Properties

Steels for pressure vessels and boilers differ from other carbon-manganese structural steels due to their high resistance to pressure at all temperatures (ambient, low or high).

Advantages

The fundamental property of steels for pressure vessels is their ability to withstand high pressure at different temperatures. They have good weldability, as well as excellent toughness, and are suitable for normalisation annealing and stress-relief annealing (both treatments neutralise local hardening caused by welding).

Applications

Steels for pressure vessels are mainly used to manufacture boilers, drums, pressure or steam piping, industrial thermal vessels and heat exchangers. These steels are suitable for mechanical forming and welding.

Available options

Options available after previous agreement for the different groups of grades:

 

European standards

• Vacuum degassing
• Reduced CEV
• Product analysis
• PWHT on test specimens
• Charpy impact test in transverse direction
• High temperature tensile test
• Ultrasonic testing
• Improved deformation properties perpendicular to the surface of the product as per EN 10164 (Z test)
• Bending test
• Sour services 

 

ASTM A204

• Vacuum degassing
• PWHT on test specimens
• Charpy impact test
• High temperature tensile test

 

ASTM A285

• Product delivered normalised
• PWHT on test specimens
• Bending test
• Copper content between 0.20 and 0.35%

 

ASTM A515

• Vacuum degassing
• Austenitic grain size
• Product analysis
• PWHT on test specimens
• Charpy impact test
• High temperature tensile test
• Ultrasonic testing
• Bending test

 

ASTM A516

• Vacuum degassing
• Austenitic grain size
• Product analysis
• PWHT on test specimens
• Charpy impact test
• High temperature tensile test
• Ultrasonic testing
• Bending test

 

ASTM A537

• Vacuum degassing
• Product analysis
• PWHT on test specimens
• Charpy impact test
• High temperature tensile test
• Ultrasonic testing
• Bending test

Brand correspondence

Pressure vessel plates, heat treated, in carbon-manganese-silicon steel (ASTM A537)
	EN 10028-2:2009	EN 10028-3:2009	EN 10207:2005	EN 10207:1991	ASTM	JIS G3115
A537 cl.1
Pressure vessel plates, in carbon steel, for intermediate- and high-temperature service (ASTM A515)
	EN 10028-2:2009	EN 10028-3:2009	EN 10207:2005	EN 10207:1991	ASTM	JIS G3115
A515 gr.60
A515 gr.65
A515 gr.70
Pressure vessel plates, in carbon steel, for intermediate- and low-temperature service (ASTM A516)
	EN 10028-2:2009	EN 10028-3:2009	EN 10207:2005	EN 10207:1991	ASTM	JIS G3115
A516 gr.55
A516 gr.60
A516 gr.65
A516 gr.70
Pressure vessel plates, in carbon steel, low and intermediate tensile strength (ASTM A285)
	EN 10028-2:2009	EN 10028-3:2009	EN 10207:2005	EN 10207:1991	ASTM	JIS G3115
A285 gr.A
A285 gr.B
A285 gr.C
Pressure vessel plates, in molybdenum alloy steel (ASTM A204)
	EN 10028-2:2009	EN 10028-3:2009	EN 10207:2005	EN 10207:1991	ASTM	JIS G3115
A204 gr.A
A204 gr.B
A204 gr.C
Steels for simple pressure vessels (EN 10207:2005)
	EN 10028-2:2009	EN 10028-3:2009	EN 10207:2005	EN 10207:1991	ASTM	JIS G3115
P235S EN 10207	-	-	P235S	SPH235	-	-
P265S EN 10207	-	-	P265S	SPH265	-	-
P275SL EN 10207	-	-	P275S	SPHL275	-	-
Steels with specified properties at elevated temperatures (EN 10028-2:2009)
	EN 10028-2:2009	EN 10028-3:2009	EN 10207:2005	EN 10207:1991	ASTM	JIS G3115
P235GH EN 10028-2	P235GH	-	-	-	A285 gr.C/A414 gr.C	SPV 24
P265GH EN 10028-2	P265GH	-	-	-	A414 gr.E	-
P295GH EN 10028-2	P295GH	-	-	-	A299/A414 gr.F	-
P355GH EN 10028-2	P355GH	-	-	-	A414 gr.G	SPV 36
16 Mo 3 EN 10028-2	16 Mo 3	-	-	-	A204-B	-
Weldable fine grain steels, normalised (EN 10028-3:2009)
	EN 10028-2:2009	EN 10028-3:2009	EN 10207:2005	EN 10207:1991	ASTM	JIS G3115
P275NH EN 10028-3	-	P275NH	-	-	-	-
P275NL1 EN 10028-3	-	P275NL1	-	-	-	-
P275NL2 EN 10028-3	-	P275NL2	-	-	-	-
P355N EN 10028-3	-	P355N	-	-	A737 gr.B	-
P355NH EN 10028-3	-	P355NH	-	-	A737 gr.B	-
P355NL1 EN 10028-3	-	P355NL1	-	-	-	-
P355NL2 EN 10028-3	-	P355NL2	-	-	-	-
P460NH EN 10028-3	-	P460NH	-	-	A737 gr.C	-
P460NL1 EN 10028-3	-	P460NL1	-	-	-	-
P460NL2 EN 10028-3	-	P460NL2	-	-	-	-

