EN 10217-1 - Tianjin Brisk Metalwork Co.,Ltd

EN 10217-1 | BS EN 10217-1 Non-Alloy Welded Steel Pipe Manufacturer and Supplier – Brisk Steel

Standard	EN 10217-1 / BS EN 10217-1
Material	Non-alloy steel
Process	EW, HFW, SAWL, SAWH
Grade	P195TR1, P235TR1, P265TR1, P195TR2, P235TR2, P265TR2
Outer Diameter	10.2 mm -2540 mm
Wall Thickness	0.5 mm – 40 mm
Use	Pressure purposes with room temperature properties

What is the EN 10217-1 ?

EN 10217-1 (BS EN 10217-1) is the technical delivery conditions for pressure pipes of the circular hollow cross-sections with specific room-temperature properties, manufactured by electric welding and submerged-arc welding processes and having both TR1 and TR2 qualities.

TR1 for qualities without specified aluminium content and specified impact properties and with non-specific inspection requirements; TR2 for qualities with specified aluminium content, specified impact properties, and either non-specific or specific inspection requirements.

Quality TR2 is intended to support the essential requirements of EU Directive 2014/68/EU in respect of pressure equipment with specified room temperature properties.

Manufacture Process

EN 10217-1 should be fabricated using welding processes, which can be categorized as follows:

For EN 10217-1 there are various manufacturing routes available depending on the production process, production route and delivery conditions. If required by the project, this can be specified using the route number.

However, it should be noted that there are several routes that are not suitable for the manufacture of TR2 varieties of tubes.

Route N°	Tube production process		Manufacturing route		Acceptable delivery condition ^a	Applicable for Quality
Route N°	Process	Symbol	Starting material	Forming operation	Acceptable delivery condition ^a	TR1	TR2
1a	Electric Welded ^b	EW HFW	Hot-rolled strip	Cold-formed and welded	As welded	Yes	-
1b					NW	Yes	-
1c					NP	Yes	Yes
1d					NR	Yes	Yes
2a			Normalized rolled strip		As welded	Yes	-
2b					NW	Yes	Yes
2c					NP	Yes	Yes
2d					NR	Yes	Yes
3c			Cold-rolled and stress-relieved strip		NP	Yes	Yes
3d			Cold-rolled and stress-relieved strip		NR	Yes	Yes
4a	Submerged arc welded longitudinal seam or Helical seam	SAWL SAWH	Hot-rolled plate or strip		As welded^d	Yes	-
4b			Hot-rolled plate or strip		NP	Yes	Yes
5a			Normalized rolled plate or strip		As welded ^d	Yes	Yes
5b			Normalized rolled plate or strip		NP	Yes	Yes
6a			Full body normalized plate or strip		As welded ^d	Yes	Yes
7a			Hot-rolled plate or strip	Normalized formed and welded ^c	As welded ^d	Yes	Yes
7b			Hot-rolled plate or strip		NP	Yes	Yes
8a			Normalized rolled plate or strip		As welded ^d	Yes	Yes
8b			Normalized rolled plate or strip		NP	Yes	Yes
9a			Full-body normalized plate or strip		As welded ^d	Yes	Yes
a: As welded = as formed with no subsequent heat treatment; NP = tube full body normalized; NW = normalized-weld zone; NR = normalized rolled or hot (stretch) reduced within the normalizing temperature range; b: For tubes of quality TR2, only HFW tubes, minimum welding frequency 100kHz, (symbol = HFW) are permitted; c: Only applicable to SAWL tubes; d: Stress-relieving treatment on the weld is permissible.

Chemical Composition

Steel grade	Chemical composition (cast analysis) ^a in % by mass
	C	Si	Mn	P	S	Cr ^b	Mo ^b	Ni ^b	Al _tot	Cu ^b	Nb ^b	Ti ^b	V^b	Cr+Cu+Mo+Ni ^b
	max	max	max	max	max	max	max	max	min	max	max	max	max	max
P195TR1	0.13	0.35	0.70	0.025	0.020	0.30	0.08	0.30	-	0.30	0.010	0.04	0.02	0.70
P195TR2	0.13	0.35	0.70	0.025	0.015	0.30	0.08	0.30	0.02 ^d	0.30 ^c	0.010	0.04	0.02	0.70
P235TR1	0.16	0.35	1.20	0.025	0.020	0.30	0.08	0.30	-	0.30	0.010	0.04	0.02	0.70
P235TR2	0.16	0.35	1.20	0.025	0.015	0.30	0.08	0.30	0.02 ^d	0.30 ^c	0.010	0.04	0.02	0.70
P265TR1	0.20	0.40	1.40	0.025	0.020	0.30	0.08	0.30	-	0.30	0.010	0.04	0.02	0.70
P265TR2	0.20	0.40	1.40	0.025	0.015	0.30	0.08	0.30	0.02 ^d	0.30^c	0.010	0.04	0.02	0.70
a: Elements not quoted 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 steelmaking process, which would have a negative impact on the mechanical properties, ageing and the suitability of the material; b: For qualities TR1 and TR2 supplied with non-specific inspection, the content of these elements need not be reported unless intentionally added to the cast; c: Option 3: In order to facilitate subsequent forming operations, an agreed maximum copper content lower than indicated and an agreed specified maximum tin content shall apply. In such cases, a 3.1 Test Certificate shall be supplied for steel quality TR2 (see Option 9); d: For Al/N ratios ≥ 2, if nitrogen is fixed by niobium, titanium or vanadium, details of which shall be reported, this requirement does not apply except that when using titanium, the steel producer shall verify that (Al+Ti/2) ≥ 0.020 %.

