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Pressure strength pipie P195 P235 P265 hot rolled seamless steel tube

Pressure strength pipie P195 P235 P265 hot rolled seamless steel tube

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Steel Tube

Brief description:

pressure strength pipie P195 P235 P265 hot rolled seamless steel tube

Key words:

Product Description

Number: indicates what is the yield strength of the material of the pipe itself under pressure strength.

TR1: such steel grade does not specify the aluminum content and impact properties, and does not specify the quality of the test

TR2: This grade does not specify aluminum content, but does specify impact properties. As well as non-specific and case-specific test requirements.

For example: EN 10217 P195 TR1 indicates that the pipe is subjected to a pressure of 195Mp and that the standard does not specify the aluminum content or test criteria for the pipe material.

‘- EN 10217-1 Pipe Welds

The weld is the more important area of the pipe, so there must be no cracks around the weld. And it is not permitted to make any repairs to formed pipe welds. If repairs to welds are allowed in the standard document, they should be strictly enforced in accordance with the standard to ensure the integrity of the pipe.

- EN10217-1 Pipe Surfaces

The surface of the pipe is also regulated, first of all, there must not be any internal defects and the surface of the pipe must be smooth and free of cracks. If there is a coating, the retort is not hungry for air bubbles and the layers are uniform.

- Pipe Marking

Pipes are usually marked along their length with the name of the manufacturer, the standard (EN 10217-1), the material grade, the size, the wall thickness and sometimes information about the particular application or special conditions they fulfill. These markings are essential to ensure that the right pipe is used for the right application!For pipes with an outside diameter of more than 51 mm, the pipe marking can be affixed to the box or to the bundle, or a label can be used instead.

Chemical elements

Steel Grade		C max	Si	Mn	P	S	Cr b	Mo b	Ni b	Al tot	Cu b c	Nb b	Ti b	V b	Cr+Cu+Mo+Ni b
Steel Grade
Steel Name	Steel Number		max.	max.	max.	max.	Max.	max.	max.	min.	max.	max.	max.	max.	max.
P195TR1	1.0107	13	35	70	25	20	30	8	30	–	30	10	4	2	70
P195TR2	1.0108	13	35	70	25	20	30	8	30	0,02 d	30	10	4	2	70
P235TR1	1.0254	16	35	120	25	20	30	8	30	–	30	10	4	2	70
p235TR2	1.0255	16	35	120	25	20	30	8	30	0,02 d	30	10	4	2	70
P265TR1	1.0258	20	40	140	25	20	30	8	30	–	30	10	4	2	70
P265TR2	1.0259	20	40	140	25	20	30	8	30	0,02 d	30	10	4	2	70
a Elements not included in this Table shall not be intentionally added to the steel without the agreement of the purchaser, except for elements which may be added for finishing the cast. All appropriate measures shall be taken to prevent the addition of undesirable elements from scrap or other materials used in the steel making process.
b The content of these elements need not be reported unless intentionally added to the cast.
c Option 3: In order to facilitate subsequent forming operation, an agreed maximum copper content lower than indicated and an agreed specified maximum tin content shall apply.
d This requirement is not applicable provided the steel contains a sufficient amount of other nitrogen binding elements, which shall be reported.

Mechanical properties

Steel Grades		Tensile Properties					Impact Properties
Steel Name	Steel Number	Upper Yield Strength		Tensile Strength	Elongation		Minimum Average
		Reh b min for			A min		Absorbed Energy KV J
		Reh b min for			A min		Absorbed Energy KV J
		T mm		Rm	% b c		at a temperature of ℃ c
		T ≤16	16＜T≤40		% b c		l		t
		MPa *		MPa *	l	t	0	-10	0
P195TR1 e	1.0107	195	185	320-440	27	25	–	–	–
P195TR2	1.0108	195	185	320-440	27	25	40	28 d	27
P235TR1 e	1.0254	235	225	360-500	25	23			–
P235TR2	1.0255	235	225	360-500	25	23	40	28 d	27
P265TR1 e	1.0258	265	255	410-570	21	19	–	–	–
P265TR2	1.0259	265	255	410-570	21	19	40	28 d	27

a For wall thickness greater than 40 mm the mechanical properties are subject to agreement.

bSee 11.2.

c l = longitudinal; t = transverse.

dOption 5: Additionally, longitudinal impact strength shall be verified at – 10 °C.

eTubes made to these material grades are unlikely to support the essential requirements of Directive 97/23/EC unless other criteria are taken into account, see Annex I section 7.5 of this Directive

* 1 MPa = 1 N/mm²