Production processes

Corrosion & High Temperature Resistant Process Piping For Chemical, Refinery & Pharmaceutical Plants

One-stop process piping supply including high-temperature alloy tubes, anti-corrosion stainless pipes and matching butt-weld fittings. Custom hot bending, stress relief heat treatment and internal polishing for all industrial process media transmission projects.

All Industrial Application Fields For Sunny Steel Pipeline Products

Sunny Steel manufactures full series seamless carbon/alloy pipes, butt weld fittings, boiler anti-abrasion shields, hydraulic honed tubes, wear-resistant composite pipes, precision automobile mechanical tubes, cryogenic steel tubes, fully compliant with ASTM, ASME, GB, DIN, EN standards. Our products widely serve global heavy industrial projects, solving high temperature, high pressure, fly ash erosion, acid corrosion, low temperature brittle fracture, heavy load abrasion and other harsh working condition problems, providing full pipeline material matching service for EPC contractors, equipment manufacturers and factory owners.

1. Thermal Power / Biomass / Waste Incineration Power Plant

Core Working Conditions

  • Long-term ultra-high temperature (450℃~1050℃) & high pressure steam medium
  • Mass fly ash particle scouring, serious tube wall abrasion risk
  • Sulfur-containing flue gas acid corrosion environment
  • Superheater / reheater / economizer frequent temperature alternating load

Matching Sunny Steel Products

  • GB5310 / ASTM A213 T91 T22 high pressure boiler seamless tube
  • ASTM A199 alloy heat exchanger condenser tube
  • 310S / 253MA boiler protection anti-wear shield (comb / bend type)
  • ASTM A234 WP11 WP22 alloy elbow, tee, reducer fittings
  • High temperature alloy forged flange, header connecting pipe

Typical Equipment Matching Positions

Boiler superheater, reheater, economizer, water wall tube bundle, header pipeline, flue gas ash conveying pipeline, waste incineration high temperature heat exchange system.

2. Petrochemical / Refinery / Fertilizer Plant

Core Working Conditions

  • High pressure corrosive oil, ammonia, acid, alkali fluid medium
  • High & low temperature alternating reaction workshop pipeline
  • H2S sulfur medium stress corrosion risk
  • High-pressure synthesis reactor supporting pipeline

Matching Sunny Steel Products

  • ASTM A106 Gr.B / GB/T8163 fluid seamless pipe
  • ASTM A334 Gr6 low temperature cryogenic pipeline
  • 316 stainless steel seamless tube & anti-corrosion pipe fittings
  • GB/T6479 high pressure fertilizer special steel pipe
  • WPB / WP22 alloy butt welding pipe fittings

Typical Equipment Matching Positions

Crude oil conveying pipeline, chemical reactor heat exchanger, ammonia synthesis high-pressure pipeline, acid-base medium circulation system, cryogenic separation equipment piping.

3. Automobile & Construction Machinery Manufacturing

Core Working Conditions

  • High precision dimensional requirement for chassis structural parts
  • Hydraulic system high pressure sealed cylinder barrel inner surface
  • Frequent cold bending, welding processing demand
  • High fatigue load suspension & transmission components

Matching Sunny Steel Products

  • EN E355 / ASTM A519 mechanical automobile precision tube
  • ST52 E355 mirror inner honed tube for hydraulic cylinder
  • 20# / 45# cold drawn precision seamless pipe
  • Custom bent chassis structural tubing

Typical Equipment Matching Positions

Car chassis support tube, suspension control arm, hydraulic cylinder barrel, excavator loader hydraulic pipeline, engine auxiliary cooling tube, forklift lifting frame.

4. Mining / Metallurgy / Cement Plant

Core Working Conditions

  • High-speed ore tailings, pulverized coal slurry severe abrasion
  • High temperature flue gas dust conveying pipeline
  • Long distance solid particle transport pipeline

Matching Sunny Steel Products

  • Bimetallic wear-resistant composite pipe & wear elbow fittings
  • Cast basalt lined anti-abrasion pipe
  • Large diameter hot rolled seamless main pipeline
  • Thick wall wear-resistant pipe caps & tees

Typical Equipment Matching Positions

Mine tailings conveying pipeline, pulverized coal delivery pipe, cement kiln ash flue, metallurgical slag slurry transport system.

