EN 10297-1:2003 E235, E275, E315, E355 Seamless steel tubes for pressure purposes

Place of Origin Chiina Japan
Brand Name Best Pipeline
Certification API/CE / ISO /TUV
Model Number 1/2''-48''
Minimum Order Quantity 1Tonds
Price 450 usd/tton
Packaging Details According To Customers Demands
Delivery Time 5-8 working days
Payment Terms L/C /TT
Supply Ability 1000000 Tons

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Product Details
Standard API/GB/ DIN/ JIS /GOST Grade A106/A53 /A333/A369
Technique Hot Rolled /Colded Drawn Section Round /Square
Application Bolier Pipes Sample Can Be Send For Free
Certificate CE Place Of China Tianjin/Qingdao /Shanghai
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Product Description

Product Name : Dimensions and weights of seamless tubes according to standards EN, DIN, BS, UNI, NFA, STN, ČSN, GOST, PN-H


Plain-end seamless tubes and pipes
Dimensional standards
EN 10220:2002 “Seamless and welded steel tubes - General tables of dimensions and masses per unit length”
ISO 4200:1991 “Plain-end steel tubes, welded and seamless”
CSN 42 5715:1981 “Hot-rolled seamless steel tube”
CSN 42 5716:1981 “Hot-rolled seamless steel tube with small tolerances”
DIN 2448:1981 “Seamless steel tubes”
GOST 8732:1978 “Hot-rolled seamless steel pipes”
ASME B36.10M:2004 “Welded and hot-rolled seamless steel pipes”
KN 45 1103:19971 “Type III casings” - seamless for deep drilling - sizes
Technical delivery regulations for tubes and pipes of carbon steel
CSN 42 0250:1988 “Hot rolled seamless tubes of class 10 to 16 steels”
CSN 42 0165:1990 “Sheets and pipes of ferrite-pearlite steels with guaranteed impact properties at low temperatures”
DIN 1629:1984 “Seamless circular tubes of non-alloy steels with special quality requirements”
DIN 1630:1984 “Seamless circular tubes of non-alloy steels for extra-high requirements”
DIN 17 121:1984 “Seamless structural steel circular tubes for structural engineering purposes”
ASTM A 53:2004 + ASME SA 53:2004 “Seamless and welded black tubes suitable for zinc dipping”
ASTM A 501:2001 “Hot-formed welded and seamless carbon steel structural tubing”
ASTM A 519:2003 “Seamless carbon and alloy steel mechanical tubing”
NF A 49-112:1987 “Plain-end seamless hot rolled steel tubes with guaranteed room temperature properties
and with special delivery conditions”, all sizes that comply with DIN 2448
GOST 8731:1974 “Hot-rolled seamless steel pipes”
EN 10216-1:2002 + A1:2004 “Seamless steel tubes for pressure purposes” - Technical delivery conditions
- Part 1: Non-alloy steel tubes with specified room temperature properties
EN 20224:2002 “Non-alloy steel tubes and fittings for the conveyance of water and other aqueous liquids”
EN 10297-1:2003 “Seamless steel tubes for mechanical and general engineering purposes”
For tubes and pipes of high-grade carbon steel - for boilers
CSN 42 0251:1989 “Seamless steel tubes with guaranteed properties at elevated temperatures”
DIN 17175:1979 “Seamless steel tubes for elevated temperatures” quality grade I
ASTM A 106:2004 + ASME SA 106:2004 “Standard specification for seamless carbon steel pipe for high temperature service”
ASTM A 192:20021 “Standard specification for seamless carbon steel boiler tubes for high-pressure service”
ASTM A 210:20041 “Standard specification for seamless medium-carbon steel boiler and super heater tubes”
ASTM A 333:2004 + ASME SA 333:2001 “Standard specification for seamless and welded steel pipes for low-temperature service”
ASTM A 530:2004 + ASME SA 530M:2001 “Standard specification for general requirements for specialized carbon and alloy steel pipe”
ASTM A 450:2004 “Standard specification for seamless carbon steel pipe for high temperature service”
NF A 49 - 211:19891 “Seamless plain-end tubes of non-alloy steels for the conveyance of liquids at elevated temperatures”
EN 10208-1,2:1997, 1996 “Steel pipes for pipelines for combustible fluids”
EN 10210-1,2:1994, 1997 “Hot finished structural hollow sections of no-alloy and fine grain steels”
EN 10216-2:2002 + A1:2004 “Seamless steel tubes for pressure purposes” - Technical delivery conditions
- Part 2: Non-alloy and alloy steel tubes with specified elevated temperature properties
EN 10216-3:2002 +A1:2004 “ Seamless steel tubes for pressure purposes “ Part 3 - Alloy and fine grain steel tubes
KN 45 1108:19971 “Casing type III“ - seamless for deep drilling - Technical delivery conditions”
Subject to agreement, the Tube Plant is able to deliver plain-end seamless tubes of both carbon steel and high-grade carbon steel complying with other foreign
standards as long as their dimensions correspond to the dimensional range of tubes made in accordance with DIN 2448, ASME B36.10M and CSN 42 5715
or CSN 42 5716.
Tube dimensions2
EN 10220:2002 (ISO 4200:1991) See the relevant chart
CSN 42 5715 (42 5716):1981 See the relevant chart
DIN 2448:1981, EN 10210-1,2:1994,1997 See the relevant chart
ASTM A 53:2004, ASTM A 106:2004,
ASTM A 333:2004 See the relevant chart
ASTM A 192:20021 ø 21.3 - 127.0 mm, W.T. 2.3 - 20.0 mm
ASTM A 210:20041 ø 21.3 - 127.0 mm, W.T. 2.3 - 12.7 mm
ASTM 519:2003 ø 21.3 - 273.1 mm, W.T. 2.77 - 18.26 mm
NF A 49 - 112:1987, NF A 49 - 211:19891 See the relevant chart, W.T. max. 20
GOST 8732:1978 See the relevant chart
ASME B36.10 M:2004 ø 21.3 - 273.1 mm, W.T. 2.3 - 20.0 mm