Dimensions

For the dimensions available, see Table A in data sheet H99.

 

P355GH is available up to 100 mm thickness.

P355N/NH-NL1/NL2 is available up to 100 mm thickness.

P460NH/NL1/NL2 is available up to 80 mm thickness.

Mechanical properties

Pressure vessel plates, heat treated, in carbon-manganese-silicon steel (ASTM A537)
	Direction	Thickness (mm)	Re (MPa)	Rm (MPa)	A 5.65√So (%)	KV 20°C (J)	KV 0°C (J)	KV -20°C (J)	KV -40°C (J)	KV -50°C (J)	A 2 (%)	A 8 (%)
A537 cl.1	T	5 - 65	≥ 345	485 - 620	-	-	-	-	-	-	≥ 22	≥ 18
		65 - 80	≥ 310	450 - 585
Pressure vessel plates, in carbon steel, for intermediate- and high-temperature service (ASTM A515)
	Direction	Thickness (mm)	Re (MPa)	Rm (MPa)	A 5.65√So (%)	KV 20°C (J)	KV 0°C (J)	KV -20°C (J)	KV -40°C (J)	KV -50°C (J)	A 2 (%)	A 8 (%)
A515 gr.60	T	5 - 80	≥ 220	415 - 550	-	-	-	-	-	-	≥ 25	≥ 21
A515 gr.65	T	5 - 80	≥ 240	450 - 585	-	-	-	-	-	-	≥ 23	≥ 19
A515 gr.70	T	5 - 80	≥ 260	485 - 620	-	-	-	-	-	-	≥ 21	≥ 17
Pressure vessel plates, in carbon steel, for intermediate- and low-temperature service (ASTM A516)
	Direction	Thickness (mm)	Re (MPa)	Rm (MPa)	A 5.65√So (%)	KV 20°C (J)	KV 0°C (J)	KV -20°C (J)	KV -40°C (J)	KV -50°C (J)	A 2 (%)	A 8 (%)
A516 gr.55	T	5 - 150	≥ 205	380 - 515	-	-	-	-	-	-	≥ 27	≥ 23
A516 gr.60	T	5 - 150	≥ 220	415 - 550	-	-	-	-	-	-	≥ 25	≥ 21
A516 gr.65	T	5 - 120	≥ 240	450 - 585	-	-	-	-	-	-	≥ 23	≥ 19
A516 gr.70	T	5 - 120	≥ 260	485 - 620	-	-	-	-	-	-	≥ 21	≥ 17
Pressure vessel plates, in carbon steel, low and intermediate tensile strength (ASTM A285)
	Direction	Thickness (mm)	Re (MPa)	Rm (MPa)	A 5.65√So (%)	KV 20°C (J)	KV 0°C (J)	KV -20°C (J)	KV -40°C (J)	KV -50°C (J)	A 2 (%)	A 8 (%)
A285 gr.A	T	5 - 50	≥ 165	310 - 450	-	-	-	-	-	-	≥ 30	≥ 27
A285 gr.B	T	5 - 50	≥ 185	345 - 485	-	-	-	-	-	-	≥ 28	≥ 25
A285 gr.C	T	5 - 50	≥ 205	380 - 515	-	-	-	-	-	-	≥ 27	≥ 23
Pressure vessel plates, in molybdenum alloy steel (ASTM A204)
	Direction	Thickness (mm)	Re (MPa)	Rm (MPa)	A 5.65√So (%)	KV 20°C (J)	KV 0°C (J)	KV -20°C (J)	KV -40°C (J)	KV -50°C (J)	A 2 (%)	A 8 (%)
