Tech & service

Our team is highly trained and experienced in servicing and producing all types of steel supplies.

Ni-hard Pipe

Service Framework

Provide high-performance metal parts additive manufacturing
technology services and complete solutions to meet customers' higher needs for advanced manufacturing technology

More Processes

Stainless Steel & Nickel Alloys

Hot Alloy Pipes

How&What?

How&What?

Application

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All Industrial Application Fields For Sunny Steel Pipeline Products

Condition On Delivery

It refers to the state of final plastic deformation or final heat treatment of the delivered product. The hot-rolled or cold drawn (rolled) state or manufacturing state generally delivered without heat treatment; the heat-treated state after heat treatment delivery, or the normalizing, tempering, solid solution, annealing according to the type of heat treatment status.

Condition On Delivery Abbreviation Description
Cold-finished/hard (cold-finished as-drawn) BK No heat treatment after the last cold-forming process. The tubes therefore have only low deformability.
Cold-finished/soft (lightly cold-worked) BKW After the last heat treatment there is a light finishing pass (cold drawing) With proper subsequent processing, the tube can be cold-formed (e.g. bent, expanded) within certain limits.
Annealed GBK After the final cold-forming process the tubes are annealed in a controlled atmosphere or under vacuum.
Normalized NBK The tubes are annealed above the upper transformation point in a controlled atmosphere or under vacuum.

Weight

Standard Standard

Standards

ASTM Steel Pipes & Tubes

International Pipe Standards

  • GB3087 – Seamless Steel Tubes for Low and Medium Pressure Boilers.
  • GB5310 – High Temperature and High Pressure Boiler Tubes.
  • DIN 1629 – Seamless Non-Alloy Steel Tubes.
  • DIN 17175 – Seamless Tubes for High-Pressure and High-Temperature Service.
  • DIN 2391 – Seamless Precision Steel Tubes.
  • DIN 2440 – Medium-Weight Threaded Steel Tubes.
  • EN 10216 – Seamless Steel Tubes for Pressure Purposes.
  • EN 10216-1 – Technical Delivery Conditions – Part 1.
  • EN 10216-2 – Technical Delivery Conditions – Part 2.
  • EN 10305 – Seamless Cold Drawn Steel Tubes for Hydraulic and Pneumatic Systems.
  • JIS G3454 – Carbon Steel Pipe for Pressure Service.
  • JIS G3455 – Carbon Steel Pipe for High Pressure Service.
  • JIS G3456 – Carbon Steel Pipes for High-Temperature Service.
  • JIS G3461 – Carbon Steel Tubes for Heat Exchangers and Boilers.
  • JIS G3462 – Alloy Steel Tubes for Boilers and Heat Exchangers.
  • JIS G3101 SS41 – Hot-Rolled Carbon Steel Plate.
  • JIS G3101 SS400 – Structural Steel Grade.

Pipe Fittings & Flanges Standards

Material & Application Standards

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.

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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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