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

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 STANDARDS	EN 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 STANDARDS	GOST 8732

AMERICAN STANDARDS	ASME B36.10

Seamless steel tubes – for low temperature pressure services

Dimensional	standard	SIZES (OD x WT)
EN	10216-4 (10220)	10.2 x 0.5 – 139.7 x 16.0 mm
DIN	2448	10.2 x 0.5 – 139.7 x 16.0 mm
BS	3600	10.2 x 0.5 – 139.7 x 16.0 mm
STN	42 5715	10.2 x 0.5 – 139.7 x 16.0 mm
STN	42 5716	10.2 x 0.5 – 139.7 x 16.0 mm
STN	42 6710	4.0 x 0.5 – 125.0 x 12.5 mm
STN	42 6711	4.0 x 0.5 – 125.0 x 12.5 mm
NF A	49-215	10.2 x 0.5 – 139.7 x 16.0 mm
UNI	4991	10.2 x 0.5 – 139.7 x 16.0 mm
ASTM	A334	31.75 x 2.34 – 139.7 x 12.7 mm [1.250 x 0.088 – 5.500 x 0.500 in] [13 – 7/0 GA]
ASME	ANSI B36.10	10.3 x 1.24 – 114.3 x 13.49 mm [0.405 x 0.049 – 4.500 x 0.531 in] [1/8 – 4 NPS]
ASME	SA334	31.75 x 2.34 – 139.7 x 12.7 mm [1.250 x 0.088 – 5.500 x 0.500 in] [13 – 7/0 GA]

Seamless steel tubes – for room temperature pressure service

Dimensional	standard	SIZES (OD x WT)
EN	10216-1 (10220)	10.2 x 0.5 – 139.7 x 16.0 mm
DIN	2391-1	4.0 x 0.5 – 125.0 x 12.5 mm
DIN	2448	10.2 x 0.5 – 139.7 x 16.0 mm
BS	3600	10.2 x 0.5 – 139.7 x 16.0 mm
STN	42 5715	10.2 x 0.5 – 139.7 x 16.0 mm
STN	42 5716	10.2 x 0.5 – 139.7 x 16.0 mm
NF A	49-112	10.2 x 0.5 – 139.7 x 16.0 mm
NF A	49-210	10.2 x 0.5 – 139.7 x 16.0 mm
UNI	7287	10.2 x 0.5 – 139.7 x 16.0 mm
PN – H	74219	10.2 x 0.5 – 139.7 x 16.0 mm
GOST	8732	20.0 x 2.5 – 140.0 x 16.0 mm
ASTM	A53	10.3 x 1.24 – 114.3 x 13.49 mm [0.405 x 0.049 – 4.500 x 0.531 in] [1/8 – 4 NPS]
JIS	G3454	10.5 x 1.7 – 114.3 x 9.5 mm
JIS	G3455	10.5 x 1.7 – 114.3 x 9.5 mm