A204 gr.A	T	5 - 80	≥ 255	450 - 585	-	-	-	-	-	-	≥ 23	≥ 19
A204 gr.B	T	5 - 80	≥ 275	485 - 620	-	-	-	-	-	-	≥ 21	≥ 17
A204 gr.C	T	5 - 80	≥ 295	515 - 655	-	-	-	-	-	-	≥ 20	≥ 16
Steels for simple pressure vessels (EN 10207:2005)
	Direction	Thickness (mm)	Re (MPa)	Rm (MPa)	A 5.65√So (%)	KV 20°C (J)	KV 0°C (J)	KV -20°C (J)	KV -40°C (J)	KV -50°C (J)	A 2 (%)	A 8 (%)
P235S EN 10207	L	5 - 40	-	-	≥ 26	-	-	≥ 28	-	-	-	-
		40 - 60			≥ 25
	T	5 - 16	≥ 235	360 - 480	≥ 24	-	-	-	-	-	-	-
		16 - 40	≥ 225
		40 - 60	≥ 215		≥ 23
P265S EN 10207	L	5 - 60	-	-	≥ 22	-	-	≥ 28	-	-	-	-
	T	5 - 16	≥ 265	410 - 530	≥ 20	-	-	-	-	-	-	-
		16 - 40	≥ 255
		40 - 60	≥ 245
P275SL EN 10207	L	5 - 60	-	-	≥ 24	-	-	-	-	≥ 28	-	-
	T	5 - 16	≥ 275	390 - 510	≥ 22	-	-	-	-	-	-	-
		16 - 40	≥ 265
		40 - 60	≥ 255
Steels with specified properties at elevated temperatures (EN 10028-2:2009)
	Direction	Thickness (mm)	Re (MPa)	Rm (MPa)	A 5.65√So (%)	KV 20°C (J)	KV 0°C (J)	KV -20°C (J)	KV -40°C (J)	KV -50°C (J)	A 2 (%)	A 8 (%)
P235GH EN 10028-2	T	5 - 16	≥ 235	360 - 480	≥ 24	≥ 40	≥ 34	≥ 27	-	-	-	-
		16 - 40	≥ 225
		40 - 60	≥ 215
		60 - 100	≥ 200
		100 - 150	≥ 185	350 - 480
P265GH EN 10028-2	T	5 - 16	≥ 265	410 - 530	≥ 22	≥ 40	≥ 34	≥ 27	-	-	-	-
		16 - 40	≥ 255
		40 - 60	≥ 245
		60 - 100	≥ 215
		100 - 150	≥ 200	400 - 530
P295GH EN 10028-2	T	5 - 16	≥ 295	460 - 580	≥ 21	≥ 40	≥ 34	≥ 27	-	-	-	-
		16 - 40	≥ 290
		40 - 60	≥ 285
		60 - 100	≥ 260
		100 - 150	≥ 235	440 - 470
P355GH EN 10028-2	T	5 - 16	≥ 355	510 - 650	≥ 20	≥ 40	≥ 34	≥ 27	-	-	-	-
		16 - 40	≥ 345
		40 - 60	≥ 335
		60 - 100	≥ 315	490 - 630
16 Mo 3 EN 10028-2	T	5 - 16	≥ 275	440 - 590	≥ 22	≥ 31	-	-	-	-	-	-
		16 - 40	≥ 270
		40 - 60	≥ 260
		60 - 100	≥ 240	430 - 580
		100 - 150	≥ 220	420 - 570
All mechanical properties are guaranteed in the normalised or normalised rolled condition.
Weldable fine grain steels, normalised (EN 10028-3:2009)
	Direction	Thickness (mm)	Re (MPa)	Rm (MPa)	A 5.65√So (%)	KV 20°C (J)	KV 0°C (J)	KV -20°C (J)	KV -40°C (J)	KV -50°C (J)	A 2 (%)	A 8 (%)
