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.


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) Dimensional standard
STN42 016542 6710
STN42 016542 6711
STN42 016542 6711
STN42 016542 6710
STN42 016542 6711
STN42 016542 6710
STN42 016542 6710
STN42 016542 6711
STN42 016542 6711
STN42 016542 6710
ČSN42 016542 6710
ČSN42 016542 6710
ČSN42 016542 6711
ČSN42 016542 6711
ČSN42 016542 6710
ČSN42 016542 6711
ČSN42 016542 6710
ČSN42 016542 6710
ČSN42 016542 6711
ČSN42 016542 6711
ASMESA333/SA999ANSI B36.10
ASMESA333/SA999ANSI B36.10
ASMESA333/SA999ANSI B36.10
ASTMA524/A530ANSI B36.10
ASTMA333/A999ANSI B36.10
ASMESA333/SA999ANSI B36.10
ASTMA333/A999ANSI B36.10
ASTMA333/A999ANSI B36.10
ASTMA333/A999ANSI B36.10
ASMESA334/SA1016SA334
ASTMA334/A1016A334
ASTMA334/A1016A334
ASTMA334/A1016A334
ASMESA334/SA1016SA334
ASMESA334/SA1016SA334
ASMESA334/SA1016SA334
ASTMA334/A1016A334
STN42 016542 5715
STN42 016542 5716
STN42 016542 5716
STN42 016542 5715
STN42 016542 5715
STN42 016542 5716
STN42 016542 5716
STN42 016542 5715
STN42 016542 5716
STN42 016542 5715
UNI59494991
UNI59494991
ČSN42 016542 5716
BS36033600
EN10216-410216-4 (10220)
NF A49-21549-215
NF A49-21549-215
ČSN42 016542 5715
ČSN42 016542 5716
ČSN42 016542 5716
ČSN42 016542 5716
ČSN42 016542 5715
ČSN42 016542 5715
EN10216-410216-4 (10220)
NF A49-21549-215
DIN171732448
ČSN42 016542 5715
DIN171732448
ČSN42 016542 5715
ČSN42 016542 5716
BS36033600
Standard TDC Steel grade (open product) Dimensional standard
DIN16302391-1
DIN16302391-1
DIN16302391-1
JISG3454G3454
JISG3455G3455
JISG3455G3455
JISG3454G3454
JISG3455G3455
ASTMA53/A530A53
ASTMA53/A530A53
GOST8731 / 10508732
GOST8731 / 10508732
STN42 025042 5716
STN42 025042 5716
STN42 025042 5716
STN42 025042 5716
STN42 025042 5715
STN42 025042 5716
STN42 025042 5715
STN42 025042 5715
STN42 025042 5715
STN42 025042 5716
STN42 025042 5715
STN42 025042 5715
STN42 025042 5715
STN42 025042 5715
STN42 025042 5716
STN42 025042 5716
STN42 025042 5715
STN42 025042 5716
ČSN42 025042 5716
ČSN42 025042 5715
ČSN42 025042 5716
ČSN42 025042 5715
ČSN42 025042 5715
ČSN42 025042 5716
ČSN42 025042 5715
ČSN42 025042 5716
ČSN42 025042 5715
ČSN42 025042 5715
ČSN42 025042 5715
ČSN42 025042 5716
ČSN42 025042 5716
NF A49-21049-210
PN – H74219 / 8402374219
NF A49-11249-112
PN – H74219 / 8401874219
ČSN42 025042 5715
UNI72877287
EN10216-110216-1 (10220)
EN10216-110216-1 (10220)
DIN16292448
BS36013600
ČSN42 025042 5716
EN10216-110216-1 (10220)
EN10216-110216-1 (10220)
NF A49-11249-112
PN – H74219 / 8402374219
ČSN42 025042 5716
EN10216-110216-1 (10220)
BS36013600
EN10216-110216-1 (10220)
NF A49-21049-210
DIN16292448
ČSN42 025042 5715
ČSN42 025042 5716
DIN16292448
PN – H74219 / 8402374219
Standard TDC Steel grade (open product) Dimensional standard
DIN171752391-1
DIN171752391-1
DIN171752391-1
DIN171752391-1
DIN171752391-1
DIN171752391-1
DIN171752391-1
DIN171752391-1
ČSN42 025142 6710
ČSN42 025142 6710
ČSN42 025142 6710
ČSN42 025142 6711
ČSN42 025142 6710
ČSN42 025142 6711
ČSN42 025142 6710
ČSN42 025142 6711
ČSN42 025142 6711
ČSN42 025142 6711
ČSN42 025142 6710
ČSN42 025142 6711
ČSN42 025142 6710
ČSN42 025142 6710
ČSN42 025142 6711
STN42 025142 6710
STN42 025142 6711
STN42 025142 6711
STN42 025142 6711
STN42 025142 6710
ČSN42 025142 6711
ČSN42 025142 6711
ČSN42 025142 6710
STN42 025142 6710
STN42 025142 6710
STN42 025142 6710
STN42 025142 6710
STN42 025142 6711
STN42 025142 6710
GOSTTU 14-3-460 / 4543TU 14-3-460
STN42 025142 6710
STN42 025142 6711
GOSTTU 14-3-190 / 10508734
STN42 025142 6711
GOSTTU 14-3-460 / 4543TU 14-3-460
GOSTTU 14-3-190 / 10508734
STN42 025142 6711
STN42 025142 6711