Seamless steel tubes – for high-pressure service – boiler

Dimensional	standard	SIZES (OD x WT)
EN	10216-2 (10220)	10.2 x 0.5 – 139.7 x 16.0 mm
DIN	2391-1	4.0 x 0.5 – 120.0 x 13.0 mm
DIN	2448	10.2 x 0.5 – 139.7 x 16.0 mm
BS	3059-1	10.2 x 0.5 – 139.7 x 16.0 mm
BS	3059-2	10.2 x 0.5 – 139.7 x 16.0 mm
BS	3602-1	10.2 x 0.5 – 139.7 x 16.0 mm
BS	3604-1	10.2 x 0.5 – 139.7 x 16.0 mm
STN	42 5715	10.2 x 0.5 – 139.7 x 16.0 mm
STN	42 5716	10.2 x 0.5 – 139.7 x 16.0 mm
ČSN	42 6710	4.0 x 0.5 – 125.0 x 12.5 mm
ČSN	42 6711	4.0 x 0.5 – 125.0 x 12.5 mm
NF A	49-211	10.2 x 0.5 – 139.7 x 16.0 mm
NF A	49-213	10.2 x 0.5 – 139.7 x 16.0 mm
PN – H	74252	10.2 x 0.5 – 139.7 x 16.0 mm
GOST	8732	20.0 x 2.5 – 140.0 x 16.0 mm
GOST	8734	4.0 x 0.5 – 125.0 x 12.5 mm
ASTM	A192	31.75 x 2.34 – 139.7 x 12.7 mm [1.250 x 0.088 – 5.500 x 0.500 in] [13 – 7/0 GA]
ASTM	A209	31.75 x 2.34 – 139.7 x 12.7 mm [1.250 x 0.088 – 5.500 x 0.500 in] [13 – 7/0 GA]
ASTM	A210	31.75 x 2.34 – 139.7 x 12.7 mm [1.250 x 0.088 – 5.500 x 0.500 in] [13 – 7/0 GA]
ASTM	A213	31.75 x 2.34 – 139.7 x 12.7 mm [1.250 x 0.088 – 5.500 x 0.500 in] [13 – 7/0 GA]
ASTM	A335	31.75 x 2.34 – 139.7 x 12.7 mm [1.250 x 0.088 – 5.500 x 0.500 in] [13 – 7/0 GA]
ASTM	A556	31.75 x 2.34 – 139.7 x 12.7 mm [1.250 x 0.088 – 5.500 x 0.500 in] [13 – 7/0 GA]
ASTM	ANSI B36.10	10.3 x 1.24 – 114.3 x 13.49 mm [0.405 x 0.049 – 4.500 x 0.531 in] [1/8 – 4 NPS]
JIS	G3456	10.5 x 1.7 – 114.3 x 9.5 mm
JIS	G3458	10.5 x 1.7 – 114.3 x 9.5 mm
JIS	G3461	15.9 x 1.2 – 114.3 x 9.5 mm
JIS	G3462	15.9 x 1.2 – 114.3 x 9.5 mm
UNI	ISO 1129	10.2 x 0.5 – 139.7 x 16.0 mm
GOST	TU 14-3-460	4.0 x 0.5 – 125.0 x 12.5 mm

Seamless steel tubes – from fine grain steel

Dimensional	standard	SIZES (OD x WT)	Dimensional table
EN	10216-3 (10220)	10.2 x 0.5 – 139.7 x 16.0 mm
DIN	2448	4.0 x 0.5 – 125.0 x 12.5 mm

Steel grades for tubes intended for pressure equipment

Steel for pressure equipment, used at higher temperatures – Boiler tubes

EN 10216-2	P195GH, 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 106	Grade A, Grade B, Grade C
ASTM A 209	Grade T1, Grade T1a, Grade T1b
ASTM A 210	Grade A-1, Grade C
ASTM A 556	Grade A2, Grade B2, Grade C2
ASTM A 335	Grade T/P11, Grade T/P12, Grade T/P22, Grade T/P24
ASTM A 213	Grade T/P11, Grade T/P12, Grade T/P22, Grade T/P24

Steel for tubes intended for pressure equipment

EN 10216-1	P195TR1, P235TR1, P265TR1, P195TR2, P235TR2, P265TR2.
ASTM A 53	Grade A, Grade B

Steel for tubes made from fine-grained steel

EN 10216-3	P355N, P460N, P355NH, P460NH, P275NL1, P355NL1, P460NL1, P275NL2, P355NL2, P460NL2.

