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DIN 17175 steel seamless pipes 
Posted on 29/10/2013
10CrMo910, 13CrMo44, 15Mo3, DIN17175, DIN17175 St35.8, DIN17175 St45.8, Seamless pipe, Steel pipe, steel pipes

DIN 17175 steel pipes are used in boiler installations, high-pressure pipelines and tank construction and special machinery for both high temperature and high-pressure devices.
DIN 17175 alloy steel pipe is just a big class,and it has many classifivations. We mainly produce DIN 17175 ST35.8,DIN 17175 ST45.8, and 10CrMo910 steel pipes.
This alloy steel pipe is just a big class,and it has many classifivations.
We mainly produce DIN 17175 ST35.8,DIN 17175 ST45.8, and 10CrMo910 steel pipes.

Steel grade:

DIN17175 St35.8
DIN17175 St45.8
15Mo3
13CrMo44
10CrMo910
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Keywords: 10CrMo910, 13CrMo44, 15Mo3, DIN17175, DIN17175 St35.8, DIN17175 St45.8, Seamless pipe, Steel pipe, steel pipes
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DIN 1629 Seamless Tubes 
Posted on 29/10/2013
DIN 1629 is the standard specifies the Seamless Circular Tubes of Non Alloys Steels with Special Quality Requirements.

DIN 1629 Size range (mm):

Outer Dimensions: 6.0mm-219.0mm
Wall Thickness: 1.0mm-30 mm
Length: max 12000mm
Application:

It is used for manufacturing pipeline,vessel,equipment,pipe fittings .
These tubes are prodominantly used in construction of chemical plant, vessels, pipework and for genearl mechanical engineering purpose.
The main products of steel / steel grade:

DIN1629 ST37.0
DIN1629 ST44.0
DIN1629 ST52.0
Delivery Condition:

Heat treatment,Annealed, Normalized, Normalized and Tempered
Surface treatment:

Oil-dip, Varnish, Passivation, Phosphating, Shot Blasting
Painting as requested.
Categories: Projects
Keywords: DIN1629, DIN1629 ST37.0, DIN1629 ST44.0, DIN1629 ST52.0, seamless steel tubes, Seamless tube
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EN10216-2 Non-alloy and steel tubes 
Posted on 29/10/2013
BS 3059 II 360 requirements specification for carbon, alloy and austenitic stainless steel tubes with specified elevated temperature properties.

Boiler pipe refers to one of the seamless steel pipes. The method of manufacturing boiler tube is the same with seamless steel pipe,but this pipe has a requirement of the steel grades. Depending on the operating temperature, it can be divided into two kinds: general boiler pipes and high-pressure boiler pipes.
A general boiler pipe is able to work below the temperature 450°C. It’s made of hot finished or cold rolled carbon steel pipes. While high-pressure boiler tube is used to produce high-pressure or ultrahigh pressure super heater tube,reheater tube,gas-guide tube,main steam pipe and so on. Our product BS3059-II 360 10 belongs to this boiler tube.Keywords

BS3059-II 360,BS 3059 Part II Gr.360, Boiler Steel Tube, Boiler tube, seamless steel pipe BS3059

Delivery Condition:

Heat treatment,Annealed, Normalized, Normalized and Tempered
Surface treatment:

Oil-dip, Varnish, Passivation, Phosphating, Shot Blasting
Application:

For tubular heat exchangers,condensers and similar heat transfer apparatus.
Categories: Projects
Keywords: boiler tube, boiler tubes, BS3059, BS3059-II 440, seamless steel pipe, Seamless tube, steel tube
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EN 10216-1 Seamless tubes for pressure purposes 
Posted on 29/10/2013
EN 10216-1 Seamless tubes for pressure purposes
EN 10216-1, EN10216-1 P195, EN10216-1 P235, EN10216-1 P265, seamless steel tubes

The following items are the relative products of the EN 10216-1, you can quickly find the EN 10216-1 through the list.

