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Our highly-skilled manpower is dedicated to producing the finest quality steel pipe, pipe fittings, meeting a wide variety of material specifications. Their knowledge and experience of metal properties, welding procedures and quality control have set the pace and standard expected by our customers world-wide.

Alloy steel standards and 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.

Fittings

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.

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
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

Specifications & size range of Abrasion resistant pipe

Abrasion resistant pipe applied in coal-fired power plant ash and slag discharge tube, powder, powder tube, desulfurization pipeline,in addition also widely used in the following industries:

Recommended Abrasion resistant pipes and fittings

Abrasion resistant pipes and fittings are designed to outlast linings such as glass, rubber, basalt, hard-facings, and coatings that are commonly used to extend the life of piping systems. All pipe and fittings feature extremely wear resistant ceramics that are also exceptionally corrosion-resistant.
ASTM A213 T5b Seamless alloy tube

Bimetal Clad Pipe Bend

Bimetal Clad Pipe Bend is cast with mold vanishing vacuum suction casting cladding process.
Bi Metal Clad elbow

Bi Metal Clad elbow

Bi Metal Clad elbow is cast with mold vanishing vacuum suction casting cladding process.

STNADARD WE SUPPLY.

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