P275NH EN 10028-3	L	5 - 40	-	-	-	≥ 75	≥ 65	≥ 45	-	-	-	-
	T	5 - 16	≥ 275	390 - 510	≥ 24	≥ 50	≥ 40	≥ 30	-	-	-	-
		16 - 40	≥ 265
		40 - 60	≥ 255
		60 - 100	≥ 235	370 - 490	≥ 23
		100 - 150	≥ 225	360 - 480
P275NL1 EN 10028-3	L	5 - 40	-	-	-	≥ 80	≥ 70	≥ 50	≥ 40	≥ 30	-	-
	T	5 - 16	≥ 275	390 - 510	≥ 24	≥ 60	≥ 50	≥ 35	≥ 27	-	-	-
		16 - 40	≥ 265
		40 - 60	≥ 255
		60 - 100	≥ 235	370 - 490	≥ 23
		100 - 150	≥ 225	360 - 480
P275NL2 EN 10028-3	L	5 - 40	-	-	-	≥ 85	≥ 75	≥ 55	≥ 45	≥ 42	-	-
	T	5 - 16	≥ 275	390 - 510	≥ 24	≥ 70	≥ 60	≥ 40	≥ 30	≥ 27	-	-
		16 - 40	≥ 265
		40 - 60	≥ 255
		60 - 100	≥ 235	370 - 490	≥ 23
		100 - 150	≥ 225	360 - 480
P355N EN 10028-3	L	5 - 40	-	-	-	≥ 75	≥ 65	≥ 45	-	-	-	-
	T	5 - 16	≥ 355	490 - 630	≥ 22	≥ 50	≥ 40	≥ 30	-	-	-	-
		16 - 40	≥ 345
		40 - 60	≥ 335
		60 - 100	≥ 315	470 - 610	≥ 21
P355NH EN 10028-3	L	5 - 40	-	-	-	≥ 75	≥ 65	≥ 45	-	-	-	-
	T	5 - 16	≥ 355	490 - 630	≥ 22	≥ 50	≥ 40	≥ 30	-	-	-	-
		16 - 40	≥ 345
		40 - 60	≥ 335
		60 - 100	≥ 315	470 - 610	≥ 21
P355NL1 EN 10028-3	L	5 - 40	-	-	-	≥ 80	≥ 70	≥ 50	≥ 40	≥ 30	-	-
	T	5 - 16	≥ 355	490 - 630	≥ 22	≥ 60	≥ 50	≥ 35	≥ 27	-	-	-
		16 - 40	≥ 345
		40 - 60	≥ 335
		60 - 100	≥ 315	470 - 610	≥ 21
P355NL2 EN 10028-3	L	5 - 40	-	-	-	≥ 85	≥ 75	≥ 55	≥ 45	≥ 42	-	-
	T	5 - 16	≥ 355	490 - 630	≥ 22	≥ 70	≥ 60	≥ 40	≥ 30	≥ 27	-	-
		16 - 40	≥ 345
		40 - 60	≥ 335
		60 - 100	≥ 315	470 - 610	≥ 21
P460NH EN 10028-3	L	5 - 40	-	-	-	≥ 75	≥ 65	≥ 45	-	-	-	-
	T	5 - 16	≥ 460	570 - 720	≥ 17	≥ 50	≥ 40	≥ 30	-	-	-	-
		16 - 40	≥ 445
		40 - 60	≥ 430
		60 - 80	≥ 400	540 - 710
P460NL1 EN 10028-3	L	5 - 40	-	-	≥ 80	≥ 70	≥ 50	≥ 40	≥ 30	≥ 80	-	-
	T	5 - 16	≥ 460	570 - 720	≥ 17	≥ 60	≥ 50	≥ 35	≥ 27	-	-	-
		16 - 40	≥ 445
		40 - 60	≥ 430
		60 - 80	≥ 400	540 - 710
P460NL2 EN 10028-3	L	5 - 40	-	-	-	≥ 85	≥ 75	≥ 55	≥ 45	≥ 42	-	-
	T	5 - 16	≥ 460	570 - 720	≥ 17	≥ 70	≥ 60	≥ 40	≥ 30	≥ 27	-	-
		16 - 40	≥ 445
		40 - 60	≥ 430
		60 - 80	≥ 400	540 - 710
All mechanical properties are guaranteed in the normalised condition.

