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Boiler tubes – for pressure equipment, used at higher temperatures


Modern power devices that operate with high efficiency require the use of suitable steel tubes, to guarantee their long-term, safe and trouble-free operation. Steel tubes are important structural materials used in these facilities. These tubes are often referred to as boiler tubes.

Zeleziarne Podbrezova a.s. produces a wide range of steel tubes. Tubes for energy facilities are included in the group of tubes for pressure purposes at higher temperatures.

For production and screening, these tubes are placed high demands. Zeleziarne Podbrezova a.s. possesses the necessary certificates of quality management and product certificates.

Boiler tubes - for pressure equipment, used at higher temperatures
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Seamless boiler tube and pipe sizes

OUTER DIAMETER (OD)10,2 – 139,7 mm
(from 26.9 mm manufactured as hot rolled)
WALL THICKNESS (WT)0,5 – 16,0 mm
(from 2.6 mm manufactured as hot rolled)
EUROPEAN STANDARDSEN 10216-2,
DIN 2448,
BS 3059-1, BS 3059-2,
BS 3602-1, BS 3604-1,
NF A 49-211, NF A 49-213,
UNI 4991,
STN a ČSN 42 5715,
STN a ČSN 42 5716,
PN-H 74252
RUSSIAN STANDARDSGOST 8732
AMERICAN STANDARDSASME B36.10
Dimensional standard SIZES (OD x WT) Dimensional table
EN10216-4 (10220)10.2 x 0.5 – 139.7 x 16.0 mm
DIN244810.2 x 0.5 – 139.7 x 16.0 mm
BS360010.2 x 0.5 – 139.7 x 16.0 mm
STN42 571510.2 x 0.5 – 139.7 x 16.0 mm
STN42 571610.2 x 0.5 – 139.7 x 16.0 mm
STN42 67104.0 x 0.5 – 125.0 x 13.0 mm
STN42 67114.0 x 0.5 – 125.0 x 13.0 mm
NF A49-21510.2 x 0.5 – 139.7 x 16.0 mm
UNI499110.2 x 0.5 – 139.7 x 16.0 mm
ASTMA33431.75 x 2.34 – 139.7 x 12.7 mm [1.250 x 0.088 – 5.500 x 0.500 in] [13 – 7/0 GA]
ASMEANSI B36.1010.3 x 1.24 – 114.3 x 13.49 mm [0.405 x 0.049 – 4.500 x 0.531 in] [1/8 – 4 NPS]
ASMESA33431.75 x 2.34 – 139.7 x 12.7 mm [1.250 x 0.088 – 5.500 x 0.500 in] [13 – 7/0 GA]
Dimensional standard SIZES (OD x WT) Dimensional table
EN10216-1 (10220)10.2 x 0.5 – 139.7 x 16.0 mm
DIN2391-14.0 x 0.5 – 125.0 x 13.0 mm
DIN244810.2 x 0.5 – 139.7 x 16.0 mm
BS360010.2 x 0.5 – 139.7 x 16.0 mm
STN42 571510.2 x 0.5 – 139.7 x 16.0 mm
STN42 571610.2 x 0.5 – 139.7 x 16.0 mm
NF A49-11210.2 x 0.5 – 139.7 x 16.0 mm
NF A49-21010.2 x 0.5 – 139.7 x 16.0 mm
UNI728710.2 x 0.5 – 139.7 x 16.0 mm
PN – H7421910.2 x 0.5 – 139.7 x 16.0 mm
GOST873220.0 x 2.5 – 140.0 x 16.0 mm
ASTMA5310.3 x 1.24 – 114.3 x 13.49 mm [0.405 x 0.049 – 4.500 x 0.531 in] [1/8 – 4 NPS]
JISG345410.5 x 1.7 – 114.3 x 9.5 mm
JISG345510.5 x 1.7 – 114.3 x 9.5 mm
Dimensional standard SIZES (OD x WT) Dimensional table
EN10216-2 (10220)10.2 x 0.5 – 139.7 x 16.0 mm
DIN2391-14.0 x 0.5 – 120.0 x 13.0 mm
DIN244810.2 x 0.5 – 139.7 x 16.0 mm
BS3059-110.2 x 0.5 – 139.7 x 16.0 mm
BS3059-210.2 x 0.5 – 139.7 x 16.0 mm
BS3602-110.2 x 0.5 – 139.7 x 16.0 mm
BS3604-110.2 x 0.5 – 139.7 x 16.0 mm
STN42 571510.2 x 0.5 – 139.7 x 16.0 mm
STN42 571610.2 x 0.5 – 139.7 x 16.0 mm
ČSN42 67104.0 x 0.5 – 125.0 x 13.0 mm
ČSN42 67114.0 x 0.5 – 125.0 x 13.0 mm
NF A49-21110.2 x 0.5 – 139.7 x 16.0 mm
NF A49-21310.2 x 0.5 – 139.7 x 16.0 mm
PN – H7425210.2 x 0.5 – 139.7 x 16.0 mm
GOST873220.0 x 2.5 – 140.0 x 16.0 mm
GOST87344.0 x 0.5 – 125.0 x 13.0 mm
ASTMA19231.75 x 2.34 – 139.7 x 12.7 mm [1.250 x 0.088 – 5.500 x 0.500 in] [13 – 7/0 GA]
ASTMA20931.75 x 2.34 – 139.7 x 12.7 mm [1.250 x 0.088 – 5.500 x 0.500 in] [13 – 7/0 GA]
ASTMA21031.75 x 2.34 – 139.7 x 12.7 mm [1.250 x 0.088 – 5.500 x 0.500 in] [13 – 7/0 GA]
ASTMA21331.75 x 2.34 – 139.7 x 12.7 mm [1.250 x 0.088 – 5.500 x 0.500 in] [13 – 7/0 GA]
ASTMA33531.75 x 2.34 – 139.7 x 12.7 mm [1.250 x 0.088 – 5.500 x 0.500 in] [13 – 7/0 GA]
ASTMA55631.75 x 2.34 – 139.7 x 12.7 mm [1.250 x 0.088 – 5.500 x 0.500 in] [13 – 7/0 GA]
ASTMANSI B36.1010.3 x 1.24 – 114.3 x 13.49 mm [0.405 x 0.049 – 4.500 x 0.531 in] [1/8 – 4 NPS]
JISG345610.5 x 1.7 – 114.3 x 9.5 mm
JISG345810.5 x 1.7 – 114.3 x 9.5 mm
JISG346115.9 x 1.2 – 114.3 x 9.5 mm
JISG346215.9 x 1.2 – 114.3 x 9.5 mm
UNIISO 112910.2 x 0.5 – 139.7 x 16.0 mm
GOSTTU 14-3-4604.0 x 0.5 – 125.0 x 13.0 mm
Dimensional standard SIZES (OD x WT) Dimensional table
EN10216-3 (10220)10.2 x 0.5 – 139.7 x 16.0 mm
DIN24484.0 x 0.5 – 125.0 x 13.0 mm