Steel tubes for low temperatures

EN 10216-4	P215NL, 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

Seamless steel tubes – for low temperature pressure services

Standard	TDC	Steel grade (open product)	Dimensional standard
STN	42 0165	11 449	42 6710
STN	42 0165	11 503	42 6711
STN	42 0165	11 448	42 6711
STN	42 0165	11 419	42 6710
STN	42 0165	11 419	42 6711
STN	42 0165	11 503	42 6710
STN	42 0165	11 448	42 6710
STN	42 0165	11 369	42 6711
STN	42 0165	11 449	42 6711
STN	42 0165	11 369	42 6710
ČSN	42 0165	11 448	42 6710
ČSN	42 0165	11 449	42 6710
ČSN	42 0165	11 449	42 6711
ČSN	42 0165	11 503	42 6711
ČSN	42 0165	11 503	42 6710
ČSN	42 0165	11 448	42 6711
ČSN	42 0165	11 419	42 6710
ČSN	42 0165	11 369	42 6710
ČSN	42 0165	11 419	42 6711
ČSN	42 0165	11 369	42 6711
ASME	SA333/SA999	Grade 6	ANSI B36.10
ASME	SA333/SA999	Grade 3	ANSI B36.10
ASME	SA333/SA999	Grade 1	ANSI B36.10
ASTM	A524/A530	A 524	ANSI B36.10
ASTM	A333/A999	Grade 7	ANSI B36.10
ASME	SA333/SA999	Grade 7	ANSI B36.10
ASTM	A333/A999	Grade 6	ANSI B36.10
ASTM	A333/A999	Grade 1	ANSI B36.10
ASTM	A333/A999	Grade 3	ANSI B36.10
ASME	SA334/SA1016	Grade 7	SA334
ASTM	A334/A1016	Grade 7	A334
ASTM	A334/A1016	Grade 3	A334
ASTM	A334/A1016	Grade 6	A334
ASME	SA334/SA1016	Grade 1	SA334
ASME	SA334/SA1016	Grade 6	SA334
ASME	SA334/SA1016	Grade 3	SA334
ASTM	A334/A1016	Grade 1	A334
STN	42 0165	11 503	42 5715
STN	42 0165	11 369	42 5716
STN	42 0165	11 449	42 5716
STN	42 0165	11 448	42 5715
STN	42 0165	11 369	42 5715
STN	42 0165	11 503	42 5716
STN	42 0165	11 419	42 5716
STN	42 0165	11 419	42 5715
STN	42 0165	11 448	42 5716
STN	42 0165	11 449	42 5715
UNI	5949	C20	4991
UNI	5949	C15	4991
ČSN	42 0165	11 369	42 5716
BS	3603	430 LT	3600
EN	10216-4	P265NL	10216-4 (10220)
NF A	49-215	TU 10N14	49-215
NF A	49-215	TU 10N9	49-215
ČSN	42 0165	11 449	42 5715
ČSN	42 0165	11 419	42 5716
ČSN	42 0165	11 448	42 5716
ČSN	42 0165	11 503	42 5716
ČSN	42 0165	11 369	42 5715
ČSN	42 0165	11 503	42 5715
EN	10216-4	P215NL	10216-4 (10220)
NF A	49-215	TU 42BT	49-215
DIN	17173	10Ni14	2448
ČSN	42 0165	11 419	42 5715
DIN	17173	TT St35N	2448
ČSN	42 0165	11 448	42 5715
ČSN	42 0165	11 449	42 5716
BS	3603	503LT	3600