EN 10216-1: Seamless steel tubes for pressure purposes-Technical delivery conditions-Part 1: Non-alloy steel tubes with specified room temperature properties

Size range of EN 10216-1 (mm):

Outer Dimensions: 6.0mm-219.0mm
Wall Thickness: 1.0mm-30 mm
Length: max 12000mm
Application:

It is used for manufacturing pipeline,vessel,equipment,pipe fittings.
The main products of steel / steel grade:

EN10216-1 P195
EN10216-1 P235
EN10216-1 P265
The composition of this steel makes it ideal for applications where elevated working temperatures are the norm and the material is used by fabricators throughout the oil, gas and petrochemical industry.
Categories: Projects
Keywords: EN 10216-1, EN10216-1 P195, EN10216-1 P235, EN10216-1 P265, seamless steel tubes
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Line Pipe for Sour Service 
Posted on 29/10/2013
Line Pipe for Sour Service
line pipe, Line Pipe for Sour Service, line pipes, pipeline, steel line pipe

line pipe

Line Pipe for Sour Service

line pipes

pipeline

steel line pipe

The line pipes can be used for a wide range of petrol and gas transportation under sour service environment.

Standards:

GB/T9711.3
API5l/ISO3183-2007
Application:

For petrol and gas transportation under sour service environment.
Sizes range

1/4 inch Nominal to 24 inchO.D.
Wall Thickness-Schedule 10 through XXH
Line Pipe Steels Used in Sour Service

Line pipe steels used in sour service are prone to hydrogen-induced cracking (HIC) depending on metallurgical and environmental factors.
The metallurgical factors consist of alloying elements, microstructure, strength, segregation, and shape of non-metallic inclusions. Some environmental factors which influence HIC, also known as stepwise cracking (SWC), are the partial pressures of hydrogen sulfide (H2S) and carbon dioxide, temperature, pH of the medium, and aggressive ions, such as chloride. Many failures of sour gas line pipes have occurred around the world as a result of HIC.

Considerable effort has been expended by steel line pipe producers, users, and research organizations to understand the HIC mechanism, to develop a laboratory test method to identify and quantify material susceptibility to HIC, and to produce steels with greater HIC resistance. NACE International has developed a standard test, TM-02-84, for line pipe steels.

The method describes procedures for evaluating the resistance of pipeline steels to SWC induced by H absorption from aqueous sulfide corrosion. The test is applicable to line pipe with wall thicknesses of 5 mm to 30 mm. The procedure consists of exposing unstressed coupons to synthetic seawater saturated with H2S at ambient temperature and pressure at a pH in the range 4.8 to 5.4 for 96 h. The samples are sectioned, polished metallographically, and etched, if necessary, so that cracks can be distinguished from small inclusions, laminations, scratches, or discontinuities. Crack sensitivity ratio (CSR), crack length ratio (CLR), and crack thickness ratio (CTR) are calculated for each section. The average is determined for each coupon. In recent work by Canada’s Centre for Mineral and Energy

Technology in collaboration with the Canadian Standards Association (CSA) Sour Service Task Force, two parameters were determined experimentally for each of 19 line pipe steels:
(1) threshold H concentration (CthH) or the concentration of diffusible H in the steel above which cracking occurs and
(2) threshold pH (pHth) or the pH below which cracking occurs.

Chemical composition for pipe with t ≤25,0 mm (0.984 in)

Mass fraction, based upon heat and product analyses

Steel grade Chemical composition for pipe with t ≤25,0 mm (0.984 in) Carbon equivalent
%, Max % maximum
C b Si Mn b P S V Nb Ti Otherc, d CEllw CEpcm
L245NS or BNS 0,14 0,40 1,35 0,020 0,003e f f 0,04 g 0,36 0,19 h
L290NS or X42NS o,14 0,40 1,35 0,020 0,003e 0,05 0,05 0,04 - 0,36 0,19 h
L320NS or X46NS 0,14 0,40 1,40 0,020 0,003e 0,07 0,05 0,04 g 0,38 0,20 h
L360NS or X52NS 0,16 0,45 1,65 0,020 0,003e 0,10 0,05 0,04 g 0,43 0,22 h
L245QS or BQS 0,14 0,40 1,35 0,020 0,003e 0,04 0,04 0,04 - 0,34 0,19 h
L 290QS or X42QS 0,14 0,40 1,35 0,020 0,003e 0,04 0,04 0,04 - 0,34 0,19 h
L320QS or X46QS 0,15 0,45 1,40 0,020 0,003e 0,05 0,05 0,04 - 0,36 0,20 h
L360QS or X52QS 0,16 0,45 1,65 0,020 0,003e 0,07 0,05 0,04 g 0,39 0,20 h
L390QS or X56QS 0,16 0,45 1,65 0,020 0,003e 0,07 0,05 0,04 g 0,40 0,21 h
L415QS or X60QS 0,16 0,45 1,65 0,020 0,003e 0,08 0,05 0,04 g,i,k 0,41 0,22 h
L450QS or X65QS 0,16 0,45 1,65 0,020 0,003e 0,09 0,05 0,06 g,i,k 0,42 0,22 h
L485QS or X70QS 0,16 0,45 1,65 0,020 0,003e 0,09 0,05 0,06 g,i,k 0,42 0,22 h
Note:

a ) Based upon product analysis (see 9.2.4 and 9.2.5) The CEllw limits apply if the carbon mass fraction is greater than 0,12 % and the CEpcm limits apply if the carbon mass fraction is less than or equal to 0,12 %.
b ) For each reduction of 0,01 % below the specified maximum for carbon, an increase of 0,05 % above the specified maximum for manganese is permissible, up to a maximum increase of 0,20 %.
c ) AI total ≤ 0,060 %; N ≤ 0,012 %; AI/N ≥ 2:1 (not applicable to titanium-killed or titanium-treated steel); Cu ≤ 0,35 % (if agreed ,Cu ≤ 0,10 %); Ni ≤ 0,30 %; Cr ≤ 0,30 %; Mo ≤ 0,15 %; B ≤ 0,0005 %.
d ) For welded pipe where calcium is intentionally added, unless otherwise agreed, Ca/s ≥ 1,5 if S < 0,0015 % For SMLS and welded pipes, the calcium concentration shall be ≤ 0,006 %.
e ) The maximum limit for sulfur concentration may be increased to ≤ 0,008 % for SMLS pipe and, if agreed, to ≤ 0,006 % for welded pipe. For such higher-sulfur levels in welded pipe, lower Ca/s ratios may be agreed.
f ) Unless otherwise agreed, the sum of the niobium and vanadium concentrations shall be ≤ 0,06 %.
g ) The sum of the niobium, vanadium and titanium concentrations shall be ≤ 0,15 %.
h ) For SMLS pipe, the listed value may be increased by 0,03.
i ) If agreed, the molybdenum concentration shall be ≤ 0,35 %.
j ) If agreed, the the chromium concentration shall be ≤ 0,45 %.
k ) If agreed, Cr concentration shall be ≤ 0,45 % and Ni concentration shall be ≤ 0,50 %.

Requirements for the results of tensile tests

Pipe steel grade Yield strength a
Rto,5 Mpa (psi) Tensile strength a
Rm Mpa (psi) Ratio b
Rto,5/Rm Elongation
A %
minimum maximum minimum maximum maximum minimum
L245NS or BNS
L245QS or BQS 245
(35 500) 450
(65 300) 415
(60 200) 760
(110 200) 0,93 API SPEL 5L
L290NS or X42NS
L290QS or X42QS 290
(42 100) 495
(71 800) 415
(60 200) 760
(110 200) 0,93 API SPEL 5L
L320NS or X46NS
L320QS or X46QS 320
(46 400) 525
(76 100) 435
(63 100) 760
(110 200) 0,93 API SPEL 5L
L360NS or X52NS
L360QS or X52QS 360
(52 200) 530
(76 900) 460
(66 700) 760
(110 200) 0,93 API SPEL 5L
L390QS or X56QS 390
(56 600) 545
(79 000) 490
(71 100) 760
(110 200) 0,93 API SPEL 5L
L415QS or X60QS 415
(60 200) 565
(81 900) 520
(75 400) 760
(110 200) 0,93 API SPEL 5L
L450QS or X65QS 450
(65 300) 600
(87 000) 535
(77 600) 760
(110 200) 0,93 API SPEL 5L
L485QS or X70QS 485
(70 300) 635
(92 100) 570
(82 700) 760
(110 200) 0,93 API SPEL 5L
Requirements for the results of tensile tests