Min mechanical characteristics at high temperature R_e (MPa)

Steels for simple pressure vessels (EN 10207:2005)
Steel grade	Thickness (mm)	50°C	100°C	150°C	200°C	250°C	300°C	350°C	400°C	450°C	500°C
P235S EN 10207	5 < th ≤ 60	-	171	162	153	135	117	-	-	-	-
P265S EN 10207	5 < th ≤ 60		194	185	176	158	140
P275SL EN 10207	5 < th ≤ 40		221	203		159	132
	40 < th ≤ 60		212	194
Steels with specified properties at elevated temperatures (EN 10028-2:2009)
Steel grade	Thickness (mm)	50°C	100°C	150°C	200°C	250°C	300°C	350°C	400°C	450°C	500°C
P235GH EN 10028-2	5 < th ≤ 16	227	214	198	182	167	153	142	133	-	-
	16 < th ≤ 40	218	205	190	174	160	147	136	128
	40 < th ≤ 60	208	196	181	167	153	140	130	122
	60 < th ≤ 100	193	182	169	155	142	130	121	114
	100 < th ≤ 150	179	168	156	143	131	121	112	105
P265GH EN 10028-2	5 < th ≤ 16	256	241	223	205	188	173	160	150
	16 < th ≤ 40	247	232	215	197	181	166	154	145
	40 < th ≤ 60	237	223	206	190	174	160	148	139
	60 < th ≤ 100	208	196	181	167	153	140	130	122
	100 < th ≤ 150	193	182	169	155	142	130	121	114
P295GH EN 10028-2	5 < th ≤ 16	285	268	249	228	209	192	178	167
	16 < th ≤ 40	280	264	244	225	206	189	175	165
	40 < th ≤ 60	276	259	240	221	202	186	172	162
	60 < th ≤ 100	251	237	219	201	184	170	157	148
	100 < th ≤ 150	227	214	198	182	167	153	142	133
P355GH EN 10028-2	5 < th ≤ 16	343	323	299	275	252	232	214	202
	16 < th ≤ 40	334	314	291	267	245	225	208	196
	40 < th ≤ 60	324	305	282	259	238	219	202	190
	60 < th ≤ 100	305	287	265	244	224	206	190	179
16 Mo 3 EN 10028-2	5 < th ≤ 16	273	264	250	233	213	194	175	159	147	141
	16 < th ≤ 40	268	259	245	228	209	190	172	156	145	139
	40 < th ≤ 60	258	250	236	220	202	183	165	150	139	134
	60 < th ≤ 100	238	230	218	203	186	169	153	139	129	123
	100 < th ≤ 150	218	211	200	186	171	155	140	127	118	113
Weldable fine grain steels, normalised (EN 10028-3:2009)
Steel grade	Thickness (mm)	50°C	100°C	150°C	200°C	250°C	300°C	350°C	400°C	450°C	500°C
P275NH EN 10028-3	5 < th ≤ 16	266	250	232	213	195	179	166	156	-	-
	16 < th ≤ 40	256	241	223	205	188	173	160	150
	40 < th ≤ 60	247	232	215	197	181	166	154	145
	60 < th ≤ 100	227	214	198	182	167	153	142	133
	100 < th ≤ 150	218	205	190	174	160	147	136	128
P355NH EN 10028-3	5 < th ≤ 16	343	323	299	275	252	232	214	202
	16 < th ≤ 40	334	314	291	267	245	225	208	196
	40 < th ≤ 60	324	305	282	259	238	219	202	190
	60 < th ≤ 100	305	287	265	244	224	206	190	179
P460NH EN 10028-3	5 < th ≤ 16	445	419	388	356	326	300	278	261
	16 < th ≤ 40	430	405	375	345	316	290	269	253
	40 < th ≤ 60	416	391	362	333	305	281	260	244
	60 < th ≤ 80	387	364	337	310	284	261	242	227

Chemical composition

Pressure vessel plates, heat treated, in carbon-manganese-silicon steel (ASTM A537)

Thickness (mm)

C (%)

Mn (%)

P (%)

S (%)

Si (%)

Al (%)

Cu (%)

Cr (%)

Ni (%)

Mo (%)

Nb (%)

V (%)

Ti (%)

N (%)

Ceq (%)

Ni+Cr+Cu+Mo (%)

A537 cl.1

5 - 40

≤ 0.24

0.70 - 1.35

≤ 0.035

≤ 0.035

0.15 - 0.50

-

≤ 0.35

≤ 0.25

≤ 0.25

≤ 0.08

-

-

-

-

-

-

40 - 80

1.00 - 1.60

Pressure vessel plates, in carbon steel, for intermediate- and high-temperature service (ASTM A515)

Thickness (mm)

C (%)

Mn (%)

P (%)

S (%)

Si (%)

Al (%)

Cu (%)

Cr (%)

Ni (%)

Mo (%)

Nb (%)