Steel grades for tubes intended for pressure equipment

Steel for pressure equipment, used at higher temperatures – Boiler tubes
EN 10216-2P195GH, P235GH, P265GH, 16Mo3, 14MoV6-3,
7CrWVMoNb9-6, 7CrMoVTiB10-10, 10CrMo5-5,
13CrMo4-5, 10CrMo9-10, 25CrMo4, X11CrMo5+I,
X11CrMo5+NT1, X11CrMo5+NT2, X10CrMoVNb9-1
ASTM A 106Grade A, Grade B, Grade C
ASTM A 209Grade T1, Grade T1a, Grade T1b
ASTM A 210Grade A-1, Grade C
ASTM A 556Grade A2, Grade B2, Grade C2
ASTM A 335Grade T/P11, Grade T/P12, Grade T/P22, Grade T/P24
ASTM A 213Grade T/P11, Grade T/P12, Grade T/P22, Grade T/P24
Steel for tubes intended for pressure equipment
EN 10216-1P195TR1, P235TR1, P265TR1, P195TR2, P235TR2, P265TR2.
ASTM A 53Grade A, Grade B

Steel for tubes made from fine-grained steel
EN 10216-3P355N, P460N, P355NH, P460NH, P275NL1, P355NL1, P460NL1, P275NL2, P355NL2, P460NL2.

