This part of EN1026 specifies the technical delivery conditions in two test categories for seamless tubes for circular cross section, with specified elevated temperature properties, made of non-alloy and alloy steel.

• 
  EN 10216-1 non alloy steel tubes
• 
  EN 10216-2 seamless steel tubes

Application

• For producing storage tanks of heat-resistant steels used in boiler-making, tool-making;
• For constructing pressure reservoirs and high pressure are simultaneously used to have summarized load and special conditions.

Grades:

Chemical composition:

Steel grade		C	Si	Mn	P	S	Cr   b	Mo   b	Ni   b	Al   tot	Cu   b c	Nb   b	Cr+Cu +Mo+Ni
Steel name	Steel number	max.	max.	max.	Max.	max.	max.	max.	max.	min.	max.	max.	max.   b
P195TR1	1.0107	0,13	0,35	0,70	0,025	0,020	0,30	0,08	0,30	–	0,30	0,010	0,70
P195TR2	1.0108	0,13	0,35	0,70	0,025	0,020	0,30	0,08	0,30	0,02   d	0,30	0,010	0,70
P235TR1	1.0254	0,16	0,35	1,20	0,025	0,020	0,30	0,08	0,30	–	0,30	0,010	0,70
P235TR2	1.0255	0,16	0,35	1,20	0,025	0,020	0,30	0,08	0,30	0,02   d	0,30	0,010	0,70
P265TR1	1.0258	0,20	0,40	1,40	0,025	0,020	0,30	0,08	0,30	–	0,30	0,010	0,70
P265TR2	1.0259	0,20	0,40	1,40	0,025	0,020	0,30	0,08	0,30	0,02   d	0,30	0,010	0,70

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 steelmaking process.

b The content of these elements need not be reported unless intentionally added to the cast.

c Option 2: 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 property:

Steel grade		Tensile properties						Impact properties
Steel name	Steel number	Upper yield strength ReH b min. for Wall Thickness T mm			Tensile Strength Rm	Elongation A min.   %  b c		Minimum average absorbed energy KV J at a temperature of °C c
		T =16	16 < T =40	40 < T =60				l		t
		Mpa	Mpa	Mpa	Mpa	l	t	0	-10	0
P195TR1 e	1.0107	195	185	175	320 to 440	27	25	–	–	–
P195TR2	1.0108	195	185	175	320 to 440	27	25	40	28 d	27
P235TR1 e	1.0254	235	225	215	360 to 500	25	23	–	–	–
P235TR2	1.0255	235	225	215	360 to 500	25	23	40	28 d	27
P265TR1 e	1.0258	265	255	245	410 to 570	21	19	–	–	–
P265TR2	1.0259	265	255	245	410 to 570	21	19	40	28 d	27

a For wall thickness greater than 60mm the mechanical properties are subject to agreement.

b See 11.2.

c l = longitudinal t = transverse

d Option 4: Additionally, longitudinal impact strength shall be verified at – 10 °C

e Tubes 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

Sunny Steel supplies EN10216-1 seamless tube in EN10204 3.1 certificate.

EN 10216 Seamless steel tubes for pressure purposes

• EN 10216-1    Non-alloy steel tubes with specified room temperature properties
• EN 10216-2    Non alloy and alloy steel tubes with specified elevated temperature properties
• EN 10216-3    Alloy fine grain steel tubes
• EN 10216-4    Non-alloy and alloy steel tubes with specified low temperature properties
• EN 10216-5    Stainless steel tubes

Inspection and Test For EN 10216-2 Steel Pipe

Inspection and test type		Test frequency	Test category
Mandatory tests	Ladle analysis	One per ladle	1	2
	Tensile testing in room temperature	One per every test pipe	X	X
	Flattening test for D<600mm and the ratio of D≤0.15 but T≤40mm or ring testing for D>150mm and T ≤40mm		X	X
	Rolling test on a mandrel bar for D≤150mm and T≤10mm or ring testing for D≤114,3mm and T ≤12,5mm		X	X
	Resilience testing at the temperature of 20 ºC		X	X
	Tightness testing	Every pipe	X	X
	Dimensional testing		X	X
	Visual inspection		X	X
	NDT in order to identify longitudinal discontinuity	Every pipe	X	X
	Material identification for alloy steel		X	X
Optional tests	Final product analysis	One per ladle	X	X
	Tensile testing at elevated temperature	One per ladle and for the same thermal processing conditions	X	X
	Resilience testing	One per every test pipe	X	X
	Resilience testing in the machine direction at the temperature of -10ºC for non-alloy steel grades		X	X
	Wall thickness measurement at a distance from pipe ends		X	X
	NDT in order to identify transverse discontinuity	Every pipe	X	X
	NDT in order to identify delamination		X	X