STN42 025142 6710
GOSTTU 14-3-460 / 20072TU 14-3-460
STN42 025142 6711
JISG3458G3458
JISG3456G3456
JISG3458G3458
JISG3456G3456
JISG3458G3458
JISG3458G3458
JISG3458G3458
JISG3456G3456
JISG3461G3461
JISG3462G3462
JISG3462G3462
JISG3462G3462
JISG3462G3462
JISG3462G3462
JISG3461G3461
JISG3461G3461
JISG3462G3462
ASTMA106/A530ANSI B36.10
ASTMA106/A530ANSI B36.10
ASTMA106/A530ANSI B36.10
ASTMA213/A1016A213
ASTMA335/A999A335
ASTMA 213/A1016A213
ASTMA335/A999A335
ASTMA335/A999A335
ASTMA335/A999A335
ASTMA213/A1016A213
ASTMA213/A1016A213
ASTMA335/A999A335
ASTMA335/A999A335
ASTMA213/A1016A213
ASTMA213/A1016A213
ASTMA556/A450A556
ASTMA209/A1016A209
ASTMA556/A450A556
ASTMA335/A999A335
ASTMA335/A999A335
ASTMA209/A1016A209
ASTMA210/A450A210
ASTMA556/A450A556
ASTMA213/A1016A213
ASTMA209/A1016A209
ASTMA210/A450A210
ASTMA192/A450A192
ASTMA213/A1016A213
GOST8731 / 10508732
GOST8731 / 10508732
STN42 025142 5716
BS3059-23059-2
NF A49-21349-213
ČSN42 025142 5716
ČSN42 025142 5716
ČSN42 025142 5716
ČSN42 025142 5716
ČSN42 025142 5716
ČSN42 025142 5716
ČSN42 025142 5716
ČSN42 025142 5716
ČSN42 025142 5716
EN10216-210216-2 (10220)
EN10216-210216-2 (10220)
EN10216-210216-2 (10220)
EN10216-210216-2 (10220)
EN10216-210216-2 (10220)
EN10216-210216-2 (10220)
BS3604-13604-1
EN10216-210216-2 (10220)
NF A49-21149-211
UNI5462ISO 1129
EN10216-210216-2 (10220)
EN10216-210216-2 (10220)
NF A49-21349-213
EN10216-210216-2 (10220)
NF A49-21349-213
UNI5462ISO 1129
STN42 025142 5716
UNI5462ISO 1129
PN – H74252 / 8402474252
PN – H74252 / 8402474252
PN – H74252 / 8402474252
STN42 025142 5716
STN42 025142 5716
DIN171752448
STN42 025142 5715
PN – H74252 / 8402474252
DIN171752448
ČSN42 025142 5715
EN10216-210216-2 (10220)
DIN171752448
ČSN42 025142 5715
STN42 025142 5715
NF A49-21349-213
EN10216-210216-2 (10220)
BS3059-23059-2
NF A49-21349-213
STN42 025142 5715
NF A49-21149-211
DIN171752448
BS3604-13604-1
STN42 025142 5715
ČSN42 025142 5715
PN – H74252 / 8402474252
NF A49-21349-213
ČSN42 025142 5715
BS3059-23059-2
NF A49-21149-211
EN10216-210216-2 (10220)
NF A49-21349-213
BS3059-23059-2
BS3604-13604-1
NF A49-21349-213
STN42 025142 5715
STN42 025142 5716
BS3602-13602-1
ČSN42 025142 5715
UNI5462ISO 1129
ČSN42 025142 5715
BS3059-13059-1
STN42 025142 5716
DIN171752448
STN42 025142 5715
BS3059-23059-2
STN42 025142 5715
DIN171752448
PN – H74252 / 8402474252
BS3604-13604-1
EN10216-210216-2 (10220)
STN42 025142 5716
EN10216-210216-2 (10220)
BS3059-23059-2
STN42 025142 5715
NF A49-21349-213
STN42 025142 5715
ČSN42 025142 5715
DIN171752448
STN42 025142 5716
STN42 025142 5716
ČSN42 025142 5715
BS3602-13602-1
EN10216-210216-2 (10220)
ČSN42 025142 5715
UNI5462ISO 1129
DIN171752448
Standard TDC Steel grade (open product) Dimensional standard
DIN171792448
DIN171792448
DIN171792448
DIN171792448
DIN171792448
DIN171792448
DIN171792448
DIN171792448
DIN171792448
DIN171792448
DIN171792448
DIN171792448
DIN171792448
DIN171792448
DIN171792448
DIN171792448
EN10216-310216-3 (10220)
EN10216-310216-3 (10220)
DIN171792448
EN10216-310216-3 (10220)
DIN171792448
EN10216-310216-3 (10220)
EN10216-310216-3 (10220)
EN10216-310216-3 (10220)
EN10216-310216-3 (10220)
EN10216-310216-3 (10220)
DIN171792448
EN10216-310216-3 (10220)
DIN171792448
EN10216-310216-3 (10220)

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

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

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.

Allowed straightness is 0.0015 multiple of the tube length.

For 1 meter length the allowed straightness is 3 millimeters.

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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