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.
Commonly fabricated materials and specifications are:
Alloy steel
Alloy steel is often subdivided into two groups: high alloy steels and low alloy steels. The difference between the two is defined somewhat arbitrarily. 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.
Available standard and specification as below:
ASTM / ASME
American Society for Testing and Materials(ASTM), American Society of Mechanical Engineers (ASME)
| Product name | Executive standard | Dimension (mm) | Steel code/ Steel grade |
| Seamless Ferritic and Austentic Alloy Steel Boiler, Superheater and Heat-Exchanger Tubes | ASTM A213 / A213M | 10.3~426 x 1.0~36 | T5, T9, T11, T12, T22, T91 |
| Wall seamless and welded carbon and alloy steel pipe intended for use at low temperatures | ASTM A333/ASME SA333 Standard Specification | 1/4″~42″ x SCH20~XXS | Gr1, Gr3, Gr6 |
| Seamless Ferritic Alloy Steel Pipe for High-Temperature Service | ASTM A335/ ASME SA335 | 1/4″~4″ x SCH20~SCH80 | P5, P9, P11, P12, P22, P91, P92 |
| Seamless Carbon and Alloy Steel for Mechanical Tubing | ASTM A519 | 16″~42″ x 10~100mm | 4130, 4130X, 4140 |
EN
| Product name | Executive standard | Dimension (mm) | Steel code/ Steel grade |
| Seamless Ferritic Alloy Steel Pipes for High Temperature Use | EN 10216-2 | 8″~42″ x 15~100mm | 13CrMo4-5, 1-CrMo9-10, X10CrMoVNb9-1, 15NiCuMoNb5-6-4 |
Stainless Steel
There are different types of stainless steels: when nickel, for instance is added the austenite structure of iron is stabilized.
Types of stainless steel
when nickel, for instance is added the austenite structure of iron is stabilized.
The main elements in stainless steel
Stainless steel or corrosion-resistant steel is a kind of metallic alloy that is found in a variety of forms.
History of stainless steel
‘Stainless’ is a term coined early in the development of these steels for cutlery applications.
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.
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%.
Higher carbon steels
which can successfully undergo heat-treatment have a carbon content in the range of 0.30–1.70% by weight.Ultra-high carbon steel
Ultra-high carbon steel contains between 1 and 2 percent carbon.Medium Carbon Steel
Medium Carbon Steel contains between 0.25 -0.7% carbon and used for machine components requiring high strength and good fatigue resistance.ASTM A350 LF2 Carbon Steel
ASTM A350-LF2 Temperature range (-50 to 800 deg. F) Where corrosion resistance is not important.
The Effect of Welding on High Carbon Steel
High-carbon steels are decidedly more difficult to weld than low- or medium-carbon steels. However, a variety of measures are available to ensure a strong weld.
Difference between forged steel and carbon steel?
Forged steel has been subject to high temperature and pressure forcing the crystal structure closer together and increasing tensile strength (used in high pressure gas compressors).
Difference between carbon steel and Killed carbon steel
There is a difference between regular carbon steel and killed carbon steel.
How to use steel tubing and use carbon steel pipe
If you are interested in using carbon steel pipe, there are all different types of reasons why you will want to use this.
Killed Carbon Steel
Killed Carbon Steel is a process of deoxidation that is performed during the steel making process.
Designation of Carbon Steel
The information and data presented herein are typical or average values and are not a guarantee of maximum or minimum values.
Carbon Steel Coding
The AISI and the SAE have designed a four digit code to assign to all carbon and alloy steels to show its standard wrought steel composition.
- Silicon-Manganese Steel, resulfurized and rephosphorized Carbon Steels
- Pressure and Temperature Ratings of ASTM A106 Grade B Carbon Steel Pipes
Which difference betweem astm a53 and astm a106
Pressure (psig) and temperature (deg F) ratings of ASTM A106 Grade B carbon steel pipes – temperatures ranging 100 oF – 750 oF
High Carbon Steel Properties
High Carbon Steel is one of the most important construction metals in the world.
What is Carbon steel?
Carbon steel is steel in which the main interstitial alloying constituent is carbon in the range of 0.12–2.0%.
The usage of Carbon steel pipe
Carbon steel pipe is widely used in the world of manufacturing as they have high end durability. It is one of the preferred pipes when it comes to stamina and cost. Steel tubes of different sizes and shapes can be created with use of modern technology.
DIN/EN Steel Pipe
DIN (Deutsches Institut für Normung ) standards for topics varying from agriculture to vehicle manufacturing in Germany.