V (%)

Ti (%)

N (%)

Ceq (%)

Ni+Cr+Cu+Mo (%)

A515 gr.60

5 - 25

≤ 0.24

≤ 0.90

≤ 0.025

≤ 0.025

0.15 - 0.40

-

-

-

-

-

-

-

-

-

-

-

25 - 50

≤ 0.27

50 - 80

≤ 0.29

A515 gr.65

5 - 25

≤ 0.28

≤ 0.90

≤ 0.025

≤ 0.025

0.15 - 0.40

-

-

-

-

-

-

-

-

-

-

-

25 - 50

≤ 0.31

50 - 80

≤ 0.33

A515 gr.70

5 - 25

≤ 0.31

≤ 1.20

≤ 0.025

≤ 0.025

0.15 - 0.40

-

-

-

-

-

-

-

-

-

-

-

25 - 50

≤ 0.33

50 - 80

≤ 0.35

Pressure vessel plates, in carbon steel, for intermediate- and low-temperature service (ASTM A516)

Thickness (mm)

C (%)

Mn (%)

P (%)

S (%)

Si (%)

Al (%)

Cu (%)

Cr (%)

Ni (%)

Mo (%)

Nb (%)

V (%)

Ti (%)

N (%)

Ceq (%)

Ni+Cr+Cu+Mo (%)

A516 gr.55

5 - 12.5

≤ 0.18

0.60 - 0.90

≤ 0.025

≤ 0.025

0.15 - 0.40

-

-

-

-

-

-

-

-

-

-

-

12.5 - 25

0.60 - 1.20

25 - 50

≤ 0.20

50 - 80

≤ 0.22

A516 gr.60

5 - 12.5

≤ 0.21

0.60 - 0.90

≤ 0.025

≤ 0.025

0.15 - 0.40

-

-

-

-

-

-

-

-

-

-

-

12.5 - 25

0.85 - 1.20

25 - 50

≤ 0.23

50 - 80

≤ 0.25

A516 gr.65

5 - 25

≤ 0.24

0.85 - 1.20

≤ 0.025

≤ 0.025

0.15 - 0.40

-

-

-

-

-

-

-

-

-

-

-

25 - 50

≤ 0.26

50 - 80

≤ 0.28

A516 gr.70

5 - 25

≤ 0.27

0.85 - 1.20

≤ 0.025

≤ 0.025

0.15 - 0.40

-

-

-

-

-

-

-

-

-

-

-

25 - 50

≤ 0.28

50 - 80

≤ 0.30

Mn: For each reduction by 0.01 percentage points below the specified maximum for carbon, an increase of 0.06 percentage points above the specified maximum for manganese is permitted, up to a maximum of 1.5% by heat analysis, and 1.6% by product analysis.

Pressure vessel plates, in carbon steel, low and intermediate tensile strength (ASTM A285)

Thickness (mm)

C (%)

Mn (%)

P (%)

S (%)

Si (%)

Al (%)

Cu (%)

Cr (%)

Ni (%)

Mo (%)

Nb (%)

V (%)

Ti (%)

N (%)

Ceq (%)

Ni+Cr+Cu+Mo (%)

A285 gr.A

5 - 50

≤ 0.17

≤ 0.90

≤ 0.035

≤ 0.035

-

-

-

-

-

-

-

-

-

-

-

-

A285 gr.B

5 - 50

≤ 0.22

≤ 0.90

≤ 0.035

≤ 0.035

-

-

-

-

-

-

-

-

-

-

-

-

A285 gr.C

5 - 50

≤ 0.28

≤ 0.90

≤ 0.035

≤ 0.035

-

-

-

-

-

-

-

-

-

-

-

-

Pressure vessel plates, in molybdenum alloy steel (ASTM A204)

Thickness (mm)

C (%)

Mn (%)

P (%)

S (%)

Si (%)

Al (%)

Cu (%)

Cr (%)

Ni (%)

Mo (%)

Nb (%)

V (%)

Ti (%)

N (%)

Ceq (%)

Ni+Cr+Cu+Mo (%)