For intermediate grades, the difference between the specified maximum yield strength and the specified minimum yield strength shall be as given in the table for the next higher grade, and the difference between the specified minimum tensile strength and the specified minimum yield strength shall be as given in the table for the next higher grade, For intermediate grades, the tensile strength shall be ≤ 760 MPa (110 200 psi).
This limit applies for pipe with D
Categories: Projects
Keywords: line pipe, Line Pipe for Sour Service, line pipes, pipeline, steel line pipe
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High Steel Grade Line Pipes 
Posted on 29/10/2013
High Steel Grade Line Pipes
API 5L, line pipe, line pipes, PIPE, Seamless Line Pipes, ERW Line pipes, LSAW Line Pipes
Line pipes are used in the oil and gas and fluid transmission industries. Whether used for drilling, gathering, distribution or other applications, Yosin Steel Tubular Products line pipe is strong, dependable and versatile.
Our quenching and tempering process yields high-strength steels with superior microstructure properties-ideal for line pipe. Our line pipe grades are used in some of the most demanding field environments, including northern Germany and the north slope of Alaska. Pipe destined for use in these extreme environments is tested to perform at extremely cold temperatures- as low as minus 60 degrees Fahrenheit. We offer pipe in API grades B through X80.

Yosin Steel Products ERW standard and line pipe comes in sizes ranging from 2 3/8 to 20inch outside diameter.

Seamless Line Pipes

Size range: OD1-OD14inch
as per API 5L grade X52, X56, X60, X65, X70, X80, PSL1 & PSL2

ERW Line pipes

Size range: OD14-OD24inch
as per API 5L grade X52, X56, X60, X65, X70, X80, PSL1 & PSL2

LSAW Line Pipes

Size range: OD14-OD60inch
as per API 5L grade X52, X56, X60, X65, X70, X80, PSL1 & PSL2



Categories: Projects
Keywords: API 5L, line pipe, line pipes, PIPE, Seamless Line Pipes, ERW Line pipes, LSAW Line Pipes
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API Spec 5CT Casing and Tubing 
Posted on 29/10/2013
API Spec 5CT Specification for Casing and Tubing, Eighth Edition, Petroleum and natural gas industries-Steel pipes for use as casing or tubing for wells.

The main steel grade of API 5CT:

API 5CT J55
API 5CT K55
API 5CT N80
API 5CT L80
API 5CT P110
Casing pipe end thread type

The International Standard specifies the technical delivery conditions for steel pipes (casing, tubing, plain end casing liners and pup-joints) and accessories. It is applicable to the following connections in accordance with ISO 10422 or API Spec 5B:

- short round thread casing (STC);
- long round thread casing (LC);
- buttress thread casing (BC);
- extreme-line casing (XC);
- non-upset tubing (NU);
- external upset tubing (EU);
- integral joint tubing (IJ).

For such connections, this International Standard specifies the technical delivery conditions for couplings and thread protection.
For pipes covered, the sizes, masses, wall thicknesses, grades and applicable end finishes are defined.
It may also be applied to tubulars with connections not covered by ISO/API standards.

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Keywords: 
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ASTM A335 P5 Alloy Seamless Steel Pipes 
Posted on 29/10/2013
ASTM A335 P5 Alloy Seamless Steel Pipes
ASTM A335, ASTM A335 P5, ASTM A335 P5 alloy pipe, seamless steel pipes, steel pipes

Each length of pipe shall be subjected to the hydrostatic test. Also, each pipe shall be examined by a non-destructive examination method in accordance to the required practices.
The different mechanical test requirements for pipes, namely, transverse or longitudinal tension test, flattening test, and hardness or bend test are presented.Both ends of each crate will indicate the order no., heat no., dimensions, weight and bundles or as requested.

Material & Manufacture

Pipe may be either hot finished or cold drawn with the finishing heat treatment noted below.

