1.12				1.45				1.90		2.29		2.45		2.79				3.61	3.83			4.58	4.83			6.35	6.86			11.0	13.2	17.3	21.6	25.7	28.2	32.3	36.3	40.4	48.6
Thickness, mm	3.6	Standard values of nominal mass per unit length, kg/m																												4.03	-		5.11		5.11		6.54		7.68		9.98			19.4	24.3					5.5
Thickness, mm	4.0	Standard values of nominal mass per unit length, kg/m														1.74				2.29		2.78								-		-	5.83		5.83		7.22		8.51	9.77		13.6	16.4	21.5	26.9	32.1	35.2	40.3	45.4		60.7
Thickness, mm	4.5	Standard values of nominal mass per unit length, kg/m																						3.29						-		-									12.4		18.5			35.9
Thickness, mm																								3.29						-		-									12.4		18.5			35.9
Thickness, mm																								3.29						-		-									12.4		18.5			35.9
Thickness, mm																								3.29						-		-									12.4		18.5			35.9
Thickness, mm																								3.29						-		-									12.4		18.5			35.9
Thickness, mm																								3.29						-		-									12.4		18.5			35.9
Thickness, mm																								3.29						-		-									12.4		18.5			35.9
Thickness, mm																								3.29						-		-									12.4		18.5			35.9
Thickness, mm																								3.29						-		-									12.4		18.5			35.9
Thickness, mm																								3.29						-		-									12.4		18.5			35.9
Thickness, mm																								3.29						-		-									12.4		18.5			35.9

Outer diameter, mm Series		1	42.4		48.3	60.3	76.1	88.9	101.6	114.3	139.7	168.3	219.1	273	323.9	355.6	406.4	457	508	610	711	813	914	1016
Outer diameter, mm Series		2
Outer diameter, mm Series		3		44.5
Thickness, mm	5.0	Standard values of nominal mass per unit length, kg/m	4.68		5.42		8.90				16.8	20.4			39.9	43.8	50.2	56.5	62.9
Thickness, mm	5.6	Standard values of nominal mass per unit length, kg/m				7.66		11.7	13.5										70.4	84.8
Thickness, mm	6.3	Standard values of nominal mass per unit length, kg/m								17.1	21.0		33.6	42.0						95.2
Thickness, mm	7.1	Standard values of nominal mass per unit length, kg/m					12.3				23.5	28.6			56.3						125
Thickness, mm	8.0	Standard values of nominal mass per unit length, kg/m						16.2	18.8				42.2									161
Thickness, mm	8.8	Standard values of nominal mass per unit length, kg/m								23.2													199
Thickness, mm	10.0	Standard values of nominal mass per unit length, kg/m									32.5			65.9	78.6	86.5	99.3	112						252
Thickness, mm	11.0	Standard values of nominal mass per unit length, kg/m										43.3				94.9			137
Thickness, mm	12.5	Standard values of nominal mass per unit length, kg/m											64.7	81.5	97.4	108	123	139	155	187
Thickness, mm	14.2	Standard values of nominal mass per unit length, kg/m												92.0				157	176	112
Thickness, mm		Standard values of nominal mass per unit length, kg/m
Thickness, mm		Standard values of nominal mass per unit length, kg/m
Thickness, mm		Standard values of nominal mass per unit length, kg/m
Thickness, mm		Standard values of nominal mass per unit length, kg/m
Thickness, mm		Standard values of nominal mass per unit length, kg/m
Thickness, mm		Standard values of nominal mass per unit length, kg/m
Thickness, mm		Standard values of nominal mass per unit length, kg/m
Thickness, mm		Standard values of nominal mass per unit length, kg/m
Thickness, mm		Standard values of nominal mass per unit length, kg/m
Thickness, mm		Standard values of nominal mass per unit length, kg/m
		Standard values of nominal mass per unit length, kg/m