A204 gr.A

5 - 25

≤ 0.18

≤ 0.90

≤ 0.035

≤ 0.035

0.15 - 0.40

-

-

-

-

0.45 - 0.60

-

-

-

-

-

-

25 - 50

≤ 0.21

50 - 80

≤ 0.23

A204 gr.B

5 - 25

≤ 0.20

≤ 0.90

≤ 0.035

≤ 0.035

0.15 - 0.40

-

-

-

-

0.45 - 0.60

-

-

-

-

-

-

25 - 50

≤ 0.23

50 - 80

≤ 0.25

A204 gr.C

5 - 25

≤ 0.23

≤ 0.90

≤ 0.035

≤ 0.035

0.15 - 0.40

-

-

-

-

0.45 - 0.60

-

-

-

-

-

-

25 - 50

≤ 0.26

50 - 80

≤ 0.28

Steels for simple pressure vessels (EN 10207:2005)

Thickness (mm)

C (%)

Mn (%)

P (%)

S (%)

Si (%)

Al (%)

Cu (%)

Cr (%)

Ni (%)

Mo (%)

Nb (%)

V (%)

Ti (%)

N (%)

Ceq (%)

Ni+Cr+Cu+Mo (%)

P235S EN 10207

5 - 80

≤ 0.16

0.40 - 1.20

≤ 0.025

≤ 0.025

≤ 0.35

≥ 0.020

-

-

-

-

-

-

-

-

-

-

P265S EN 10207

5 - 80

≤ 0.20

0.50 - 1.50

≤ 0.025

≤ 0.025

≤ 0.40

≥ 0.020

-

-

-

-

-

-

-

-

-

-

P275SL EN 10207

5 - 80

≤ 0.16

0.50 - 1.50

≤ 0.025

≤ 0.020

≤ 0.40

≥ 0.020

-

-

-

-

-

-

-

-

-

-

The above chemical properties are based on cast analysis data.

Steels with specified properties at elevated temperatures (EN 10028-2:2009)

Thickness (mm)

C (%)

Mn (%)

P (%)

S (%)

Si (%)

Al (%)

Cu (%)

Cr (%)

Ni (%)

Mo (%)

Nb (%)

V (%)

Ti (%)

N (%)

Ceq (%)

Ni+Cr+Cu+Mo (%)

P235GH EN 10028-2

5 - 150

≤ 0.16

0.60 - 1.20

≤ 0.025

≤ 0.010

≤ 0.35

≥ 0.020

≤ 0.30

≤ 0.30

≤ 0.30

≤ 0.08

≤ 0.020

≤ 0.02

≤ 0.030

≤ 0.012

-

≤ 0.70

P265GH EN 10028-2

5 - 150

≤ 0.20

0.80 - 1.40

≤ 0.025

≤ 0.010

≤ 0.40

≥ 0.020

≤ 0.30

≤ 0.30

≤ 0.30

≤ 0.08

≤ 0.020

≤ 0.02

≤ 0.030

≤ 0.012

-

≤ 0.70

P295GH EN 10028-2

5 - 150

0.08 - 0.20

0.90 - 1.50

≤ 0.025

≤ 0.010

≤ 0.40

≥ 0.020

≤ 0.30

≤ 0.30

≤ 0.30

≤ 0.08

≤ 0.020

≤ 0.02

≤ 0.030

≤ 0.012

-

≤ 0.70

P355GH EN 10028-2

5 - 100

0.10 - 0.22

1.10 - 1.70

≤ 0.025

≤ 0.010

≤ 0.60

≥ 0.020

≤ 0.30

≤ 0.30

≤ 0.30

≤ 0.08

≤ 0.040

≤ 0.02

≤ 0.030

≤ 0.012

-

≤ 0.70

16 Mo 3 EN 10028-2

5 - 150

0.12 - 0.20

0.40 - 0.90

≤ 0.025

≤ 0.010

≤ 0.35

-

≤ 0.30

≤ 0.30

≤ 0.30

0.25 - 0.35

-

-

-

≤ 0.012

-

-

The above chemical properties are based on cast analysis data.

Weldable fine grain steels, normalised (EN 10028-3:2009)

Thickness (mm)

C (%)

Mn (%)

P (%)

S (%)

Si (%)

Al (%)

Cu (%)

Cr (%)

Ni (%)

Mo (%)

Nb (%)

V (%)

Ti (%)

N (%)

Ceq (%)

Ni+Cr+Cu+Mo (%)