Heat Treatment

A / N+T
N+T / Q+T
N+T
Mechanical Tests Specified

Transverse or Longitudinal Tension Test and Flattening Test, Hardness Test, or Bend Test
For material heat treated in a batch-type furnace, tests shall be made on 5% of the pipe from each treated lot. For small lots, at least one pipe shall be tested.
For material heat treated by the continuous process, tests shall be made on a sufficient number of pipe to constitute 5% of the lot, but in no case less than 2 pipe.
Notes for Bend Test:

For pipe whose diameter exceeds NPS 25 and whose diameter to wall thickness ratio is 7.0 or less shall be subjected to the bend test instead of the flattening test.
Other pipe whose diameter equals or exceeds NPS 10 may be given the bend test in place of the flattening test subject to the approval of the purchaser.
The bend test specimens shall be bent at room temperature through 180 without cracking on the outside of the bent portion.
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ASTM Seamless pipes 
Posted on 29/10/2013
ASTM A513 steel seamless pipes, Super heater tubes, Heat Exchanger Tubes, ASTM A106 seamless pipes, ASTM A179 seamless tubes, ASTM A199 Seamless Tubes

The ASTM/ASME seamless steel pipes are extensively applied in petroleum, chemical, power, boiler, and machinery industries. Our prefect products and preferential price have won us customers' trust and consistently favorable comments.
Our products for ASTM/ASME Standard pipes have been listed as follows:

ASTM A513 steel seamless pipes
Super heater tubes
Heat Exchanger Tubes
ASTM A106 seamless pipes
ASTM A179 seamless tubes
ASTM A199 Seamless Tubes
ASTM A53
Steel grade: Grade A, Grade B
Application: Black & Hot Dipped, Zinc-Coated Seamless Pipe
Dimension Range: 0.405-26 inch, 10.3-660 mm

ASTM A 106
Steel Grade: Grade A, Grade B, Grade C
Application: Seamless Carbon Steel Pipe for High-Temperature Service
Dimension Range: NPS 1/8-NPS 48, DN6-DN1200

ASTM A161
Steel Grade: Law Carbon Steel (LC), Grade TI
Application: Seamless Low Carbon and Carbon Molybdenum Steel Still Tubes for Refinery Service
Dimension Range: 2.9 inch, 50.8-228.6 mm

ASTM A179
Application:Seamless Cold-Drawn Law-Carbon Steel Heat-Exchanger nut Condenser Tubes
Dimension Range:1/8-3 inch, 3.2-76.2 mm

ASTM A192
Application: Seamless Carbon Steel Boiler, Tubes For High-Pressure Service
Dimension Range: 1/2-7-7 inch, 12.7-177.8mm

ASTM A199
Steel Grade:T5, T9, T11, T22
Application:Seamless Cold Drawn Intermediate Alloy Steel Heat Exchanger and Condenser Tubes
Dimension Range:1/8-3 inch, 3.2-76.2 mm

ASTM A209
Steel Grade:Grade T1, Grade T1a, Grade T1b
Application:Seamless Carbon-Molybdenum Alloy-Steel Boiler and Super-heater Tubes
Dimension Range:1/2-5 inch, 12.7-127 mm

ASTM A210
Steel Grade:Grade A-1, Grade C
Application:Seamless Medium-Carbon Steel Boiler and Super-heater Tubes
Dimension Range:1/2.5 inch, 12.7-127 mm

ASTM A213
Steel Grade:T2, T5, T5b, T5c, T9, T11, T12, T17, T21, T22, T23, T24, T36, T91, T92, T122, T911
Application:Seamless Ferritic and Austenitic Alloy-Steel Boiler, Super-heater, mid Heat-Exchanger Tubes
Dimension Range:1/8.5 smelt, 3.2-127 mm

ASTM A252
Steel Grade: Grade 1, Grade 2, Grade 3
Application:Seamless Steel Pipe Piles
Dimension Range:6.24 inch

ASTM A333
Steel Grade: Grade 1, Grade 3, Grade 4, Grade 6, Grade 7, Grade 8,
Grade 9, Grade 10, Grade 11
Application: Seamless Steel Pipe for Low-Temperature Service
Dimension Range: 0.405-26 inch, 10.3-660 mm

ASTM A334
Steel Grade:Grade 1, Grade 3, Grade 6, Grade 7, Grade 8, Grade 9, Grade 11
Application: Seamless Carbon and Alloy-Steel Tubes for Low-Temperature Service
Dimension Range: 0.405-26 inch, 10.3-660 mm

