Size OD 21.3-711mm Type Seamless Boiler Tubes - Seamless Steel Pipe,Tubing and Casing, API 23mm carbon seamless steel pipe or tube for high pressure boiler
Standard Boiler Pipes & Tubes Standard & Grades. A/SA 179 low carbon steel ; A/SA 192 Carbon Steel ; A /SA 210 Grades A1, C;. A /SA 556 Grades B2, C2;. BS3059. JIS G3454 Grades STPG 370, STPG 410. JIS G3456 Grades STPT 370, STPT 410, STPT 480. JIS G3461 Grades STB 340 , STB410, STB510. EN 10216-2 Grades P195GH, P235GH, P265GH, 16Mo3, Size (mm) O.D. 28168; W.T. 230; L max 12000 OD (MM)WALL THICKNESS (MM)WALL THICKNESS (MM)25-283234-3638 28 rows on anpipes Seamless Carbon Steel Tubes. Heat Exchanger / Condenser 23mm carbon seamless steel pipe or tube for high pressure boilerSeamless Carbon Steel Boiler Tubes for High -Pressure Service and Superheater Tubes ASME/ASTM SA/A192 SA/A192 19.05 to 219.00 Wall Panel, Economizer, Re-heater, Superheater and Steam Pipeline of Boilers. ASME/ASTM A210 GR.A1, C 19.05 to 219.00 DIN17175 ST35.8, ST45.8 19.05 to 340.00 Seamless Carbon and Alloy Steel Tubes for Product ASTM A192 Seamless Carbon Steel Tubes Specification ASTM A192 Size 12 in. to 7 in. [12.7 to 177.8 mm] Type Seamless Carbon Steel Boiler Pipes and Heat Exchanger Tubes 23mm carbon seamless steel pipe or tube for high pressure boilerSpark Steel is Dealer of TATA BS 3059 Tubes , ERW/CEW Boiler Tubes , Air Heater Tubes and Corten Steel Tubes manufactured by Tata Steel . With over 1000+ Tons and 100+ sizes, we offer from ready stocks Welded and Seamless Boiler Tubes , Air Pre Heater and Corten Steel Tubes along with different varieties of Welded and Seamless Pipes with IBR approval and Cenvat
5 mins ASTM A192,ASME SA192 Seamless Boiler And Superheater
ASTM A192,ASME SA192 High -Pressure Seamless Carbon Steel Boiler And Superheater Tubes sizes and thicknesses usually furnished to this specification are 1 2 in. to 7 in. [12.7 to 177.8 mm ] outside diameter and 0.085 to 1.000 in. [2.2 to 25.4 mm ], inclusive, in 40 secs GB 5310 15CrMoG High Pressure Seamless Boiler Tubes Seamless steel tubes and pipes for high pressure boiler GB 5310 standard is applicable to steam boilers and pipeline seamless pipes for the manufacture of high pressure and above. 15CrMoG is GB 5310-95 steel grade (equivalent to 13CrMo44 of Federal Germany; corresponding to 1Cr-1 / 2Mo and 1 1 / 4cr-1 / 2mo-si steel widely used in various 23mm carbon seamless steel pipe or tube for high pressure boiler 2 mins Seamless steel pipes for high temperature and pressure serviceThese pipe are used heat exchangers, condensers, High Temperature Material should furnish to Specification A 530. GB5310-2008 is applicable to seamless tubes for making steam boiler whose pressure is high or higher and seamless tubes used as pipelines. ASTM A179 / A179M - 90a Standard Specification for Seamless Cold-Drawn Low-Carbon Steel Heat 23mm carbon seamless steel pipe or tube for high pressure boiler
2 mins Seamless Steel Pipe/Tube (SMLS Pipe/Tube), Seamless Pipe 23mm carbon seamless steel pipe or tube for high pressure boiler
Seamless steel pipe has better pressure capacity, strength is higher than ERW welded steel pipe . So it is widely applied in high pressure equipment, and thermal, boiler industries. Generally the welding seam of the welded steel pipe is the weak point, the quality affect overall performance. ASTM Standard for seamless steel pipe .Brand Xi 'An Shunjinxing Iron & Steel Co., Ltd Astm A192 High Pressure Od 12.7mm Carbon Steel Boiler High quality Astm A192 High Pressure Od 12.7mm Carbon Steel Boiler Tubes from China, China's leading high pressure a192 boiler tubes product, with strict quality control astm a192 carbon steel boiler tubes factories, producing high quality od 12.7mm carbon steel boiler tubes products.Brand Name NEW FORCE Model Number 56'' Certification MTC Place of Origin China Seamless Boiler Tube - steelPipe Type Boiler Seamless Tube , Seamless Boiler Tube , Boiler Pipe Application For High -pressure Fluids Transmission (boiler , heat exchanger, condenser) Specification OD 0.84'' ~ 28'' (21.3 ~ 711mm) 23mm carbon seamless steel pipe or tube for high pressure boiler Api 5l psl2 X42 seamless carbon steel pipe View More Send E