Dimension for EN10216-2 Steel pipe

EN 10216-2 Outside diameter and wall thickness tolerances
Outside diameter D mm	Permissible deviations of outside diameter D	Permissible deviations of wall thickness depending on the T/D ratio
		≤0.025	>0.025 ≤0.050	>0.050 ≤0.10	>0.10
D≤219,1	+\- 1% or =\- 0.5mm depending on which is greater	+\- 12,5% or 0.4 mm depending on which is greater
D>219,1		=\- 20%	=\- 15%	=\- 12,5%	=\- 10%

For the outside diameter of D≥355,6 mm, local deviation outside of the upper deviation limit by further 5% of the wall thickness T is permitted

Material

• z.Bsp: P235GH TC1, P235GH TC2, 16Mo3

This part of EN1026 specifies the technical delivery conditions in two test categories for seamless tubes for circular cross section, with specified elevated temperature properties, made of non-alloy and alloy steel.

Delivery

• 5-7 m manufacturing lenght

DIN EN 10216-1

Seamless steel tubes for pressure purposes – Technical delivery conditions -Part 1: Non-alloy steel tubes with specified room temperature properties
Specifies the technical delivery conditions for two qualities, T1 and T2, of seamless tubes of circular cross section, with specified room temperature properties, made of non-alloy quality steel…

DIN EN 10216-2

Seamless steel tubes for pressure purposes – Technical delivery conditions – Part 2: Non alloy and alloy steel tubes with specified elevated temperature properties; German version EN 10216-2:2002+A2:2007
The document specifies the technical delivery conditions in two test categories for seamless tubes of circular cross section, with specified elevated temperature properties, made of non-alloy and alloy steel.

DIN EN 10216-3

Seamless steel tubes for pressure purposes -Technical delivery conditions – Part 3: Alloy fine grain steel tubes
Specifies the technical delivery conditions in two categories for seamless tubes of circular cross section, made of weldable alloy fine grain steel

DIN EN 10216-4

Seamless steel tubes for pressure purposes – Technical delivery conditions -Part 4: Non-alloy and alloy steel tubes with specified low temperature properties
Specifies the technical delivery conditionsin two categories for seamless tubes of circular crossection, made with specified low temperature properties, made of non-alloy and alloy steel…

DIN EN 10216-5

Seamless steel tubes for pressure purposes – Technical delivery conditions-Part 5: Stainless steel tubes; German version EN 10216-5:2004, Corrigendum to DIN EN 10216-5:2004-11; German version EN 10216-5:2004/AC:2008

This Part of this European Standard specifies the technical delivery conditions in two test categories for seamless tubes of circular cross-section made of austenitic (including creep resisting steels) and austenitic-ferritic stainless steel which are applied for pressure and corrosion resisting purposes at room temperature, at low temperatures or at elevated temperatures. It is important that the purchaser, at the time of enquiry and order, takes in account the requirements of the relevant national legal regulations for the intended application.

Marking:

• Pipes are supplied with marking according to standard and customer request.
• Marking is paint on the ends of pipes.
• The same data, as well as additional information per customer’s request, is indicated on the bundle’s tags.

Delivery:

• Pipes are supplied in hexagonal bundles or round bundles tied with steel strip.
• Weight of bundle – up to 5000 kg upon request of customer.
• Each bundle is furnished with three tags.

Seamless steel tubes for pressure purposes – Technical delivery conditions – Part 2: Non alloy and alloy steel tubes with specified elevated temperature properties; German version EN 10216-2:2002+A2:2007

The document specifies the technical delivery conditions in two test categories for seamless tubes of circular cross section, with specified elevated temperature properties, made of non-alloy and alloy steel.

View the data of the steel grade as below:
EN 10216-2 Chemical Composition:

Steel grade		C	Si	Mn	p	s	Cr	Mo	Ni	Altot	Cu	Ti max
Steel name	Steel   number				max	max
P195GH	1.0348	=0.13	=0.35	=0.70	0.025	0.020	=0.30	=0.08	=0.30	=0.020	=0.30	0.040
P235GH	1.0345	=0.16	=0.35	=1.20	0.025	0.020	=0.30	=0.08	=0.30	=0.020	=0.30	0.040
P265GH	1.0425	=0.20	=0.40	=1.40	0.025	0.020	=0.30	=0.08	=0.30	=0.020	=0.30	0.040
16Mo3	1.5415	0.12-0.20	0.40-0.90	0.40-0.90	0.025	0.020	=0.30	0.25-0.35	=0.30	=0.040	=0.30
14MoV6-3	1.7715	0.10-0.15	0.15-0.35	0.40-0.70	0.025	0.020	0.30-0.60	0.40-0.50	=0.30	=0.040	=0.30
13CrMo4-5	1.7335	0.10-0.17	=0.15	0.40-0.70	0.025	0.020	0.70-1.15	0.40-0.60	=0.30	=0.040	=0.30
10CrMo9-10	1.7380	0.08-0.14	0.08-0.14	0.30-0.70	0.025	0.020	2.00-2.50	0.90-1.10	=0.30	=0.040	=0.30
25CrMo4	1.7218	0.22-0.29	0.22-0.29	0.60-0.90	0.025	0.020	0.90-1.20	0.15-0.30	=0.30	=0.040	=0.30
15NiCuMoNb5-6-4	1.6368	=0.17	=0.17	0.80-1.20	0.025	0.020	=0.30	0.25-0.50	1.00-1.30	=0.050	0.50-0.80
X10CrMoVNb9-1	1.4903	0.08-0.12	0.08-0.12	0.30-0.60	0.025	0.020	8.00-9.50	0.85-1.05	=0.40	=0.040	=0.30