Seamless steel tubes – for room temperature pressure service

Standard	TDC	Steel grade (open product)	Dimensional standard
DIN	1630	St 37.4	2391-1
DIN	1630	St 44.4	2391-1
DIN	1630	St 52.4	2391-1
JIS	G3454	STPG410	G3454
JIS	G3455	STS410	G3455
JIS	G3455	STS370	G3455
JIS	G3454	STPG370	G3454
JIS	G3455	STS480	G3455
ASTM	A53/A530	Grade A	A53
ASTM	A53/A530	Grade B	A53
GOST	8731 / 1050	20	8732
GOST	8731 / 1050	10	8732
STN	42 0250	12 060	42 5716
STN	42 0250	11 353	42 5716
STN	42 0250	11 453	42 5716
STN	42 0250	11 503	42 5716
STN	42 0250	12 040	42 5715
STN	42 0250	11 523	42 5716
STN	42 0250	11 353	42 5715
STN	42 0250	11 453	42 5715
STN	42 0250	11 523	42 5715
STN	42 0250	12 050	42 5716
STN	42 0250	12 060	42 5715
STN	42 0250	11 550	42 5715
STN	42 0250	12 050	42 5715
STN	42 0250	11 650	42 5715
STN	42 0250	11 550	42 5716
STN	42 0250	11 650	42 5716
STN	42 0250	11 503	42 5715
STN	42 0250	12 040	42 5716
ČSN	42 0250	11 523	42 5716
ČSN	42 0250	11 453	42 5715
ČSN	42 0250	12 050	42 5716
ČSN	42 0250	11 503	42 5715
ČSN	42 0250	12 050	42 5715
ČSN	42 0250	11 550	42 5716
ČSN	42 0250	11 550	42 5715
ČSN	42 0250	12 040	42 5716
ČSN	42 0250	12 040	42 5715
ČSN	42 0250	11 650	42 5715
ČSN	42 0250	12 060	42 5715
ČSN	42 0250	12 060	42 5716
ČSN	42 0250	11 650	42 5716
NF A	49-210	TU 37B	49-210
PN – H	74219 / 84023	R35	74219
NF A	49-112	TU E235A	49-112
PN – H	74219 / 84018	18G2A	74219
ČSN	42 0250	11 353	42 5715
UNI	7287	Fe 320	7287
EN	10216-1	P265TR1	10216-1 (10220)
EN	10216-1	P265TR2	10216-1 (10220)
DIN	1629	St 52.0	2448
BS	3601	360	3600
ČSN	42 0250	11 353	42 5716
EN	10216-1	P235TR2	10216-1 (10220)
EN	10216-1	P195TR1	10216-1 (10220)
NF A	49-112	TU E220A	49-112
PN – H	74219 / 84023	R45	74219
ČSN	42 0250	11 453	42 5716
EN	10216-1	P195TR2	10216-1 (10220)
BS	3601	430	3600
EN	10216-1	P235TR1	10216-1 (10220)
NF A	49-210	TU 42B	49-210
DIN	1629	St 44.0	2448
ČSN	42 0250	11 523	42 5715
ČSN	42 0250	11 503	42 5716
DIN	1629	St 37.0	2448
PN – H	74219 / 84023	R55	74219