Steel grades
CSN 42 0250:1988 11 353.0, 11 353.1, 11 453.0, 11 453.1, 11 523.0, 11 523.13, 11 550.0, 11 550.1, 11 650.0, 11 650.1
CSN 42 0251:1989 12 021.1, 12 022.1
CSN 42 0165:1990 11 369.1, 11 503.11

DIN 1629:1984 St 37.0, St 44.0, St 52.0
DIN 1630:1984 St 37.4, St 44.4, St 52.4
DIN 17121:19844 RSt 37-2, St 37-3, St 44-2, St 44-3, St 52-3
DIN 17175:1979 - Grade I St 35.8, St 45.8
GOST 8731:1974 10, 20, St2, St4
ASTM A 53:2004, ASTM A 106:2004 A, B, C
ASTM A 333:2004 Gr. 1, Gr. 6
ASTM A 192:20021 A
ASTM A 210:20021 A1
ASTM A 501:2001 without marking
ASTM A 519:2003 MT 1010, MT 1015, MT 1020, 1010, 1012, 1015, 1017, 1020, 1518
NF A 49-112:1987 TU E 220A, TU E 235A
NF A 49-211:19891 TU E 220, TU E 250, TU E 275
with each grade 3 variations are possible:
- B (notch toughness testing at +20°C)
- B1 (notch toughness testing at 0°C)
- B2 (notch toughness testing at -20°C)
EN 10208-1,2:19971, 19961 L210GA, L235GA, L245GA, L290GA, L360GA, L245NB, L290NB1, L360NB
EN 10210-1,2:1994, 1997 S235JRH, S275JOH, S275J2H, S355JOH, S355J2H, S275 NH1, S355NH1
EN 10216-1,2,3:2002 + A1:2004 P195TR1, P195TR2, P235TR1, P235TR2, P265TR2, P195GH, P235GH, P265GH
EN 10297-1:2003 E235, E275, E315, E355, P355N, P355NH1, E275K21, E355K21


Plain-end tubes of carbon or high-grade carbon steels are delivered in the following lengths:
Production lengths - 4 - 14 m, length is determined by the producer with respect to the technological potential
Approximate lengths - nominal length is chosen by the customer within the range of production lengths with the maximum tolerance of ±500 mm
(in compliance with DIN 1629, DIN 17 121 and DIN 17 175).
Exact lengths - nominal length is chosen by the customer on the basis of the agreement with the producer.
Max. length of tubes: < ø 60.3 mm 9.5 m
≥ ø 60.3 m 12.5 m in compliance with the technological potential