a Elements not included in this Table shall not be intentionally added to the steel without the agreement of the purchaser, except for elemnents 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 This requirement is not applicable provided the steel contains a sufficient amount of other nitrogen binding elements which shall be reported. When using titanium, the producer shall verify that (Al+Ti/2)=0,020%

c Option 2: In order to facilitate subsequent forming operations, an agreed maximum copper content lower than indicated and an agreed specified maximum tin content shall apply

d The content of these elements need not to be reported unless intentionally added to the cast

e For wall thickness=30 mm the carbon content may be increased by 0.02% for cast and product analysis

f The upper carbon value of 0,23 % shall not be exceeded for product analysis

EN 10216-2  Mechanical Property:

Steel grade		Tensile   properties at room temperature							Impact   properties a b
Steel name	Steel   Number	Upper   yield strength or proof strength ReH or Rp0.2 for Wall Thickness T Min.				Tensile    Strength  Rm	Elongation A min. % a		Minimum   average absorbed energy KV J at a temperature of ?
		T=16	16<T=40	40<T=60	60<T=100		l	t	l			t
		MPa	MPa	MPa	MPa	MPa			20	0	-10	20	0
P195GH	1.0348	195				320-440	27	25		40 c	28 d		27c
P235GH	1.0345	235	225	215		360-500	25	23		40 c	28 d		27c
P265GH	1.0425	265	255	245		410-570	23	21		40 c	2s d		27C
16Mo3	1.5415	280	270	260		450-600	22	20	40 c			27 c
14MoV6-3	1.7715	320	320	310		460-610	20	18	40 c f			27 c
13CrMo4-5	1.7335	290	290	280		440-590	22	20	40 c			27 c
10CrMo9-10	1.7380	280	280	270		480-630	22	20	40 c			27 c
25CrMo4	1.7218	345	345	345		540-690	18	15	40 c f			27 c
15NiCuMoNb5-6-4	1.6368	440	440	440	440e	610-780	19	17	40 c f			27 c
X10CrMoVNb9-1	1.4903	450	450	450	450	630-830	19	17	40 c f			27 c

a I = longitudinal t = transverse
b To be verified when options 4 and/or 5 are/is specified, unless footnote f) applies
c Option 4: Impact energy shall be verified.
d Opfion 5: Longitudinal impact energy shall be verified.
e For wall thickness 60 mm< T =80mm
f Impact test mandatory for wall thickness T =16mm

EN 10216-2 boiler tube Heat Treatment:

Steel grade		Heat treatment a	Austenizing		Tempering
Steel	Steel		Temperature	Cooling   Medium	Temperature	Cooling   medium
name	number		°C		°C
P195GH	1.0348	+N b	880   to 940	Air	–	–
P235GH	1.0345	+N b	880   to 940	Air	–	–
P265GH	1.0425	+N b	880   to 940	Air	–	–
16Mo3	1.5415	+N b	890   to 950	Air	–	–
14MoV6-3	1.7715	+NT b c	930   to 990	Air	680   to730	air
13CrMo4-5	1.7335	+NT b c	900   to 960	Air	660   to 730	air
10CrMo9-10	1.738	+NT b c	900   to 960	Air	680   to 750	air
25CrMo4	1.7218	+QT	860   to 900	Air or Liquid	620   to 680	air
15NiCuMoNb5-6-4	1.6368	+NT   c	880   to 980	Air	580   to 680	air
X10CrMoVNb9-1	1.4903	+NT   c	1040   to 1090	air	730   to 780	air

a +N = Normalising, +NT = Normalising + Tempering, +QT = Quenching + Tempering (air or liquid), +I = Isothermal Annealing.
b Normalising includes Normalising Forming.

c For these steel grades it may be necessary in the case of wall thickness T above 25 mm or T/D >0,15 to apply quenching and tempering in order to achieve the intended structure and material properties. The decision shall be left to the discretion of the manufacturer but shall be stated to the customer at the time of enquiry and order. Steel tubes treated in such a way shall be designated by the steel name supplemented by the symbol +QT.

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Pipes for construction applications