Brand Name NEW FORCE Model Number 48'' Certification MTC Place of Origin China Threaded Steel Pipe, Plain End Steel Pipe
Manufacturing Process of ASTM A192 Carbon Seamless Steel Boiler tube ASTM A192 carbon seamless steel pipe /tube are produced either by cold-drawn or hot rolled, as specified. Hot finished tubes need not be heat treated. Cold finished tubes shall be heat treated after the final cold-finishing at a temperature of 1200°F or higher.Brand HDT Price Range $800 - $9,000 China Seamless steel tubes for high-pressure boilers in GB 23mm carbon seamless steel pipe or tube for high pressure boilerHigh -quality carbon structural steel , alloy structural steel , and stainless heat-resistant steel seamless steel pipe for high -pressure and above steam boiler pipes in GB/T5310-2007 standard. Material mainly is Cr-Mo alloy and Mn Alloy, Such as 20G, 20MnG, 20MoG, 12CrMoG, etc. Payment 30% deposit, 70% L/C or B/L copy or 100% L/C at sight19mm round tubing 23mm seamless pipe tube 904l steelies 23mm carbon seamless steel pipe or tube for high pressure boiler23mm seamless steel pipe tube 23mm seamless steel pipe 23mm carbon seamless steel pipe or tube for high pressure boiler Vivipar boiler vessel plate Factory can supply 23mm seamless steel pipe tube 23mm seamless steel pipe , and we also offer high quality carbon steel , low-alloy steel , hot/cold rolled steel , shipbuilding steel plate, boiler steel plate, weathering Steel , API 5L API 5CT pipe , a36 steel ,Q235 steel , A283Grade
multi-lead rifled seamless steel tube for high-pressure boiler
multi-lead rifled seamless steel tube for high -pressure boiler Applications The rifled tubes are served in super/ultra super critical water wall panels over 300,000KW of boiler , chemical, electricity industries. Thchnical speifications ASME SA192, SA209, SA210, SA213, EN 10216, DN 17175, BS 3059, JIS 3461,JIS 3462. Type Type A, Type B, and Which is the best seamless pipe manufacturer in India?Which is the best seamless pipe manufacturer in India?CS Erw Pipe, CS Seamless Tube exporter in India, Carbon Steel Seamless pipe Manufacturers. Buy Carbon Steel Black Pipe, Carbon Steel Welded Pipe and Sch 40 Carbon Steel Pipe at best price in Mumbai, India. Tubos India is one of the large high quality Carbon Steel Pipe Suppliers.Carbon Steel Pipe Suppliers in India, CS Erw Pipe / Seamless Tube Which is the best seamless carbon steel boiler tube?Which is the best seamless carbon steel boiler tube?ASTM A192/ASME SA192 Seamless Carbon Steel Boiler Tubes for High-Pressure ServiceStandard ASTM A192/ASME SA192 JST can supply various grades of seamless boiler pipes, such as A192. Description ASTM A192/ASME SA192 seamless carbon steel boiler tube implements to carbon steel boiler and super heater substantial pressure and the minimum thickness.ASTM A192/ASME SA192 Seamless Carbon Steel Boiler Tubes
What kind of pipe is seamless carbon steel?What kind of pipe is seamless carbon steel?Seamless Carbon Steel Black Pipe is extensively used in applied involving industries like the shipbuilding and boiler industries, along with nuclear device, gas conveyance as well as petrochemical industries due to its characteristics of high corrosion resistance in combination with suitable mechanical properties.Carbon Steel Seamless Pipe and Sch 40 Welded/ ERW tube supplier - A What kind of boiler tubes are used for high pressure?What kind of boiler tubes are used for high pressure? Applications A wide range scope heat exchangers, condensers, heat transfer equipment, similar pipes and as superheater tubes for high pressure settings. For seamless carbon steel boiler and superheater tubes for high-pressure settings.ASTM A192 Seamless Carbon Steel Boiler Tubes for High Pressure - An Pipes What is a Seamless Steel Pipe? About Seamless Steel Pipes 23mm carbon seamless steel pipe or tube for high pressure boiler