Steel tubes for low temperatures
EN 10216-4P215NL, P265NL.
ASTM A/SA 333 (A999)Grade 1, 3, 6, 7
ASTM A/SA 334 (A1016)Grade 1, Grade 6
ASTM A/SA 524 (A530)Grade II
Standard TDC Steel grade (open product)
STN42 0165
STN42 0165
STN42 0165
STN42 0165
STN42 0165
STN42 0165
STN42 0165
STN42 0165
STN42 0165
STN42 0165
ČSN42 0165
ČSN42 0165
ČSN42 0165
ČSN42 0165
ČSN42 0165
ČSN42 0165
ČSN42 0165
ČSN42 0165
ČSN42 0165
ČSN42 0165
ASMESA333/SA999
ASMESA333/SA999
ASMESA333/SA999
ASTMA524/A530
ASTMA333/A999
ASMESA333/SA999
ASTMA333/A999
ASTMA333/A999
ASTMA333/A999
ASMESA334/SA1016
ASTMA334/A1016
ASTMA334/A1016
ASTMA334/A1016
ASMESA334/SA1016
ASMESA334/SA1016
ASMESA334/SA1016
ASTMA334/A1016
STN42 0165
STN42 0165
STN42 0165
STN42 0165
STN42 0165
STN42 0165
STN42 0165
STN42 0165
STN42 0165
STN42 0165
UNI5949
UNI5949
ČSN42 0165
BS3603
EN10216-4
NF A49-215
NF A49-215
ČSN42 0165
ČSN42 0165
ČSN42 0165
ČSN42 0165
ČSN42 0165
ČSN42 0165
EN10216-4
NF A49-215
DIN17173
ČSN42 0165
DIN17173
ČSN42 0165
ČSN42 0165
BS3603
Standard TDC Steel grade (open product)
DIN1630
DIN1630
DIN1630
JISG3454
JISG3455
JISG3455
JISG3454
JISG3455
ASTMA53/A530
ASTMA53/A530
GOST8731 / 1050
GOST8731 / 1050
STN42 0250
STN42 0250
STN42 0250
STN42 0250
STN42 0250
STN42 0250
STN42 0250
STN42 0250
STN42 0250
STN42 0250
STN42 0250
STN42 0250
STN42 0250
STN42 0250
STN42 0250
STN42 0250
STN42 0250
STN42 0250
ČSN42 0250
ČSN42 0250
ČSN42 0250
ČSN42 0250
ČSN42 0250
ČSN42 0250
ČSN42 0250
ČSN42 0250
ČSN42 0250
ČSN42 0250
ČSN42 0250
ČSN42 0250
ČSN42 0250
NF A49-210
PN – H74219 / 84023
NF A49-112
PN – H74219 / 84018
ČSN42 0250
UNI7287
EN10216-1
EN10216-1
DIN1629
BS3601
ČSN42 0250
EN10216-1
EN10216-1
NF A49-112
PN – H74219 / 84023
ČSN42 0250
EN10216-1
BS3601
EN10216-1
NF A49-210
DIN1629
ČSN42 0250
ČSN42 0250
DIN1629
PN – H74219 / 84023
Standard TDC Steel grade (open product)
DIN17175
DIN17175
DIN17175
DIN17175
DIN17175
DIN17175
DIN17175
DIN17175
ČSN42 0251
ČSN42 0251
ČSN42 0251
ČSN42 0251
ČSN42 0251
ČSN42 0251
ČSN42 0251
ČSN42 0251
ČSN42 0251
ČSN42 0251
ČSN42 0251
ČSN42 0251
ČSN42 0251
ČSN42 0251
ČSN42 0251
STN42 0251
STN42 0251
STN42 0251
STN42 0251
STN42 0251
ČSN42 0251
ČSN42 0251
ČSN42 0251
STN42 0251
STN42 0251
