Material specifications,Sunny Steel Enterprise Ltd.

Our highly-skilled manpower is dedicated to producing the finest quality steel pipe, pipe fittings, meeting a wide variety of material specifications.

Alloy steel is often subdivided into two groups: high alloy steels and low alloy steels. The difference between the two is defined somewhat arbitrarily.

Pipes & tubes:

Dimensions from carbon steel pipes are defined in the ASME B36.10 standard, dimensions for stainless steel pipe are defined in the ASME B36.19 standard. The material qualities for these pipes are defined in the ASTM standards.
ASTM A106 = This specification covers carbon steel pipe for high-temperature service.
ASTM A335 = This specification covers seamless ferritic alloy-steel pipe for high-temperature service. Grade: P5, P9, P11, P12, P22, P91, P92
ASTM A333 = This specification covers wall seamless and welded carbon and alloy steel pipe intended for use at low temperatures. Grade:Gr1, Gr3, Gr6
ASTM A312 = Standard specification for seamless, straight-seam welded, and cold worked welded austenitic stainless steel pipe intended for high-temperature and general corrosive service.
ASTM A213= Seamless Ferritic and Austentic Alloy Steel Boiler, Superheater and Heat-Exchanger Tubes, Grade:T5, T9, T11, T12, T22, T91
ASTM A519= Seamless Carbon and Alloy Steel for Mechanical Tubing Grade:4130, 4130X, 4140

Flanges:

Dimensions from carbon steel and stainless steel flanges are defined in the ASME B16.5 standard. The material qualities for these flanges are defined in the ASTM standards.
ASTM A105 = This specification covers standards for forged carbon steel piping components, that is, flanges, fittings, Valves, and similar parts, for use in pressure systems at ambient and higher-temperature service conditions.
ASTM A182 = This specification covers forged or rolled alloy and stainless steel pipe flanges, forged fittings, and Valves and parts for high-temperature service.
ASTM A350 = This specification covers several grades of carbon and low alloy steel forged or ring-rolled flanges, forged fittings and Valves for low-temperature service.

ASTM Materials for fitting

Dimensions, from wrought carbon and alloy steel fittings are defined in several ASME standards. The material qualities for these fittings are defined in the ASTM standards.
ASTM A234 = This specification covers wrought carbon steel and alloy steel fittings of seamless and welded construction.
ASTM A420 = Standard specification for piping fittings of wrought carbon steel and alloy steel for low-temperature service.
ASTM A403 = Standard specification for wrought austenitic stainless steel piping fittings.

Why do manufacturers offer such a large variety of metals and materials?
Pipes and fittings are used in many applications and many industries that have widely different operating conditions.
To reach best performance (resistance to various types of corrosive fluids, operating temperature…) at acceptable costs, many metals have found unique niche applications in fittings.

Why choose a specific material, or grade, or schedule for a fitting?
Choice of material or grade or schedule is not made by distributors or by fitting manufacturers, but by engineers who design pipelines or systems based on performance requirements and acceptable costs.
Engineers take into account key operating conditions and environment: pressure, temperature, abrasion, corrosion, vibrations …
Fitting materials also have to be chemically compatible with pipe materials to which they are connected to avoid inter-metal corrosion, and for weldability.
Finally, cost of various materials varies greatly.

What does “high yield” (“HY”) mean for pipe fittings?
Yield strength refers to ability of materials to maintain a load or pressure without permanent deformation. (In this case, yield does not refer to manufacturing productivity of materials or equipment.)
Fitting design is based on yield strength.
Steel products do not all have similar potential. Yield strength can be changed by steel thickness, its chemical composition and heat treatments.

vales

A valve is a device that can be used to control the flow of liquids, gases, and slurries. Also known as regulators, valves can be found in almost any situation. They are also made in a number of different designs, depending on how they are being used, and they can be found in a range of sizes from smaller than a pinky to gigantic. Valves also vary from the extremely basic to the extraordinarily complex.
ASTM A216 = This specification covers carbon steel castings for Valves, flanges, fittings, or other pressure-containing parts for high-temperature service and of quality suitable for assembly with other castings or wrought-steel parts by fusion welding.
ASTM A217 = This specification covers steel castings, martensitic stainless steel and alloys steel castings for Valves, flanges, fittings, and other pressure-containing parts intended primarily for high-temperature and corrosive service.
ASTM A352 = This specification covers steel castings for Valves, flanges, fittings, and other pressure-containing parts intended primarily for low-temperature service.
ASTM A182 = This specification covers forged or rolled alloy and stainless steel pipe flanges, forged fittings, and Valves and parts for high-temperature service.

Bolds & Nuts

Bolts and nuts are mutually matched cylindrical threaded fasteners.
ASTM A193 = This specification covers alloy and stainless steel bolting material for pressure vessels, Valves, flanges, and fittings for high temperature or high pressure service, or other special purpose applications.
ASTM A320 = Standard Specification for Alloy-Steel and Stainless Steel Bolting Materials for Low-Temperature Service.
ASTM A194 = Standard specification for nuts in many different material types.
Read your tape measure, in inches. The distance you have found is the diameter of your flange.

ASTM Material grades

However, most agree that any steel that is alloyed with more than eight percent of its weight being other elements beside iron and carbon, is high alloy steel.