Low Carbon Steel Seamless Carbon Steel Boiler Tubes for High Pressure ASTM A192 10.3-426 x 1.0-36 Low Carbon Steel Seamless Cold-drawn Intermediate Alloy Steel Heat-Exchanger and Condenser Tubes ASTM A199 10.3-426 x 1.0-36 T5, T22 Seamless Medium-carbon Steel Boiler and Superheater Tubes ASTM A210 10.3-426 x 1.0
Top Dealer,Supplier of ASTM A192 Seamless Carbon Steel 23mm carbon seamless steel pipe or tube for high pressure boiler
ASTM A192/ASME SA192 Seamless Carbon Steel Boiler Tubes for High -Pressure Service Manufacturers & Suppliers. If you are interested in purchasing high quality ASTM A192 seamless carbon steel boiler tubes for high -pressure service, please contact us Sturdy, Stainless high pressure carbon steel pipe for 23mm carbon seamless steel pipe or tube for high pressure boilerASTM A192 seamless carbon steel boiler tubes ASME SA192 heat exchanger pipe used for high pressure boiler plant price list US $599.99-$999.99 / Ton 1 Ton (Min. Order) Sturdy, Stainless carbon steel seamless boiler tube for 23mm carbon seamless steel pipe or tube for high pressure boilerStainless and galvanized carbon steel seamless boiler tube for industrial and commercial purposes at . These hot-dipped carbon steel seamless boiler tube are ideal for seamless construction uses.
Seamless Steel Pipe and Tube, Seamless Carbon Steel Pipe 23mm carbon seamless steel pipe or tube for high pressure boiler
Seamless steel pipe for liuid service. GB/TB8163-2008. Seamless steel tubes for low and medium boiler . GB/3087-1999. Seamless steel tubes for high pressure boiler . GB/5310-1995. Seamless carbon steel marine tubes . GB/T5312-1999. Seamless Steel Boiler Tubes, Stainless Steel Seamless 23mm carbon seamless steel pipe or tube for high pressure boilerBoiler steel pipes includes high pressure boiler pipe and medium pressure boiler pipe , it is often manufactured in seamless procedures, welded steel pipe is not applicable. Pipes has been widely used at heat exchanger pipe and tubing services, high pressure boiler , tube exchanger bundle, economizer, super heater, petrochemical industry pipes , etc. SA179SMLS Carbon Steel Sa 179 Seamless Tube For High 23mm carbon seamless steel pipe or tube for high pressure boilerA179/SA179SMLS Carbon Steel Tube For High , Middle , Low Pressure Boiler And Pressure Purpose A179/SA179SMLS Carbon Steel Tube For High , Middle , Low Pressure Boiler And Pressure Purpose Detail Standard ASTM A179/SA179SMLS Size:(mm ) Out Dimensions 12.7mm 114.3mm Wall Thickness 0.8mm - 15mm
Pressure Boiler Gas Line Pipe , Oil 23mm carbon seamless steel pipe or tube for high pressure boiler - Carbon Steel Tube
Carbon Steel Tube Annealed Carbon Steel Tube ASTM A192 A192M For High Pressure Boiler Tube Smooth Surface Carbon Steel Pipe , A179/ SA179 Round Seamless Steel Tube Cold Drawn Annealed Carbon Steel Tube With Round Thin Wall A213 / SA213 T11 , T5 Nickel Alloy Tube Nickel Alloy Tube Inconel 825 Tubing For Chemical Industry , OD 6 - 500mm Or P91 Material High Pressure Boiler Tube , Alloy Steel Pipe 23mm carbon seamless steel pipe or tube for high pressure boilerBoiler Seamless Alloy Steel Pipe ASTM A335 P91 for High Temperature Service. P12 NDE Seamless Alloy Steel Pipe Plain / Bevel End Nominal Wall Thickness. Medium Pressure Boiler Seamless Alloy Steel Tube ASTM A335 P22 20'' SCH XXS. Seamless Carbon Steel Pipe . Ship Building Seamless Carbon Steel Pipe , ASTM A106 Grade B Pipe Hot Rolled / Cold Drawn P008en Seamless Steel Tubes and Pipes for BoilersEvery type of steel tube and pipe can be manufactured. 2 NIPPON STEEL Boiler Steel Tubes and pipes Activity . 4 Three Mainstays of Reliability . 6 1 Integrated production system . 7 2 Quality assurance system . 12 3 Research and development system . 14 Developed Seamless Tubes and Pipes Products for Boilers . 16 S-TEN1 . 18 CR1A . 19 HCM2S 23mm carbon seamless steel pipe or tube for high pressure boiler