STN42 0251
STN42 0251
STN42 0251
STN42 0251
GOSTTU 14-3-460 / 4543
STN42 0251
STN42 0251
GOSTTU 14-3-190 / 1050
STN42 0251
GOSTTU 14-3-460 / 4543
GOSTTU 14-3-190 / 1050
STN42 0251
STN42 0251
STN42 0251
GOSTTU 14-3-460 / 20072
STN42 0251
JISG3458
JISG3456
JISG3458
JISG3456
JISG3458
JISG3458
JISG3458
JISG3456
JISG3461
JISG3462
JISG3462
JISG3462
JISG3462
JISG3462
JISG3461
JISG3461
JISG3462
ASTMA106/A530
ASTMA106/A530
ASTMA106/A530
ASTMA213/A1016
ASTMA335/A999
ASTMA 213/A1016
ASTMA335/A999
ASTMA335/A999
ASTMA335/A999
ASTMA213/A1016
ASTMA213/A1016
ASTMA335/A999
ASTMA335/A999
ASTMA213/A1016
ASTMA213/A1016
ASTMA556/A450
ASTMA209/A1016
ASTMA556/A450
ASTMA335/A999
ASTMA335/A999
ASTMA209/A1016
ASTMA210/A450
ASTMA556/A450
ASTMA213/A1016
ASTMA209/A1016
ASTMA210/A450
ASTMA192/A450
ASTMA213/A1016
GOST8731 / 1050
GOST8731 / 1050
STN42 0251
BS3059-2
NF A49-213
ČSN42 0251
ČSN42 0251
ČSN42 0251
ČSN42 0251
ČSN42 0251
ČSN42 0251
ČSN42 0251
ČSN42 0251
ČSN42 0251
EN10216-2
EN10216-2
EN10216-2
EN10216-2
EN10216-2
EN10216-2
BS3604-1
EN10216-2
NF A49-211
UNI5462
EN10216-2
EN10216-2
NF A49-213
EN10216-2
NF A49-213
UNI5462
STN42 0251
UNI5462
PN – H74252 / 84024
PN – H74252 / 84024
PN – H74252 / 84024
STN42 0251
STN42 0251
DIN17175
STN42 0251
PN – H74252 / 84024
DIN17175
ČSN42 0251
EN10216-2
DIN17175
ČSN42 0251
STN42 0251
NF A49-213
EN10216-2
BS3059-2
NF A49-213
STN42 0251
NF A49-211
DIN17175
BS3604-1
STN42 0251
ČSN42 0251
PN – H74252 / 84024
NF A49-213
ČSN42 0251
BS3059-2
NF A49-211
EN10216-2
NF A49-213
BS3059-2
BS3604-1
NF A49-213
STN42 0251
STN42 0251
BS3602-1
ČSN42 0251
UNI5462
ČSN42 0251
BS3059-1
STN42 0251
DIN17175
STN42 0251
BS3059-2
STN42 0251
DIN17175
PN – H74252 / 84024
BS3604-1
EN10216-2
STN42 0251
EN10216-2
BS3059-2
STN42 0251
NF A49-213
STN42 0251
ČSN42 0251
DIN17175
STN42 0251
STN42 0251
ČSN42 0251
BS3602-1
EN10216-2
ČSN42 0251
UNI5462
DIN17175
Standard TDC Steel grade (open product)
DIN17179
DIN17179
DIN17179
DIN17179
DIN17179
DIN17179
DIN17179
DIN17179
DIN17179
DIN17179
DIN17179
DIN17179
DIN17179
DIN17179
DIN17179
DIN17179
EN10216-3
EN10216-3
DIN17179
EN10216-3
DIN17179
EN10216-3
EN10216-3
EN10216-3
EN10216-3
EN10216-3
DIN17179
EN10216-3
DIN17179
EN10216-3

