Steels for simple pressure vessels

Standards
Europe	Material no.	D	F	I	GB
EN 10207		DIN EN 10207 (1992)	NFA 36-205	UNI 5869	BS 1501
P235S	1.0112	SPH 235	A 37 AP	Fe 360-2KW	164-360B LT20
S265S	1.0130	SPH 265	A 42 AP	Fe 410-2KW	164-400 LT20

Feasibility range
Grade	Thickness		Width
Grade		min.	max.	max.
S235S	1,5	10,75	1300
S265S	1.5	10,75	1300

1) Feasibility on the specific combination of thickness and width must be verified in the order phase.

Chemical composition
Grade	C	Si	Mn	P	S	Al
	max.	max.		max.	max.	min.
P235S	0.16	0.35	0.40 - 1.20	0.025	0.025	0.020
P265S	0.20	0.40	0.50 - 1.50	0.025	0.025	0.020

Mechanical properties
Grade	Yield point min		Tensile strength min	Elongation min [%]
	MPa		MPa	L₀ = 80 mm		L₀ = 5,65 √S₀
	s ≤ 16	16 < s ≤ 40		2 < s ≤ 2,5	2,5 < s ≤ 3	s > 3
P235S	235	225	360 - 480	20	21	26
P265S	265	255	410 - 530	17	18	22

1) s = nominal thickness in mm

Yield point at elevated temperatures
Grade	Min. 0,2 % yield point in MPa at elevated temperature in °C
	100	150	200	250	300
P235S	171	162	153	135	117
P265S	194	185	176	158	140