Material specifications

Stainless Steel

There are different types of stainless steels: when nickel, for instance is added the austenite structure of iron is stabilized.

Stainless Pipes are made from more than 20 steel grades of various corrosion resistance and are intended for application in conditions of a wide range of corrosion environments and temperatures in heat exchanger.
What is stainless steel?
This crystal structure makes such steels non-magnetic and less brittle at low temperatures. For higher hardness and strength, carbon is added. When subjected to adequate heat treatment these steels are used as razor blades, cutlery, tools etc.

Significant quantities of manganese have been used in many stainless steel compositions. Manganese preserves an austenitic structure in the steel as does nickel, but at a lower cost.Stainless steel does not readily corrode, rust or stain with water as ordinary steel does, but despite the name it is not fully stain-proof, most notably under low oxygen, high salinity, or poor circulation environments. It is also called corrosion-resistant steel or CRES when the alloy type and grade are not detailed, particularly in the aviation industry.

Carbon Steel

Carbon steel is steel where the main interstitial alloying constituent is carbon in the range of 0.12-2.0%.

API SPEC 5L -Specifies requirements for the manufacture of two product specification levels (PSL 1 and PSL 2) of seamless and welded steel pipes for use in pipeline transportation systems in the petroleum and natural gas industries.

ASTM / ASME  – American Society for Testing and Materials / American Society of Mechanical Engineers

GS

GS/ DIN– German Institute for Standardization, develops norms and standards as a service to industry, the state and society as a whole.

Black steel

Black steel is a term given to steel pipe with a black oxide scale on the surface. This black oxide scale is formed when the pipe is forged and is typically sealed with a protective oil to prevent corrosion. Because of this oxide scale and protective film, black steel pipe requires little maintenance and is used for a wide variety of applications, including in water, steam, air and gas services. Black steel pipes are typically cut and threaded in the field.

High-yield low temperature

MSS-SP-75, CSA 245, ASTM A-st420, ASTM A-860, ASTM A-234 & ASME SA-234 Tees & reducing tees, WPB, API 5L, API 5CT, ASTM A53, A106, A120, A161, A179, A192, A199, A200, A210, A261, A333, A335, A376, A671, A672, A691 JIS G3461, JIS G3462, STS 480, DIN 17175, DIN 1629, DIN 17121, BS 2059,WPC Duplex and super duplex
ASTM A-815 & ASME SA-815, UNS 31803, UNS 32750, UNS 32760, UNS 32755, UNS-S 32550

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:

• After Analyses and research, it was thought that the main facts which affect drilling pipe abrasion resistant ring failure were abrasive property of formations, selection of high-abrasive material, and wielding technique.
• Mining coal industry, coal, coal mines, washing filling, coal mine,
• Metal mine ore tailings transport, and wear-resistant elbow,
• Metallurgy furnace of steel, coal, iron pipe; such loss CAO, zinc Bei sand conveying pipeline steel, alloy , the secondary refining etc; the selection of wear-resisting elbow.

Ceramic (Corundum: a-Al2O3) lined abrasion resistant straight pipe and fittings are lined with highly abrasion resistant ceramic by SHS ——-Self-propagating High-temperature Synthetic process. The composite pipes have good corrosion-resistant.

• Use of Ceramic-Lined Steel Composite Pipe
• Self-propagating High-temperature Synthetic process
• Size of Ceramic-Lined Composite Elbows 22.5 degree
• Size of Ceramic-Lined Composite Elbows 45 degree
• Size of Ceramic-Lined Composite Elbows 90 degree
• Size of Ceramic-Lined Steel Composite Pipe (CLSP)

How better packaging the abrasion resistant pipe

There are probably hundreds of different methods for packing a abrasion resistant pipe and Elbows, and most of them have merit, but there are two principles that are vital for any method to work prevent rusting and Sea transportation security.
Recommended Abrasion resistant pipe as below:After Analyses and research, it was thought that the main facts which affect drilling pipe abrasion resistant ring failure were abrasive property of formations, selection of high-abrasive material, and wielding technique.

Main Properties of Ceramic lined pipe

Properties of the Ceramic-lined Steel Composite Pipes

Ceramic (Corundum: a-Al2O3) lined abrasion resistant straight pipe and fittings are lined with highly abrasion resistant ceramic by SHS ——-Self-propagating High-temperature Synthetic process.