Steel comparison according to DIN and EN standards.

The fine-grained steels are supplied in 4 types of qualities.

DIN 17179

TypeMarkingSteel grades
BasicStE255, 285, 355, 420, 460
High – temperatureWStE255, 285, 355, 420, 460
Low – temperatureTStE255, 285, 355, 420, 460
Low – temperature customEStE255, 285, 355, 420, 460

EN 10216 – 3

MarkingSteelgrades
BasicP-N355, 460
High – temperatureP-NH355, 460
Low – temperatureP-NL1275, 355, 460
Low – temperature customP-NL2275, 355, 460
Poznámka: oceľ v stave Q – zušľachtenom nie sú v prehľade
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Length of seamless boiler tubes

Length [m]for sizes [mm]
5 – 6D < 60,3
5 – 6 or 10 – 14
(po dohode 22,4)		D => 60,3 and t < 7,1
5 – 6D => 60,3 and t => 7,1
Longer tubes (22 – 24 meters) can be supplied upon agreement.

Types of supplied length of tubes are:
(a) random length,
(b) fixed length ± 500 mm,
(c) exact length

L < 6 m 0 + 10 mm
L = 6 – 12 m 0 + 15 mm
L > 12 m + upon agreement


Seamless boiler tube testing

Only specific testing.

Testing comparison DIN 17175 and EN 10216 – 2:
DIN – quality classEN – testing category
without ultrasoundITC1
with ultrasoundIIITC2

Non–alloy steels: I or III, class TC1 or TC2
Alloy steels: – III, class TC2

Boiler tube ends

The tubes with deburred ends or ends customized for welding.
The tubes with deburred ends
or ends customized for welding.
The ends are vertical to the longitudinal axis and are without burrs.
The ends are vertical to the longitudinal axis and are without burrs.

Deburring applies to

Deburring
  • Tube OD: 26,7 – 114,3 mm
  • Tube WT: 3,2 – 12,5 mm
  • Tube lengths: 4 – 13 m
  • Deburring angle, α (alpha): 30°+5°, 37,5°±2,5°
  • Dimension, c: 1,6 ± 0,8 mm

Seamless boiler tubes surface protection

While ordering, it is necessary to agree upon the method and means of temporarily protecting the surface of the tubes during transportation and storage.

Packaging of seamless boiler tubes


(a) tubes bound with a steel band,
(b) tubes wrapped in plastic sheets, burlap,
(c) tubes in wooden crates.

The tubes are supplied in packages with a circular or hexagonal outline with having weight of 300 – 3 500 kg.

Packaking-PREMIUM-B-into a wooden box in which the tubes are wrapped in foil
Packaking-PREMIUM-B-into a wooden box in which the tubes are wrapped in foil
Packaking-PREMIUM-C-the bandles are wraped into and plastic foil
Packaking-PREMIUM-C-the bandles are wraped into and plastic foil
Packaking-PREMIUM-D-placing the whole shipment into foil+vacuum sealed
Packaking-PREMIUM-D-placing the whole shipment into foil+vacuum sealed
Packaking-STANDARD-bundle tied down by steel strap underlaid by paper
Packaking-STANDARD-bundle tied down by steel strap underlaid by paper
Packaking-STANDARD-PLUS-paper tape and polyethylene foil
Packaking-STANDARD-PLUS-paper tape and polyethylene foil
Packaking-STANDARD-PLUS-the bundle placed into a wooden box
Packaking-STANDARD-PLUS-the bundle placed into a wooden box
Packaking-STANDARD-tubes bound with a steel band
Packaking-STANDARD-tubes bound with a steel band

Markings of the tubes and tube bundles

(a) The tubes with outside diameter up to 51 mm may be marked by a label attached to the tube bundle,

(b) Larger tubes must, at least, have markings at one end of the tube with the necessary data – producer name , standard, steel grade, test category, heat no, inspector’s mark, identification number. Additional marking upon agreement.

Marked by a label
Marked by a label
Marked by stamping the data
Marked by stamping the data
Marked with spray either by a white or black color using InkJet
Marked with spray either by a white or black color using InkJet
Laser marking
Laser marking

Certified test reports for boiler tubes

EN 10204: for EN 102943.1 specific testing
EN 10204: for EN 10297(a) nonspecified testing (only the mandatory tests), 2.2
(b) specified testing – 3.1.B
(c) after agreement – 3.1.A, 3.1.C, 3.2
ASTM A450, A530, A1016, A999,
DIN 50049,
STN 42 0251, ČSN 42 0251		3.1.B, C.

Straightness of boiler tubes

Allowed straightness is 0.0015 multiple of the tube length.

For 1 meter length the allowed straightness is 3 millimeters.

Condition of delivery and surface of boiler tubes

Condition of the tubes meets the requirements of the appropriate standards, i.e. the tubes go through normalized forming or after cold forming goes through normalized annealing.


The tube surface meets the standards’ requirements and the means of manufacturing.



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