Properties

Steels for gas containers are a specific category of steels for pressure vessels. These steels are deep drawable and non-ageing.

Advantages

Steels for gas containers have very good weldability and excellent toughness. Their strength remains constant, even after heat treatment of the welds (normalisation or stress-relief annealing). This property guarantees the safety of the gas containers.

Applications

These grades are used for the production of gas containers according to the following process: top and bottom are cold formed, welded (SAW) and normalised.

Brand correspondence

 EN 10120:2017JIS G3116:1991Old brand names
P245NB EN 10120 P245NBSG 255BZ 37
P265NB EN 10120 P265NBSG 295BZ 42
P310NB EN 10120 P310NBSG 325 
P355NB EN 10120 P355NBSG 365 

Dimensions

 

Pickled

Thickness (mm)Min widthP245NB EN 10120, P265NB EN 10120P310NB EN 10120P355NB EN 10120
Max widthMax widthMax width
1.50 ≤ th < 1.708001260--
1.70 ≤ th < 1.8013601250
1.80 ≤ th < 1.9014601200
1.90 ≤ th < 2.0015201310
2.00 ≤ th < 2.10162014401370
2.10 ≤ th < 2.2016601430
2.20 ≤ th < 2.30172015101500
2.30 ≤ th < 2.4017801530
2.40 ≤ th < 2.50184015501560
2.50 ≤ th < 2.6019001590
2.60 ≤ th < 2.7020701620
2.70 ≤ th < 2.801650
2.80 ≤ th < 2.901680
2.90 ≤ th < 3.0021301710
3.00 ≤ th < 3.1016802040
3.10 ≤ th < 3.502070
3.50 ≤ th < 4.501790
4.50 ≤ th < 5.001900

Other options exist for cold rolled grades; see data sheet B64.


Mechanical properties

 
Direction
Thickness (mm)
Re (MPa)
Rm (MPa)
A80 (%)
A 5.65√So (%)
P245NB EN 10120T1.5 - 3≥ 245360 - 450≥ 26-
3 - 5-≥ 34
P265NB EN 10120T1.5 - 3≥ 265410 - 500≥ 24-
3 - 5-≥ 32
P310NB EN 10120T1.5 - 3≥ 310460 - 550≥ 21-
3 - 5-≥ 28
P355NB EN 10120T1.7 - 3≥ 355510 - 620≥ 19-
3 - 5-≥ 24

All mechanical properties are guaranteed in normalised or normalised rolled condition.



Chemical composition

 
C (%)
Mn (%)
P (%)
S (%)
Si (%)
Al (%)
Nb (%)
Ti (%)
N (%)
P245NB EN 10120 ≤ 0.160 ≥ 0.30 ≤ 0.025 ≤ 0.015 ≤ 0.25 ≥ 0.020 ≤ 0.050 ≤ 0.030 ≤ 0.009
P265NB EN 10120 ≤ 0.190 ≥ 0.40 ≤ 0.025 ≤ 0.015 ≤ 0.25 ≥ 0.020 ≤ 0.050 ≤ 0.030 ≤ 0.009
P310NB EN 10120 ≤ 0.200 ≥ 0.70 ≤ 0.025 ≤ 0.015 ≤ 0.50 ≥ 0.020 ≤ 0.050 ≤ 0.030 ≤ 0.009
P355NB EN 10120 ≤ 0.200 ≥ 0.70 ≤ 0.025 ≤ 0.015 ≤ 0.50 ≥ 0.020 ≤ 0.050 ≤ 0.030 ≤ 0.009

The chemical properties given are based on cast analysis data.



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

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.