MST - Seamless Tube & Pipe Speed, Service and Precision
Speed, Service and Precision for Over 90 Years. Our cold-drawn seamless tube and pipe manufacturing facility has operated continuously since 1927. Since those humble beginnings, MST has become a global manufacturing force, providing boiler tube , mechanical tube , and carbon and alloy pressure pipe for many industries. High-pressure Boiler Seamless Steel PipeSpecifications and appearance quality GB5310-95 "Seamless Steel Tubes for High Pressure Boilers" The outer diameter of hot-rolled tubes is 22 to 530mm, and the wall thickness ranges from 20 to 70mm. Cold-drawn (cold-rolled) pipe has an outer diameter of 10 to 108 mm and a wall thickness of 2.0 to 13.0 mm . The special-shaped seamless steel pipe 23mm carbon seamless steel pipe or tube for high pressure boiler China High Pressure Boiler Pipe Suppliers, Manufacturers 23mm carbon seamless steel pipe or tube for high pressure boilerA high -pressure boiler tube with high strength, high oxidation and corrosion resistance and good structural stability is required. 6. The difference between medium and high pressure boiler tubes 7. Including medium-pressure boiler tubes and high -pressure boiler tubes , which are usually manufactured by seamless technology, and welded steel pipes 23mm carbon seamless steel pipe or tube for high pressure boiler
China GB 3087 standard seamless boiler alloy steel pipe 23mm carbon seamless steel pipe or tube for high pressure boiler
low pressure Medium pressure boiler pipe super heated steam pipe high quality seamless carbon steel pipe . Mainly for India market with IBR certification. Payment 30% deposit, 70% L/C or B/L copy or 100% L/C at sight; Min.Order Quantity 1 PC; Supply Ability Annual 20000 Tons Inventory of Steel Pipe China Boiler Steel Pipe Suppliers, Manufacturers, Factory 23mm carbon seamless steel pipe or tube for high pressure boilerBoiler Steel Pipeis a kind of boiler tube , belongs to the seamless steel tube category.The manufacturing method is the same as seamless pipe , but there are strict requirements for the steel types used in the manufacturing of steel pipes .High pressure boiler tubes are often in high temperature and high pressure conditions when they are used. China Boiler Pipe Suppliers, Manufacturers, Factory - Buy 23mm carbon seamless steel pipe or tube for high pressure boilerHigh Pressure Boiler Pipe . Product:Boiler Seamless pipe , Seamless Boiler pipe ,High Pressure Boiler Pipe Size OD:13.7 - 609.6 mm WT 1.5 - 50 mm LENGTH:3-12m Standards:GB3087-1999,GB/T14975, GB/T14976, GB13296-91,
China Alloy Steel Pipe,Seamless Boiler Tubes,Superheater 23mm carbon seamless steel pipe or tube for high pressure boiler
We are manufacturer of Alloy Steel Pipe in China, if you want to buy Seamless Boiler Tubes ,Superheater Steel Tube ,Seamless Circular Tube please contact us. China 3087 Seamless Steel Tubes Suppliers, Manufacturers 23mm carbon seamless steel pipe or tube for high pressure boilerThe commonly used material is 20G, 3087 Seamless Steel Tubes20G and other materials.Boiler tube GB3087 is the low and medium pressure boiler tube commonly known as 20G, boiler tube3087 Seamless Steel Tubesis the high pressure boiler tube commonly known as 20G. Carbon Steel Seamless Pipes, Boiler pipe, Carbon Steel 23mm carbon seamless steel pipe or tube for high pressure boilerSeamless Carbon Steel for High Temperature Service. ASTM A106. 10.3~1200 x 1.0~150. GR.B, GR.C. Seamless Cold-drawn Low-Carbon Steel Heat-Exchanger and Condenser Tubes . ASTM A179. 10.3~426 x 1.0~36. Low Carbon Steel . Seamless Carbon Steel Boiler Tubes for High Pressure .