Mechanical Properties

Mechanical properties for quality TR1

Steel grade	Mechanical properties for quality TR1
	Tensile properties at room temperature
	Upper yield strength or proof strength R_eH a for wall thickness T min.		Tensile strength R_m	Elongation A min. % ^{a b}
	T ≤ 16	16 ＜ T ≤ 40		I	t
	MPa	MPa	MPa	I	t
P195TR1	195	185	320 – 440	27	25
P235TR1	235	225	360 – 500	25	23
P265TR1	265	255	410 – 570	21	19
a: See 11.2. b: I = longitudinal t = transverse;

Note: Tube grades in quality TR1 do not support the essential requirements of EU Directive 2014/68/EU in respect of pressure equipment.

Mechanical properties for quality TR2

Steel grade	Mechanical properties for quality TR2
	Tensile properties at room temperature					Impact properties
	Upper yield strength or proof strength R_eH a for wall thickness T min.		Tensile strength R_m	Elongation A min. % ^{a b}		Minimum average absorbed energy ^b KV₂ ^c J at a temperature of ℃
	T ≤ 16	16 ＜ T ≤ 40		I	t	l		t
	MPa	MPa	MPa	I	t	0	-10	0
P195TR2	195	185	320 – 440	27	25	40	28 ^d	27
P235TR2	235	225	360 – 500	25	23	40	28 ^d	27
P265TR2	265	255	410 – 570	21	19	40	28 ^d	27
a: See 11.2. b: I = longitudinal t = transverse c: KV₂ = impact values obtained using a 2 mm radius striker in accordance with EN ISO 148-1. d: Option 5: In addition to the specified impact test at 0 °C, the longitudinal impact properties at -10 °C shall be verified and reported.

Note: Tube grades in quality TR2 are intended to support the essential requirements of EU Directive 2014/68/EU in respect of pressure equipment with specified room temperature properties. For use in pressure equipment in accordance with PED Categories II, III and IV, TR2 grades with specific inspection are necessary (see Table 13).

Dimension

EN 10217-1 steel pipe sizes generally cover the following ranges:

Outer diameter: 10.2 mm – 2540 mm;
Wall thickness: 0.5 mm – 40 mm;

The preferred outside diameter and wall thickness shall be selected from three series.

Series 1 = diameter for which all the accessories needed for the construction of the piping system are standardized;
Series 2 = diameter for which not all the accessories are standardized;
Series 3 = diameter for special applications for which very few standardized accessories exist.

Tolerance

Tolerances for Outside Diameter and Wall Thickness

Outside diameter D	Manufacturing process	Tolerance outside diameter	Tolerance on wall thickness
			T≤5	5＜T≤10	10＜T≤40
≤219.1	EW and HFW	±1 % or ±0.5, whichever is the greater	±10 % or ±0.3, whichever is the greater	±8 % or ±2, whichever is the greater
＞219.1	EW and HFW	±0.75 % or ±6, whichever is the greater
All	SAW	±0.75 % or ±6, whichever is the greater	±10 % or ±0.3, whichever is the greater		±8 % or ±2, whichever is the greater

Tolerances for Length

Length range	Tolerance for outside diameter D
Length range	＜ 406.4	≥ 406.4
L ≤ 6000	0 – +10	0 – +25
6000 ＜ L ≤ 12000	0 – +10	0 – +50
L ＞ 12000	0 – by agreement

Straightness

The deviation from straightness, of any tube length L, shall not exceed 0,0015 L. Deviations from straightness over any one-metre length shall not exceed 3 mm.