5. Refrigeration & LNG Cryogenic Engineering

Core Working Conditions

  • -45℃ ~ -196℃ ultra-low temperature working medium
  • Strict low-temperature impact toughness requirement to avoid brittle crack
  • Liquid nitrogen / LNG sealed pressure pipeline

Matching Sunny Steel Products

  • ASTM A334 Gr.6 low temperature seamless steel pipe
  • Cryogenic grade butt weld elbow & reducer fittings
  • Low temperature normalized seamless tube blank

Typical Equipment Matching Positions

LNG storage tank conveying pipeline, industrial refrigeration unit, liquid nitrogen cryogenic equipment, cold storage circulation piping.

6. Municipal & Building Infrastructure

Core Working Conditions

  • Water supply / sewage medium low pressure pipeline
  • Building steel frame structural support tube
  • Central heating steam heat distribution pipeline

Matching Sunny Steel Products

  • GB/T8163 fluid seamless pipe
  • GB/T8162 structural seamless tube
  • Hot galvanized steel pipe & standard pipe fittings

Typical Equipment Matching Positions

City heating network, tap water supply pipeline, high-rise building steel structure frame, underground sewage pipeline.

Industry & Matching Core Product Comparison Table

Industry Sector Key Working Risk Main Recommended Products
Thermal Power Plant High Temp + Fly Ash Erosion Alloy Boiler Tube + 310S Anti-Wear Shield
Petrochemical Plant Sulfur Acid Corrosion 316 Stainless Tube / A334 Low Temp Pipe
Auto & Machinery High Precision Hydraulic Seal Honed Tube / A519 Precision Tube
Mining Cement Severe Solid Abrasion Bimetallic Wear Composite Pipe
Cryogenic LNG Low Temp Brittle Failure ASTM A334 Gr6 Pipe
Municipal Construction Medium Low Pressure Fluid GB/T8162 / GB/T8163 Carbon Pipe

Our Global Industrial Project Service Advantages

  • 1. Full product chain supply: pipe + fitting + anti-wear parts + hydraulic tube one-stop matching, reduce multi-supplier communication cost
  • 2. Professional technical team provide material grade conversion between GB / ASTM / EN for overseas EPC drawings
  • 3. Complete batch inspection & EN10204 3.1 / 3.2 MTC certificate for tender & third-party supervision
  • 4. Custom deep processing: bending, grinding, threading, galvanizing, U-forming per project drawing
  • 5. Global export logistics support EXW / FOB / CIF / DAP terms, sea-worthy anti-rust packaging
Frequently Asked Questions
Cover thermal power, waste incineration, petrochemical, fertilizer, automobile, construction machinery, mining cement, LNG cryogenic, municipal construction six major industrial sectors.
Use GB5310 / ASTM A213 high temperature alloy boiler tube, matched 310S / 253MA boiler anti-wear shield for tube protection.
ASTM A334 Gr6 low temperature seamless steel pipe with mandatory -45℃ impact test.
E355 ST52 precision honed tube with mirror inner surface H8/H9 tolerance.
Yes, we supply boiler tube, alloy elbow tee reducer, anti-wear shield full set one-stop supply with unified batch MTC documents.
Our technical team provides free cross-standard grade comparison table to support drawing substitution.
EN 10204 3.1 / 3.2 MTC including PMI, mechanical, NDT, hydrostatic full test records.
Support cutting, chamfering, U-bending, inner grinding, hot galvanizing, laser marking custom processing per drawings.
Hot Products

【H】 Ceramic lined pipe

Ceramic lined pipe is made through self-propagating high-temperature synthesis (SHS) technique.

【H】 Cast basalt lined steel pipe

Cast basalt lined steel pipe is composed by lined with cast basalt pipe, outside steel pipe and cement mortar filling between the two layers.

【H】 Ceramic Tile Lined Pipes

Ceramic tile lined pipes have very uniform coating of specially formulated ceramic material that is affixed to the inner of the pipe.

【H】 Rare earth alloy wear-resistant pipe

The material of the rare earth alloy wear-resistant pipe is ZG40CrMnMoNiSiRe, which is also the grade of rare earth alloy steel.

【H】 Tubes Erosion Shields

Tubes Erosion Shields are used to protect boiler tubing from the highly erosive effects of high temperatures and pressures thereby greatly extending tube life.

【H】 ASTM A213 T91 Alloy Tube

The ASTM A213 T91 seamless tubes are primarily used for boiler, superheater, and heat-exchanger.

The White Glove Service You Deserve

When you partner with Sunny Steel, you can stop worrying about meeting deadlines thanks to our responsive and timely service. You'll also say goodbye to unnecessary shopping around. Instead, you'll get white glove service from an expert who understands your needs and can get you the materials you need quickly.

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Materials delivered on-time and at a fair price

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No delays in production or manufacturing process

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Meet engineering specifications to ensure top quality

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World-class customer service ready to help