Pipe finish and end workmanship
Pipes are delivered with the following types of finish:
- scaled outside and inside
- with outside and/or inside zinc coating according to DIN EN 10240:1998 ( diameters up to 114.3 mm only and maximum lenght 7.1 m) - subject to prior agreement
- with outside protective paint for short-term protection
Pipes are delivered with the ends cut off perpendicularly to the pipe axis and de-burred. Other types of finish are subject to agreement with the producer.
Pipes are also delivered with the following types of insulation:
All combinations of the outside and inside finish including surface free of protection can be delivered.


Pipes are tied by wire or tape whereas the number of ties is in compliance with the customer‘s requirement.
Subject to agreement, the pipes can also be delivered in hexagonal bundles.

1: Product Information 


Product name  seamless boiler steel pipe&tube

ASTM A 179 A53 A106,API5L Gr.B X60 X42,Q235B, Q345B, Q345C, 20#,

12Cr1MoV,15CrMo, TP304,316 310S.S235JR ect

Thickness 1-100mm



Outer diameter 6-820 mm
Length 5.8m 6m 12m or as customer demand
Used area

Petroleum,chemical,power, gas, water, metallurgy, shipbuilding, construction

, etc Or as customer demand

Package In bundles, Varnish coating, Ends can be beveled or square cut, End capped
Certification ISO9001.2000, , API, Mill Test Certificate
Thirdparty inspection OMIC,SGS, or as customer demand
Remark We can customer made for special requirement


2: Tolerance in Dimension:

OD GB/T3639(GB8713) DIN2391(EN10305) Our Tolerence Best Quality
4-30mm ±0.10mm ±0.08mm ±0.05mm ±0.02mm
31-40mm ±0.15mm ±0.15mm ±0.05mm ±0.03mm
41-50mm ±0.20mm ±0.20mm ±0.05mm ±0.03mm
51-60mm ±0.25mm ±0.25mm ±0.08mm ±0.03mm
61-70mm ±0.30mm ±0.30mm ±0.10mm ±0.05mm
71-160mm ±0.30mm ±0.30mm ±0.10mm ±0.05mm
Tolerance in WT ±0.12mm ±0.10mm ±0.05mm ±0.03mm
Process Diameter Length Precision Inner Hole Roughness
Cold Rolled 30-100mm ≤12 m H8-H10 0.4-1.6
Cold Draw 30-250mm ≤12 m H8-H10 0.8-1.6
Honing 40-500mm ≤12 m H8-H9 0.4-0.8
Rolling 40-400mm ≤7 m H8 0.4
Inner Diameter H8 H9 H10  


3:Our Services: 

According to the different needs of customers, seriously implement each order, let customers are satisfied


4:Company Information: 

More than 20 years of careful management, customer first, quality first, the company expects to carry out multiple aspects of the level of cooperation with the customer



EN 10297-1:2003 E235, E275, E315, E355 Seamless steel tubes for pressure purposes 0


6: Shipment and packing: 

EN 10297-1:2003 E235, E275, E315, E355 Seamless steel tubes for pressure purposes 1

6:Product Show 

EN 10297-1:2003 E235, E275, E315, E355 Seamless steel tubes for pressure purposes 2EN 10297-1:2003 E235, E275, E315, E355 Seamless steel tubes for pressure purposes 3




7:Delivey conditions:

Material Tensile strength Yield strength Elongation Hardness
Ck20/20#/AISI1020 >520 N/ mm2 >375 N/mm2 >15% >85HB
Ck45/45#/AISI1045 >600 N/ mm2 >520 N/ mm2 >15% >85HB
ST52/16Mn/Q345D >600 N/ mm2 >520 N/ mm2 >15% >85HB
25Mn/STKM 13C-T >600 N/ mm2 >530 N/ mm2 >15% >85HB



  • Standard packing with plastic caps and strapped bundles.
  • Commercial length 2000~10500mm,custom lengths upon request
  • Surface protection