Carbon Steel Seamless Pipes Tubes Pal Tube Industries
Seamless Carbon Steel Pipe for High Temperature Service ASTM A106 ASTM A106 10.3~1200 x 1.0~150 GR.B, GR.C Seamless Cold-Drawn Low-Carbon Steel Heat-Exchanger and Condenser Tubes ASTM A179 10.3~426 x 1.0~36 Low Carbon Steel Seamless Carbon Steel Boiler Tubes for High Pressure ASTM A192 10.3~426 x 1.0~36 Low Carbon Steel Carbon Steel Seamless Pipe and Sch 40 Welded/ ERW tube 23mm carbon seamless steel pipe or tube for high pressure boilerSchedule 40 carbon steel pipe is an alloy of elements carbon and iron. The content of carbon present in a Carbon Steel Seamless Pipe can be up to 2.1% of the total alloys weight. Any increase in the carbon percentage in the alloy used to manufacture a Fully Killed Carbon Steel Erw Pipe will raise the metals hardness and tensile strength 23mm carbon seamless steel pipe or tube for high pressure boiler Boiler High Pressure Carbon Steel Pipe ASTM A106 Grade C 23mm carbon seamless steel pipe or tube for high pressure boilerHigh quality Boiler High Pressure Carbon Steel Pipe ASTM A106 Grade C 56'' 1422mm X 120mm Size from China, China's leading seamless boiler tube product, with strict quality control seamless tube pipe factories, producing high quality seamless tube pipe products.
ASTM A192/ASME SA192 Seamless Carbon Steel Boiler Tubes
JST seamless boiler pipes are featured with high yield strength, high tensile strength and high elongation. Pressure to succeed resistance is guaranteed in the very smooth inside material. Advantages of JST Seamless carbon steel boiler tube . JST hot-rolled high pressure seamless boiler pipe does not need heat treatment. ASTM A192/A192M Seamless Carbon Steel Boiler Tubes for 23mm carbon seamless steel pipe or tube for high pressure boilerApplication Seamless Carbon Steel Boiler Tubes for High -Pressure Service. Mill test certificates will be issued according to EN10204/3.1B Packing Bare packing/bundle packing/crate packing/wooden protection at the both sides of tubes and suitably protected for sea-worthly delivery or as requested. ASTM A192,ASME SA 192 High-Pressure Seamless Boiler ASTM A192 High -Pressure Seamless Carbon Steel Boiler Tubes sizes and thicknesses usually furnished to this specification are 1 2 in. to 7 in. [12.7 to 177.8 mm ] outside diameter and 0.085 to 1.000 in. [2.2 to 25.4 mm ], inclusive, in minimum wall thickness. Length 6M or specified length as required. Surface Tubes will be varnished (Outside 23mm carbon seamless steel pipe or tube for high pressure boiler
ASTM A192 Standard for Seamless Carbon Steel Boiler Tubes
ASTM A192 Standard for Seamless Carbon Steel Boiler Tubes . ASTM A192 covers minimum-wall-thickness, seamless carbon steel boiler tubes and superheater tubes for high pressure service. The tubing sizes and thicknesses usually furnished to this specification are 1/2 in. to 7 in. [12.7 to 177.8 mm ] outside diameter and 0.085 to 1.00 in. [2.2 to 25.4 mm ], inclusive, in ASTM A192 Seamless Carbon Steel Tubes - CTS TubesASTM A192 / A192M is the standard applicable to seamless carbon steel boiler tubes for high -pressure service. ASTM A192 seamless steel tube sizes and thicknesses usually furnished to this specification are 12 in. to 7 in. [12.7 to 177.8 mm ] outside diameter and 0.085 to 1.000 in. [2.2 to 25.4 mm ], inclusive, in minimum wall thickness.Tubing having other dimensions may ASME SA213 TP321 High Pressure Stainless Steel seamless 23mm carbon seamless steel pipe or tube for high pressure boilerHigh quality ASME SA213 TP321 High Pressure Stainless Steel seamless Tube for boiler tube from China, China's leading Boiler Tube product, with strict quality control Boiler Tube factories, producing high quality Boiler Tube products.