ASTM A335
Steel Grade: Pl, P2, P5, P5b, P5c, P9, P11, PI2, P15, P21, P22, P23, P36, P91, P92, P122, P911
Application: Seamless Ferritic Alloy Steel Pipe for High-Temperature Service
Dimension Range: 0.405-26 inch, 10.3-660 mm

ASTM A423
Steel Grade: Grade 1, Grade 2
Application: Seamless Law-Alloy Steel Tubes
Dimension Range: 1/2-5 null, 12.7-127 mm

ASTM A500
Steel Grade: Grade A, Grade B, Grade C, Grade D
Application: Cold-Formed Seamless Carbon Steel Structural Tubing in
Rounds and Shapes
Dimension Range: ≤64 inch, ≤1603mm

ASTM A501
Steel Grade: Grade A, Grade B
Application: Hot-Formed Seamless Carbon Steel Structural Tubing
Dimension Range: NPS1/2-NPS24

ASTM A519
Steel Grade:1010, 1020, 1026
Application: Seamless Carbon and Alloy Steel Mechanical Tubing
Dimension Range: ≤ 12.75 inch, ≤323.8 mm

ASTM A523
Steel Grade: Grade A, Grade B
Application: Plan End Seamless Steel Pipe for High-Pressure Pipe-Type Cable Circuits
Dimension Range: NPS4-NPS12
Categories: Projects, Industrial Supply, MRO
Keywords: ASTM A513 steel seamless pipes, Super heater tubes, Heat Exchanger Tubes, ASTM A106 seamless pipes, ASTM A179 seamless tubes, ASTM A199 Seamless Tubes
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ASTM A53 Pipe,ASME SA53 Pipe 
Posted on 29/10/2013
ASTM A53 Standard specification covers Seamless and Welded, Black and Hot-Dipped Galvanized nominal (average) wall pipe for coiling, bending, flanging and other special purposes and is suitable for welding.

The steel for both seamless and welded pipe shall be made by one or more of the following processes: open-hearth, electric furnace, or basic-oxygen. The weld seam of electric-resistance welded pipe in Grade B shall be heat treated after welding.

A53 pipe comes in three types and two grades

A53 Type F, which is longitudinally furnace butt welded or continuous welded (Grade A only)
A53 Type E, which is longitudinally electric resistance welded (Grades A and B)
A53 Type S, which is seamless pipe, produced by hot working, and possibly cold finishing, the steel (Grades A and B). ASTM A53, Type S is now currently an outdated specification and has been replaced by ASTM A106 specification for seamless carbon steel pipe.
This is a standard set by the standards organization ASTM International, a voluntary standards development organizations that sets technical standards for materials, products, systems, and services.

This specification covers Seamless and Welded, Black and Hot-Dipped Galvanized nominal (average) wall pipe for coiling, bending, flanging and other special purposes and is suitable for welding. Continuous-Welded pipe is not intended for flanging. Purpose for which pipe is intended should be stated on order. It shall be permissible to furnish pipe having other dimensions provided that such pipe complies with all other requirements of this specification. Supplementary requirements of an optional nature are provided and shall apply only when specified by the purchaser.

Note 1. The dimensionless designators NPS (nominal pipe size) [DN (diameter nominal)] have been substituted in this specification for such traditional terms as ‘nominal diameter,’ ‘size,’ and ‘nominal size.’

Note 2. The term nominal wall thickness has been assigned for the purpose of convenient designation, existing in name only, and is used to distinguish it from the actual wall thickness, which may vary over or under the nominal wall thickness.

Permissible Variations in Wall Thickness

The minimum wall thickness at any point shall not be more than 12.5% under the nominal wall thickness specified.

Permissible Variations in Weights per Foot

Weight of any length shall not vary more than 10% over and 3.5% under that specified.

NOTE-NPS 4 and smaller-weighed in lots. Larger sizes shall be weighed separately by length.
Categories: Projects, Manufacturing
Keywords: ASTM A53, carbon steel pipe, Seamless pipe, seamless steel pipe, Steel pipe
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