Seamless steel tubes – for high-pressure service – boiler

Standard	TDC	Steel grade (open product)	Dimensional standard
DIN	17175	15Mo3	2391-1
DIN	17175	14MoV63	2391-1
DIN	17175	13CrMo44	2391-1
DIN	17175	19Mn5	2391-1
DIN	17175	St 35.8	2391-1
DIN	17175	10CrMo9 10	2391-1
DIN	17175	St 45.8	2391-1
DIN	17175	17Mn4	2391-1
ČSN	42 0251	12 021	42 6710
ČSN	42 0251	15 128	42 6710
ČSN	42 0251	12 025	42 6710
ČSN	42 0251	15 121	42 6711
ČSN	42 0251	12 022	42 6710
ČSN	42 0251	12 025	42 6711
ČSN	42 0251	15 020	42 6710
ČSN	42 0251	12 022	42 6711
ČSN	42 0251	15 020	42 6711
ČSN	42 0251	11 418	42 6711
ČSN	42 0251	15 313	42 6710
ČSN	42 0251	11 368	42 6711
ČSN	42 0251	11 368	42 6710
ČSN	42 0251	15 121	42 6710
ČSN	42 0251	15 128	42 6711
STN	42 0251	15 128	42 6710
STN	42 0251	11 418	42 6711
STN	42 0251	15 128	42 6711
STN	42 0251	15 313	42 6711
STN	42 0251	15 313	42 6710
ČSN	42 0251	12 021	42 6711
ČSN	42 0251	15 313	42 6711
ČSN	42 0251	11 418	42 6710
STN	42 0251	12 022	42 6710
STN	42 0251	15 020	42 6710
STN	42 0251	11 418	42 6710
STN	42 0251	11 368	42 6710
STN	42 0251	12 025	42 6711
STN	42 0251	15 121	42 6710
GOST	TU 14-3-460 / 4543	10G2	TU 14-3-460
STN	42 0251	12 021	42 6710
STN	42 0251	11 368	42 6711
GOST	TU 14-3-190 / 1050	10	8734
STN	42 0251	12 021	42 6711
GOST	TU 14-3-460 / 4543	15ChM	TU 14-3-460
GOST	TU 14-3-190 / 1050	20	8734
STN	42 0251	12 022	42 6711
STN	42 0251	15 121	42 6711
STN	42 0251	12 025	42 6710
GOST	TU 14-3-460 / 20072	12Ch1MF	TU 14-3-460
STN	42 0251	15 020	42 6711
JIS	G3458	STPA20	G3458
JIS	G3456	STPT480	G3456
JIS	G3458	STPA12	G3458
JIS	G3456	STPT370	G3456
JIS	G3458	STPA22	G3458
JIS	G3458	STPA23	G3458
JIS	G3458	STPA24	G3458
JIS	G3456	STPT410	G3456
JIS	G3461	STB340	G3461
JIS	G3462	STBA23	G3462
JIS	G3462	STBA24	G3462
JIS	G3462	STBA12	G3462
JIS	G3462	STBA22	G3462
JIS	G3462	STBA20	G3462
JIS	G3461	STB510	G3461
JIS	G3461	STB410	G3461
JIS	G3462	STBA13	G3462
ASTM	A106/A530	Grade A	ANSI B36.10
ASTM	A106/A530	Grade B	ANSI B36.10
ASTM	A106/A530	Grade C	ANSI B36.10
ASTM	A213/A1016	T12	A213
ASTM	A335/A999	P2	A335
ASTM	A 213/A1016	T91	A213
ASTM	A335/A999	P21	A335
ASTM	A335/A999	P22	A335
ASTM	A335/A999	P11	A335
ASTM	A213/A1016	T11	A213
ASTM	A213/A1016	T2	A213
ASTM	A335/A999	P91	A335
ASTM	A335/A999	P1	A335
ASTM	A213/A1016	T21	A213
ASTM	A213/A1016	T22	A213
ASTM	A556/A450	C2	A556
ASTM	A209/A1016	T1b	A209
ASTM	A556/A450	A2	A556
ASTM	A335/A999	P12	A335
ASTM	A335/A999	P24	A335
ASTM	A209/A1016	T1	A209
ASTM	A210/A450	Grade A-1	A210
ASTM	A556/A450	B2	A556
ASTM	A213/A1016	T24	A213
ASTM	A209/A1016	T1a	A209
ASTM	A210/A450	Grade C	A210
ASTM	A192/A450	A 192	A192
ASTM	A213/A1016	T5	A213
GOST	8731 / 1050	20	8732
GOST	8731 / 1050	10	8732
STN	42 0251	11 368	42 5716