P275NH EN 10028-3

5 - 100

≤ 0.16

0.80 - 1.50

≤ 0.025

≤ 0.010

≤ 0.40

≥ 0.020

≤ 0.30

≤ 0.30

≤ 0.50

≤ 0.08

≤ 0.050

≤ 0.05

≤ 0.030

≤ 0.012

≤ 0.40

-

100 - 150

≤ 0.42

P275NL1 EN 10028-3

5 - 100

≤ 0.16

0.80 - 1.50

≤ 0.025

≤ 0.008

≤ 0.40

≥ 0.020

≤ 0.30

≤ 0.30

≤ 0.50

≤ 0.08

≤ 0.050

≤ 0.05

≤ 0.030

≤ 0.012

≤ 0.40

-

100 - 150

≤ 0.42

P275NL2 EN 10028-3

5 - 100

≤ 0.16

0.80 - 1.50

≤ 0.020

≤ 0.005

≤ 0.40

≥ 0.020

≤ 0.30

≤ 0.30

≤ 0.50

≤ 0.08

≤ 0.050

≤ 0.05

≤ 0.030

≤ 0.012

≤ 0.40

-

100 - 150

≤ 0.42

P355N EN 10028-3

5 - 60

≤ 0.18

1.10 - 1.70

≤ 0.025

≤ 0.010

≤ 0.50

≥ 0.020

≤ 0.30

≤ 0.30

≤ 0.50

≤ 0.08

≤ 0.050

≤ 0.10

≤ 0.030

≤ 0.012

≤ 0.43

-

60 - 100

≤ 0.45

P355NH EN 10028-3

5 - 60

≤ 0.18

1.10 - 1.70

≤ 0.025

≤ 0.010

≤ 0.50

≥ 0.020

≤ 0.30

≤ 0.30

≤ 0.50

≤ 0.08

≤ 0.050

≤ 0.10

≤ 0.030

≤ 0.012

≤ 0.43

-

60 - 100

≤ 0.45

P355NL1 EN 10028-3

5 - 60

≤ 0.18

1.10 - 1.70

≤ 0.025

≤ 0.008

≤ 0.50

≥ 0.020

≤ 0.30

≤ 0.30

≤ 0.50

≤ 0.08

≤ 0.050

≤ 0.10

≤ 0.030

≤ 0.012

≤ 0.43

-

60 - 100

≤ 0.45

P355NL2 EN 10028-3

5 - 60

≤ 0.18

1.10 - 1.70

≤ 0.020

≤ 0.005

≤ 0.50

≥ 0.020

≤ 0.30

≤ 0.30

≤ 0.50

≤ 0.08

≤ 0.050

≤ 0.10

≤ 0.030

≤ 0.012

≤ 0.43

-

60 - 100

≤ 0.45

P460NH EN 10028-3

5 - 60

≤ 0.20

1.10 - 1.70

≤ 0.025

≤ 0.010

≤ 0.60

≥ 0.020

≤ 0.70

≤ 0.30

≤ 0.80

≤ 0.10

≤ 0.050

≤ 0.20

≤ 0.030

≤ 0.025

≤ 0.53

-

60 - 80

-

P460NL1 EN 10028-3

5 - 60

≤ 0.20

1.10 - 1.70

≤ 0.025

≤ 0.008

≤ 0.60

≥ 0.020

≤ 0.70

≤ 0.30

≤ 0.80

≤ 0.10

≤ 0.050

≤ 0.20

≤ 0.030

≤ 0.025

≤ 0.53

-

60 - 80

-

P460NL2 EN 10028-3

5 - 60

≤ 0.20

1.10 - 1.70

≤ 0.020

≤ 0.005

≤ 0.60

≥ 0.020

≤ 0.70

≤ 0.30

≤ 0.80

≤ 0.10

≤ 0.050

≤ 0.20

≤ 0.030

≤ 0.025

≤ 0.53

-

60 - 80

-

The above chemical properties are based on cast analysis data.   Carbon equivalent value is guaranteed only if specified on ordering.   Cr+Cu+Mo ≤ 0.45   For P275... grades, Nb+Ti+V ≤ 0.05 For P355... grades, Nb+Ti+V ≤ 0.12 For P460... grades, Nb+Ti+V ≤ 0.22

For commercial information (quotations, deliveries, product availability):

• Europe: http://industry.arcelormittal.com/agencies
• Other countries: international@arcelormittal.com

For technical questions about these products: flateurope.technical.assistance@arcelormittal.com


All details provided in the ArcelorMittal Flat Carbon Europe S.A. catalogue are for information purposes only. ArcelorMittal Flat Carbon Europe S.A. reserves the right to change its product range at any time without prior notice.