JIS seamless pipe
JIS seamless pipe is steel pipe that has been created by JIS and meets certain performance requirements.
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.
| Product name | Executive standard | Dimension (mm) | Steel code/ Steel grade |
| Casting | API 5L | 10.3~1200 x1.0~120 | A, B, X42, X46, X52, X60, X70, X80, PSL1 / PSL2 |
ASTM / ASME – American Society for Testing and Materials / American Society of Mechanical Engineers
| Product name | Executive standard | Dimension (mm) | Steel code/ Steel grade |
| Black and Hot-dipped Zinc-coated Steel Pipes Seamless | ASTM A53 | 0.3~1200 x 1.0~150 | GR.A, GR.B, GR.C |
| Seamless Carbon Steel for High Temperature Service | ASTM A106 | 10.3~1200 x 1.0~150 | GR.B, GR.C |
| Seamless Cold-drawn Low-Carbon Steel Heat-Exchanger and Condenser Tubes | ASTM A179 | 10.3~426 x 1.0~36 | Low Carbon Steel |
| Seamless Carbon Steel Boiler Tubes for High Pressure | ASTM A192 | 10.3~426 x 1.0~36 | Low Carbon Steel |
| Seamless Cold-drawn Intermediate Alloy Steel Heat-exchanger and Condenser Tubes | ASTM A199 | 10.3~426 x 1.0~36 | T5, T22 |
| Seamless Medium-carbon Steel Boiler and Superheater Tubes | ASTM A210 | 10.3~426 x 1.0~36 | A1, C |
| Seamless Ferritic and Austenitic Alloy Steel Boiler, Superheater and Heat-exchanger Tubes | ASTM A213 | 10.3~426 x 1.0~36 | T5, T9, T11, T12, T22, T91 |
| Seamless Carbon and Alloy Steel for Mechanical Tubing | ASTM A333 | 1/4″~42″ x SCH20~XXS | Gr1, Gr3, Gr6 |
| Seamless and Welded Carbon Steel Pipes and Alloy Steel Pipes for Low Temperature Use | ASTM A334 | 1/4″~4″ x SCH20~SCH80 | Gr1, Gr6 |
| Seamless Cold-drawn Carbon Steel Feedwater Heater Tubes | ASTM A556 | 10.3~426 x 1.0~36 | A2, B2 |
GS
Product Name
|
Executive Standard
|
Dimension (mm)
|
Steel Code / Steel Grade
|
|---|---|---|---|
Seamless Steel Tubes for Elevated Temperature
|
DIN 17175
|
10~762 x 1.0~120
|
St35.8,St45.8, 10CrMo910, 15Mo3, 13CrMo44, STPL340, STB410, STB510, WB36
|
Seamless Steel Tubes
|
DIN 1629 / DIN 2391
|
13.5~762 x 1.8~120
|
St37.0, St44.0, St52.0, St52.3
|
Seamless Steel Tubes
|
DIN 2440
|
13.5~165.1 x 1.8~4.85
|
St33.2
|
Seamless Steel Pipes for Structural Purpose
|
DIN 2393
|
16~426 x 1.0~36
|
RSt34-2, RSt37-2, RSt44-2,St52
|
GS/ DIN– German Institute for Standardization, develops norms and standards as a service to industry, the state and society as a whole.
| Product name | Executive standard | Dimension (mm) | Steel code/ Steel grade |
| Seamless Steel Tubes for Elevated Temperature | DIN 17175 | 10~762 x 1.0~120 | St35.8,St45.8, 10CrMo910, 15Mo3, 13CrMo44, STPL340, STB410, STB510, WB36 |
| Seamless Steel Tubes | DIN 1629 | 13.5~762 x 1.8~120 | St37.0, St44.0, St52.0 |
| Seamless Precision Steel Tube | DIN 2391 | 4.0~60.0 x 0.5~8 | St35, St45, St52 |
| Seamless Steel Tubes | DIN 2440 | 13.5~165.1 x 1.8~4.85 | St33.2 |
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
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.
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
| Sand injection test | 30% Transfer test of sludge with SiO2 | ||
| Material | Volume diminution (cm3) | Material | Volume diminution (cm3) |
| Ceamic lining Steel pipe | 0.0022 | Ceamic lining Steel pipe | 3 |
| Ceramic pipe Al2O397% | 0.0025 | S45C | 25 |
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.
Note:
This inventory is part of the inventory, demand and other models in stock or order materials, please contact us.