BS	3059-2	620-440	3059-2
NF A	49-213	TU 15CD2-05	49-213
ČSN	42 0251	12 025	42 5716
ČSN	42 0251	11 368	42 5716
ČSN	42 0251	12 021	42 5716
ČSN	42 0251	15 020	42 5716
ČSN	42 0251	15 128	42 5716
ČSN	42 0251	11 418	42 5716
ČSN	42 0251	12 022	42 5716
ČSN	42 0251	15 313	42 5716
ČSN	42 0251	15 121	42 5716
EN	10216-2	X11CrMo5+I	10216-2 (10220)
EN	10216-2	P265GH	10216-2 (10220)
EN	10216-2	7CrWVMoNb9-6	10216-2 (10220)
EN	10216-2	X10CrMoVNb9-1	10216-2 (10220)
EN	10216-2	7CrMoVTiB10-10	10216-2 (10220)
EN	10216-2	X11CrMo5+NT2	10216-2 (10220)
BS	3604-1	620-440	3604-1
EN	10216-2	11CrMo9-10+QT	10216-2 (10220)
NF A	49-211	TUE 220	49-211
UNI	5462	C14	ISO 1129
EN	10216-2	10CrMo5-5+NT	10216-2 (10220)
EN	10216-2	25CrMo4	10216-2 (10220)
NF A	49-213	TU 10CD9-10	49-213
EN	10216-2	10CrMo9 10	10216-2 (10220)
NF A	49-213	TU 10CD5-05	49-213
UNI	5462	12CrMo9 10	ISO 1129
STN	42 0251	15 313	42 5716
UNI	5462	16Mo5	ISO 1129
PN – H	74252 / 84024	13HMF	74252
PN – H	74252 / 84024	15MH	74252
PN – H	74252 / 84024	K18	74252
STN	42 0251	12 025	42 5716
STN	42 0251	15 128	42 5716
DIN	17175	17Mn4	2448
STN	42 0251	15 313	42 5715
PN – H	74252 / 84024	16M	74252
DIN	17175	St 45.8	2448
ČSN	42 0251	12 022	42 5715
EN	10216-2	14MoV6-3	10216-2 (10220)
DIN	17175	St 35.8	2448
ČSN	42 0251	15 121	42 5715
STN	42 0251	11 418	42 5715
NF A	49-213	TU 37c	49-213
EN	10216-2	P235GH	10216-2 (10220)
BS	3059-2	620	3059-2
NF A	49-213	TU 48c	49-213
STN	42 0251	11 368	42 5715
NF A	49-211	TUE 275	49-211
DIN	17175	19Mn5	2448
BS	3604-1	622	3604-1
STN	42 0251	15 121	42 5715
ČSN	42 0251	12 025	42 5715
PN – H	74252 / 84024	K10	74252
NF A	49-213	TU 42c	49-213
ČSN	42 0251	15 128	42 5715
BS	3059-2	243	3059-2
NF A	49-211	TUE 250	49-211
EN	10216-2	13CrMo4-5	10216-2 (10220)
NF A	49-213	TU 15D3	49-213
BS	3059-2	440	3059-2
BS	3604-1	621	3604-1
NF A	49-213	TU 13CD4-04	49-213
STN	42 0251	15 128	42 5715
STN	42 0251	15 020	42 5716
BS	3602-1	430	3602-1
ČSN	42 0251	11 418	42 5715
UNI	5462	14CrMo3	ISO 1129
ČSN	42 0251	15 313	42 5715
BS	3059-1	320	3059-1
STN	42 0251	15 121	42 5716
DIN	17175	14MoV63	2448
STN	42 0251	12 022	42 5715
BS	3059-2	622-490	3059-2
STN	42 0251	15 020	42 5715
DIN	17175	10CrMo9 10	2448
PN – H	74252 / 84024	10H2M	74252
BS	3604-1	660	3604-1
EN	10216-2	16Mo3	10216-2 (10220)
STN	42 0251	12 021	42 5716
EN	10216-2	X11CrMo5+NT1	10216-2 (10220)
BS	3059-2	360	3059-2
STN	42 0251	12 025	42 5715
NF A	49-213	TU 52c	49-213
STN	42 0251	12 021	42 5715
ČSN	42 0251	11 368	42 5715
DIN	17175	15Mo3	2448
STN	42 0251	11 418	42 5716
STN	42 0251	12 022	42 5716
ČSN	42 0251	12 021	42 5715
BS	3602-1	360	3602-1
EN	10216-2	P195GH	10216-2 (10220)
ČSN	42 0251	15 020	42 5715
UNI	5462	C18	ISO 1129
DIN	17175	13CrMo44	2448