ASME SA213 TP321 High Pressure Stainless Steel seamless 23mm carbon seamless steel pipe or tube for high pressure boiler
ASTM A213. Alloy 321 stainless steel is a titanium-stabilized version of alloy 304, used in particular applications within the sensitizing temperature range. Its resistance to sensitization, coupled with it higher strength, at high temperatures makes it suitable in application where alloy 304 will become sensitized, or where 304L has 23mm carbon seamless steel pipe or tube for high pressure boiler ASME SA192 Seamless carbon tube for high pressureASME SA192 Seamless carbon tube for high pressure ; HRSG boiler tube Product Size:26~65 mm (OD)*2.4~7mm(WT)*12~28m Features Description In combined cycle, wast heat of tubine will be recycled by HRSC and generates steam to generate electricity . ASME SA-335M Heat Resisting Seamless Boiler Tubes pipe34CrMo4 SS Seamless Boiler Tubes / Mechanical DIN 2391 High Pressure Hot Rolled Steel Tube . Alloy Steel Seamless Boiler Tubes DIN 1629 St52.4 St52 DIN 17175 15Mo3 13CrMo44 Plain End Oiled Surface. Q235B Grade St37 Seamless Cs Carbon Steel Boiler Tubes Large Diameter. Boiler Steel Tube . SA179SMLS Carbon Steel Sa 179 Seamless Tube For High
API5L JIS G 3454 STPG 370 Carbon steel pipes for high 23mm carbon seamless steel pipe or tube for high pressure boiler
If you needs for higher pressure pipelines shall think about JIS G 3455 requirement. JIS G3454 Steel pipe can be manufactured into seamless steel pipe or electric-resistance bonded steel tubes , the purchaser might designate the quality requirements on hot ended up or cold completed state. Size (mm ) Outer Dimensions 19.05mm- 114.3mm API 5L|API 5CT|Boiler Tube|Structural Pipe-Seamless Steel 23mm carbon seamless steel pipe or tube for high pressure boilerLongteng owns hot-rolled seamless steel pipe production line is the third most advanced small-diameter continuous rolling mill in China. It can produce OCTG Pipes , Fluid Pipes , Boiler Pipe and Tubes , High value-added products such as Hydraulic Pillar Pipes , Cylinder Sleeves, Structural Pipe , Seamless Pipes for Shipbuilding and Bearings. A105 / A106 Seamless Carbon Steel Pipe 13.7 - 1016mm OD 23mm carbon seamless steel pipe or tube for high pressure boilerCarbon Steel Tube Annealed Carbon Steel Tube ASTM A192 A192M For High Pressure Boiler Tube Smooth Surface Carbon Steel Pipe , A179/ SA179 Round Seamless Steel Tube Cold Drawn Annealed Carbon Steel Tube With Round Thin Wall A213 / SA213 T11 , T5 Nickel Alloy Tube Nickel Alloy Tube Inconel 825 Tubing For Chemical Industry , OD 6 - 500mm Or
23mm Carbon Seamless Steel Pipe Or Tube For Hi
jundesteelpipeHigh Pressure Alloy Seamless Steel Boiler Pipe Suppliers and Manufacturers - China Factory 23mm carbon seamless steel pipe or tube for high pressure boilerseamlessalloysteelpipeDurable High Pressure Boiler Tube , Carbon Steel Seamless Tube ASTM A106 Grade CchinacortenChina ASTM A192 High-Pressure Steel Boiler Tube Manufacturers, Suppliers, Distributor - Factory 23mm carbon seamless steel pipe or tube for high pressure boilerchinacortenChina ASTM A192 Carbon Seamless Steel Boiler Tubes Manufacturers, Suppliers, Distributor 23mm carbon seamless steel pipe or tube for high pressure boilerseamlessalloysteelpipeCarbon Steel Seamless Pipe ASTM A106 Grade B Fixed / Random Length images ASTM A192 Seamless Carbon Steel Boiler Tubes for High 28 rowsName ASTM A192 Seamless Carbon Steel Boiler Tubes . Size (mm ) O.D.