Out-of-Roundness

For tubes of D ≤ 406,4 mm, out-of-roundness shall be included in the limits of the diameter tolerances;

For tubes of D > 406,4 mm and with D/T ≤ 100, out-of-roundness shall not exceed 2 %;

For tubes with a D/T ratio > 100 the values for out-of-roundness shall be agreed upon at the time of enquiry and order;

Weld Height

Maximum height of the weld bead for EW and HFW tubes

Manufacturing Process	Quality TR1		Quality TR2
Manufacturing Process	Outside	Inside	Outside	Inside
EW or HFW	Trimmed flush	1.5	Trimmed flush	Trimmed or 0.5 + 0.05T

Maximum height of the weld seam for SAW tubes

Wall thickness T	Maximum height of the weld seam
Wall thickness T	Inside	Outside
T ≤ 12.5	3.5	3.5
T ＞ 12.5	4.8	4.8

Leak Tightness Test

Hydrostatic Test

Test Pressure:

The experimental pressure for hydrostatic testing shall be calculated using 70 bar (7 MPa) or by the following formula, whichever is less.

P = 20 × (S × T)/D

P is the test pressure, in bar;
D is the specified outside diameter, in mm;
T is the specified wall thickness, in mm;
S is the stress, in MPa, corresponding to 70 % of the specified minimum yield strength for the steel grade concerned;

Test Time:

The test pressure shall be held for not less than 5 s for tubes with an outside diameter D ≤ 457 mm and for not less than 10 s for tubes with an outside diameter D > 457 mm.

Hydrostatic Test

The test shall be carried out in accordance with EN ISO 10893-1.

TR1 and TR2 Inspection and Validation Testing

TR1 Inspection and Validation Testing

Type of inspection and test		Frequency of testing	Refer to
Type of inspection and test		Non-specific inspection	Refer to
Mandatory tests	Cast analysis (reported by steel producer)	One representative result per delivery item	8.2.1 and 11.1
	Tensile test on the base material at room temperature		8.3, 10.2.2.2 and 11.2
	Transverse tensile test on the weld for tubes with outside diameter D ＞ 508 mm		8.3, 10.2.2.3 and 11.3
	Flattening test for D ＜ 600 mm and T/D ratio ≤ 0.15 but T ≤ 40 mm or drift expanding test for D ≤ 150 mm and T ≤ 10 mm (ERW and HFW tubes)	Manufacturer's procedure	8.3, 10.2.2.4 and 11.4 or 8.3, 10.2.2.4 and 11.5
	weld bend test for SAW tubes	Manufacturer's procedure	8.3, 10.2.2.5 and 11.6
	Leak-tightness test	Each tube	8.4.3.1 and 11.8
	Dimensional inspection		11.9
	Visual examination		11.10
	NDT of the weld		8.4.3.2 and 11.11
Optional tests	Transverse tensile test on weld for tubes with outside diameter (D) 219.1 ＜ D ≤ 508 mm (Option 10)	One representative result per delivery item	11.3
Optional tests	Wall thickness measurement away from tube ends (Option 11)	Each tube	11.9

TR2 Inspection and Validation Testing

Type of inspection and test		Frequency of testing		Refer to
Type of inspection and test		Non-specific inspection	Specific inspection	Refer to
Mandatory tests	Cast analysis (reported by steel producer)	One representative result per delivery item	One per cast	8.2.1 and 11.1
	Tensile test on the base material at room temperature	One representative result per delivery item	One test per test unit	8.3, 10.2.2.2 and 11.2
	Transverse tensile test on the weld for tubes with outside diameter D ＞ 508 mm	One representative result per delivery item	One test per test unit	8.3, 10.2.2.3 and 11.3
	Flattening test for D ＜ 600 mm and T/D ratio ≤ 0.15 but T ≤ 40 mm or drift expanding test for D ≤ 150 mm and T ≤ 10 mm (ERW and HFW tubes)	Manufacturer's procedure	Two tests per test unit or One test per test unit	8.3, 10.2.2.4 and 11.4 or 8.3, 10.2.2.4 and 11.5
	weld bend test for SAW tubes	Manufacturer's procedure	One test per test unit	8.3, 10.2.2.5 and 11.6
	Impact test on the tube body	One representative result per delivery item	One set of tests per test unit	8.3, 10.2.2.6 and 11.7
	Leak-tightness test	Each tube		8.4.3.1 and 11.8
	Dimensional inspection			11.9
	Visual examination			11.10
	NDT of the weld			8.4.3.2 and 11.11
	NDT of plate / strip end welds for SAWH tubes	Each end weld		7.2.1, 8.4.3.2 and 11.11.4
Optional tests	Product analysis (Option 4)	Not applicable	One per cast	8.2.2, 10.2.1 and 11.1
	Additional longitudinal Impact test at -10 ℃ (Option 5)	Not applicable	One set of tests per test unit	8.3, Table 5 and 11.7
	Transverse tensile test on weld for tubes with outside diameter (D) 219.1 ＜ D ≤ 508 mm (Option 10)	One representative result per delivery item	One test per test unit	11.3
	Wall thickness measurement away from tube ends (Option 11)	Each tube		11.9

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