Material	Pipes	Fittings	Flanges	Valves	Bolts & Nuts
Carbon Steel	A106 Gr A	A234 Gr WPA	A105	A216 Gr WCB	A193 Gr B7
	A106 Gr B	A234 Gr WPB	A105	A216 Gr WCB	A194 Gr 2H
	A106 Gr C	A234 Gr WPC	A105	A216 Gr WCB
Carbon Steel Alloy high Temp	A335 Gr P1	A234 Gr WP1	A182 Gr F1	A217 Gr WC1	A193 Gr B7
	A335 Gr P11	A234 Gr WP11	A182 Gr F11	A217 Gr WC6	A194 Gr 2H
	A335 Gr P12	A234 Gr WP12	A182 Gr F12	A217 Gr WC6
	A335 Gr P22	A234 Gr WP22	A182 Gr F22	A217 Gr WC9
	A335 Gr P5	A234 Gr WP5	A182 Gr F5	A217 Gr C5
	A335 Gr P9	A234 Gr WP9	A182 Gr F9	A217 Gr C12
Carbon Steel Alloy low Temp	A333 Gr 6	A420 Gr WPL6	A350 Gr LF2	A352 Gr LCB	A320 Gr L7
Carbon Steel Alloy low Temp	A333 Gr 3	A420 Gr WPL3	A350 Gr LF3	A352 Gr LC3	A194 Gr 7
Austenitic Stainless steel	A312 Gr TP304	A403 Gr WP304	A182 Gr F304	A182 Gr F304	A193 Gr B8
	A312 Gr TP316	A403 Gr WP316	A182 Gr F316	A182 Gr F316	A194 Gr 8
	A312 Gr TP321	A403 Gr WP321	A182 Gr F321	A182 Gr F321
	A312 Gr TP347	A403 Gr WP347	A182 Gr F347	A182 Gr F347

Welded steel pipes are produced by rolling a sheet of steel into a tube and welding the seam. Seamless steel pipes are less expensive. The third method is casting. Molten steel is poured into a casting mold.
Our steel pipes and tubes are the preferred choice for processes under the following conditions:

- high temperatures
- aggressive media (e.g. acid and lye)
- and/or high pressure

which call for the use of high-quality materials.

Heat exchanger
Stainless steel tube for Heat exchanger A heat exchanger is a piece of equipment built for efficient heat transfer from one medium to another. The media may be separated by a solid wall to prevent mixing or they may be in direct contact.
In the Stainless steel tube for Heat exchanger the areas of application cover mainly the following:
piping systems apparatus and heat exchangers (ASTM A213...)

Fertilizer industry
In the Fertilizer industry the areas of application cover mainly the following:
urea synthesis ethylene plants melamine plants high-pressure tubes and piping systems apparatus and heat exchangers

Chemical and petrochemical industry
In the chemical and petrochemical industry the areas of application cover mainly the following:
urea synthesis ethylene plantsmelamine plantshigh-pressure tubes and piping systemsapparatus and heat exchangers

Power generation and Environmental technologies
In power plants and the energy sector our tubes and pipes are primarily used for heat exchangers.
The same application area also applies to environmental technologies and waste incineration plants:
reheaterssuperheaters
Develop ship-building for international clients

Ship building/ Ship making
Tengyue manufactures tubes for ship making in the domains of Exploration, Production and Processing

Casing & gas
Seamless steel tubes for oil casing and tubing for onshore and offshore Oil & Gas applications in the domains of Exploration, Production and Processing

Mechanical and plant engineering and construction
In mechanical and plant engineering and construction our tubes and pipes are mainly used in the following areas:
food processing, automotive technology, measurement and control technology, pumps, hydraulic cylinders
Stainless steel tubes and pipes as half finished product for fittings and flange productiontubes and pipes as half finished product for radially machined components (+ ASTM A511)

Automotive industry
In the automotive industry DMV products are mainly used in the following areas:
hydraulic braking systems, other critical application areas

Seamless Pipes and Tubes for Pressure Applications
The EN 10216 Euronorm replaces the old DIN 17175 and DIN 1629standards.
This standard is designed for pipes used in pressure applications, such as a pipeline.

Seamless steel pipes for project service
Sunny Steel offer the seamless steel pipes used for project service include coneying water, pertroleum, gas and other common fluides.
Seamless steel pipe are ubiquitous and can be found underground and within residential walls, laboratories, and commercial and industrial structures.

Seamless steel pipes for low and medium pressure service
Sunny Steel offer an extensive range of Seamless steel pipes for low and medium pressure service.
Appication for heat exchange tubes, streaming tubes. In the main steel grade as GB3087-2008, ASTM A179, ASTM A192.

Seamless steel pipes for high temperature and pressure service
Sunny Steel offer an extensive range of Seamless steel pipes for high temperature and pressure service.
High Pressure and Temperature Service Seamless Pipes are application for heating-pipelines, containers, coal-saving devices superheaters and reheaters of high temperature and high press boiler by the main standard GB5310-2008, GB9948-2006, GB6479-2000, ASTM/ASME A/SA213, ASTM/ASME A/SA335, EN10216-2, ASTM/ASME A/SA312.

Seamless steel tubes for low-temperature service
Low temperature service seamless pipes are application for low-temperature pressure container piping by the main standard GB/T18984-2003, ASTM/ASME A/SA333 with steel grade 16MnDG, 10MnDG, A333 Gr.1, A333 Gr.6, A333Gr.3.

Line pipes used in sour service environment
Sunny Steel offer an extensive range of Line pipes used in sour service environment.
The line pipes can be used for a wide range of petrol and gas transportation under sour service environment.

What Is Abrasion Resistant Steel

Some abrasion is intentional, such as sanding, grinding, and blasting. However, unintentional abrasion can lead to component failure so it is important to use the proper materials to ensure that surface wear does not lead to unanticipated breakdown of structures or parts. While steel in general has excellent resistance to abrasion, not all steels are equal.