Seamless steel tubes – from fine grain steel

Standard	TDC	Steel grade (open product)	Dimensional standard
DIN	17179	WStE 285	2448
DIN	17179	EStE 255	2448
DIN	17179	TStE 285	2448
DIN	17179	EStE 285	2448
DIN	17179	WStE 355	2448
DIN	17179	WStE 255	2448
DIN	17179	TStE 355	2448
DIN	17179	EStE 355	2448
DIN	17179	TStE 255	2448
DIN	17179	WStE 460	2448
DIN	17179	TStE 460	2448
DIN	17179	StE 420	2448
DIN	17179	WStE 420	2448
DIN	17179	EStE 420	2448
DIN	17179	EStE 460	2448
DIN	17179	TStE 420	2448
EN	10216-3	P355NL1	10216-3 (10220)
EN	10216-3	P355NH	10216-3 (10220)
DIN	17179	StE 460	2448
EN	10216-3	P355NL2	10216-3 (10220)
DIN	17179	StE 255	2448
EN	10216-3	P460NL1	10216-3 (10220)
EN	10216-3	P460NH	10216-3 (10220)
EN	10216-3	P275NL1	10216-3 (10220)
EN	10216-3	P355N	10216-3 (10220)
EN	10216-3	P460N	10216-3 (10220)
DIN	17179	StE 355	2448
EN	10216-3	P460NL2	10216-3 (10220)
DIN	17179	StE 285	2448
EN	10216-3	P275NL2	10216-3 (10220)

Steel comparison according to DIN and EN standards.

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

DIN 17179


Type	Marking	Steel grades
Basic	StE	255, 285, 355, 420, 460
High – temperature	WStE	255, 285, 355, 420, 460
Low – temperature	TStE	255, 285, 355, 420, 460
Low – temperature custom	EStE	255, 285, 355, 420, 460

EN 10216 – 3


Marking	Steel	grades
Basic	P-N	355, 460
High – temperature	P-NH	355, 460
Low – temperature	P-NL1	275, 355, 460
Low – temperature custom	P-NL2	275, 355, 460

Poznámka: oceľ v stave Q – zušľachtenom nie sú v prehľade

Length of seamless boiler tubes

Length [m]	for sizes [mm]
5 – 6	D < 60,3
5 – 6 or 10 – 14 (po dohode 22,4)	D => 60,3 and t < 7,1
5 – 6	D => 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 class	EN – testing category
without ultrasound	I	TC1
with ultrasound	III	TC2

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

Boiler tube ends

The tubes with deburred endsor 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.*

Deburring applies to

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.

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.

Certified test reports for boiler tubes

EN 10204: for EN 10294	3.1 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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Boiler tubes – for pressure equipment, used at higher temperatures

Seamless boiler tube and pipe sizes

Seamless steel tubes – for low temperature pressure services

Seamless steel tubes – for room temperature pressure service

Seamless steel tubes – for high-pressure service – boiler

Seamless steel tubes – from fine grain steel

Steel grades for tubes intended for pressure equipment

Seamless steel tubes – for low temperature pressure services

Seamless steel tubes – for room temperature pressure service

Seamless steel tubes – for high-pressure service – boiler

Seamless steel tubes – from fine grain steel

Steel comparison according to DIN and EN standards.

DIN 17179

EN 10216 – 3

Length of seamless boiler tubes

Seamless boiler tube testing

Boiler tube ends

Seamless boiler tubes surface protection

Packaging of seamless boiler tubes

Markings of the tubes and tube bundles

Certified test reports for boiler tubes

Straightness of boiler tubes

Condition of delivery and surface of boiler tubes

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