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Boiler Steel Pipe

Boiler Steel Pipe

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Boiler steel Pipe is a seamless steel pipe which can operate under high temperature conditions. According to different operating temperature requirements, our boiler steel tube is further divided into general boiler pipe and high pressure boiler pipe. General boiler pipe is suitable for operating under temperatures no more than 450℃. Typical examples of this pipe are hot finished steel pipe and cold rolled carbon steel pipe.

The general boiler pipe is used to make water screen tube, boiling water tube, superheating steam tube, tobacco tube and generating tube, etc.

High pressure boiler pipe mainly includes high pressure or ultrahigh pressure tube for superheater, tube for reheater, gas-guide tube, main steam pipe, and so.

 

Technical Specification
Outer Diameter Size: 1-3/4″ to 18″
Wall Thickness: up until 2″

Standards & Grades
SA-106 Grade B/C
SA-335 P5, P9, P11, P22, P91
SA-333, Grade 1/6
SA-213 T5, T9, T11, T22, T91
API 5LB & X-Grades through X-80
SA-53 Grade B
A-519 1020 / 1026  (A519 Pipe for mechanical and pressure applications and for transporting steam, water, and gas.)
A-513 Type 5 (DOM)

Material Quality Standard
GB 3087: 10#, 20#
DIN 17175: St35.8, St45.8, 15Mo3, 13CrMo44, 10CrMo910, 14MoV63, 12Cr1MoV
GB 5310: 20G, 20MnG, 25MnG, 15MoG, 20MoG, 12CrMoG, 15CrMoG, 12Cr2MoG, 12Cr1MoG, 12CrMoWVTiB, 10Cr9Mo1VNb
ASME SA-192M/SA-192
ASME SA-106M, SA-106B, SA-106C
ASME SA-210M, SA-210A1, SA-210C
ASME SA-209M/SA-209Tla
ASME SA-213M, SA-213T2, SA-213T11, SA-213T12, SA-213T22, SA-213T23, SA-213T91
JIS G 3461: STB 340, STB 410

Standards and material for steel pipe is available at carbon, alloy, and stainless steel material.

Carbon steel: ASTM/ASME A/SA 106, ASTM A179, ASTM A192, ASTM/ASME A/SA 210, ASTM A333 Gr 1, 6,7 to Gr 9,
Alloy steel: ASTM/ASME A/SA 213 T1, T2, T5, T9, T11, T12, T22, T91, T92; ASTM A335 P1, P2, P5, P9, P11, P12, P22, P91, P92
Stainless Steel: ASTM A268, ASTM A213, TP304/L, TP316/L, 310S,309S,317,317L,321,321H, and duplex stainless steel material etc.

 

The basic method of rust removal for Boiler Pipe:
1. Cleaning
Using the solvent and emulsion to clean the surface of high pressure boiler pipe, so as to achieve the purpose of removing oil, grease, dust, lubricant and similar organic matter. But it cannot remove the dust, oxide skin, welding medicine and so on So it is only as a supplementary method in the anti-corrosion production.

2. Tools
Tool rust removal mainly use wire brush and other tools to grind the surface of high pressure boiler pipe. It can remove loose or warping of the oxide skin, rust, welding slag and so on. Manual tool can reach SA2 level, power tool can reach If the iron oxide scale attached to the surface, it cannot reach the anchorage depth required by the anti-corrosion construction.

3. Acid cleaning
High pressure boiler pipe generally adopt chemical and electrolytic methods to do pickling treatment.

4. Spray rust removal
Spray rust extraction cannot only remove rust, oxide and dirty completely, but also high pressure boiler pipe can achieve the required uniform roughness under the action of abrasive impact and friction force.Spay rust removal may only expand the physical adsorption on the surface of high pressure boiler pipe, but also enhance the mechanical adhesion between the anti corrosion layer and the pipe surface. So spray rust removal is ideal method of rust removing for pipeline corrosion.

Boiler Pipe manufacturing and testing

Boiler pipes are therefore suitable pipes for supporting the passage of gas at high temperatures, and for this reason they are generally made through cold drawing, which gives the pipe a mechanical compactness of considerable efficiency.

Deciding on our high pressure seamless carbon steel boiler tubes, customers need to give you following materials including quantity, unit (feet, meter or pipe number) and material name.

Taurus is capable to provide seamless boiler pipes with specific size, diameter and minimum wall thickness. The length can be fixed or random. A number of also provide optional test report, standard number and other special requirements for seamless carbon steel boiler tubes.

 

Boiler Pipe Application:
1 General boiler pipes are mainly used to manufacture water-cooled wall pipes, boiling water pipes, superheated steam pipes, superheated steam pipes for locomotive boilers, large and small smoke pipes and arch brick pipes.
2 high pressure boiler tubes are mainly used to manufacture superheater tubes, reheater tubes, air ducts, main steam tubes, etc. for high pressure and ultra high pressure boilers.

The difference between Boiler Pipes for type FIRE TUBE BOILERS and WATER TUBE BOILERS

FIRE TUBE BOILERS
Fire tube boiler date back to the industrial revolution, where they were used in steam engines, both for locomotives and industrial plants. They work by circulating hot gas through tubes, which in turn run through a water tank. The water is heated and eventually turns into steam, which is then used to generate energy.

Fire tube boiler often have extensive maintenance requirements and are best suited for applications with lower pressures. In recent years, fire tube designs have become more compact and efficient, incorporating features like reverse flame to get the most out of the heat source.

WATER TUBE BOILERS
Unlike fire tube boiler, where the hot gas is circulated through tubes to heat water in a tank, water tube boilers involve running water through tubes surrounded by a heated tank.


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