Stainless steel does not readily corrode, rust or stain with water as ordinary steel does. However, it is not fully stain-proof in low-oxygen, high-salinity, or poor air-circulation environments. There are different grades and surface finishes of stainless steel to suit the environment the alloy must endure. Stainless steel is used where both the properties of steel and corrosion resistance are required.
Duplex stainless steels are called “duplex” because they have a two-phase microstructure consisting of grains of ferritic and austenitic stainless steel. The picture shows the yellow austenitic phase as “islands” surrounded by the blue ferritic phase. When duplex stainless steel is melted it solidifies from the liquid phase to a completely ferritic structure. As the material cools to room temperature, about half of the ferritic grains transform to austenitic grains (“islands”). The result is a microstructure of roughly 50% austenite and 50% ferrite.
ASTM A312 / ASTM A213 / ASTM A249 / ASTM A269 / ASTM A358 / ASTM A789 / ASTM A790
ASME SA312 / ASME SA213 / ASME SA249 / ASME SA269 / ASME SA358 / ASME SA789 / ASME SA790
The American Petroleum Institute specification API 5L Covers Seamless and Welded steel line pipe. This is steel pipe for pipeline transportation systems in the petroleum and natural gas industries. API 5L is suitable for conveying gas, water, and oil.Size range is limited only by manufacturer’s capabilities. Specifications for API 5L adhere to the International Organization for Standardization ISO 3183, which standardizes pipeline transportation systems within the materials, equipment and offshore structures for petroleum, petrochemical, and natural gas industries. The technical committee authoring the standards recognized that there are two basic Product Specifications Levels (PSL) of technical requirements and therefore developed PSL 1 and PSL 2. PSL 1 is a standard quality for line pipe where PSL 2 contains additional chemical, Mechanical Properties, and testing requirements.
Grades covered by this specification are A25 ,A ,B, C (and the following "X" Grades), X42, X46, X52, X56, X60, X65, X70, X80. The two digit number following the "X" indicates the Minimum Yield Strength (in 000's psi) of pipe produced to this grade.
ASTM A106 / API 5L / ASTM A53 / ASTM A333 / ASTM A671 / ASTM A672 / ASTM A334 / ASTM A179 / ASTM A210 / ASTM A192 / ISO 3183
ASME SA106 / ASME SA53 / ASME SA333 / ASME SA671 / ASME SA672 / ASME SA334 / ASME SA179 / ASME SA210 / ASME SA192
ASTM A106 Grade B,ASTM A106 Grade C, ASTM A53 Grade B, ASTM A333 Grade 3, ASTM A333 Grade 6, ASTM A334 Grade 1, ASTM A334 Grade 6, ASTM A179, ASTM A192, ASTM A210 A1, ASTM A210 CAPI 5L Grade B PSL1, API 5L Grade B PSL2, API 5L X42 PSL1, API 5L X42 PSL2, API 5L X46 PSL1, API 5L X46 PSL2, API 5L X52 PSL1,API 5L X52 PSL2, API 5L X56 PSL1, API 5L X56 PSL2, API 5L X60 PSL1, API 5L X60 PSL2, API 5L X65 PSL1, API 5L X65 PSL2 , API 5L X70 PSL1, API 5L X70 PSL2, ASTM A671 EFW Pipe, ASTM A672 EFW Pipe,HIC RESISTANT Pipe, SOUR SERVICE Pipe,SSC TESTED Pipe, NACE MRO175 ASTM A671 CC60, A671 CC65, A671 CC70, A672 B60, A672 B65, A672 B70
Buy High Grade API 5L Grade B Seamless Pipe, HIGH QUALITY API 5L GR. B ERW Pipe, API 5L Grade B PSL1 SOUR SERVICE Line Pipe, 24" SCH 40 Carbon Steel API 5L Gr. B Seamless Pipes
API 5L Line Pipes EXPORTER in INDIA, API 5L Grade B PSL1 SOUR SERVICE Line Pipes SUPPLIER, EXPORTER in ASIA, SUPPLIERS OF API 5L Line Pipes, API 5L Line Pipes SUPPLIER, EXPORTER, API 5L GR. B, X42, X46, X52, X56, X60, X65, X7
24" SCH 40 Carbon Steel API 5L Gr. B Seamless Pipe | 16" SCH XXS API 5L CS Seamless Pipe | 12" SCH 40 API 5L Grade B Welded Pipe | 16" SCH XXS API 5L Carbon Steel Seamless Pipe | ASTM API 5L Line Pipe | Seamless and Welded API 5L Line Pipe
Alloy Steel Pipe is often called Chrome Moly Pipe because of the chemical makeup of Molybdenum (Mo) and Chromium (Cr). Molybdenum increases the strength of steel as well as the elastic limit, resistance to wear, impact qualities, and hardenability. Moly increases the resistance to softening, restrains grain growth and makes chromium steel less susceptible to embrittlement. Moly is the most effective single additive that increases high temperature creep strength. It also enhances the corrosion resistance of steel, and inhibits pitting. Chromium (or chrome) is the essential constituent of stainless steel. Any steel with 12% or more Chrome is considered stainless. Chrome is virtually irreplaceable in resisting oxidation at elevated temperatures. Chrome raises the tensile, yield, and hardness at room temperatures. The composition chrome moly Alloy Steel pipe make it ideal for use in power plants, refineries, petro chemical plants, and oil field services where fluids and gases are transported at extremely high temperatures and pressures.
Ferritic Alloy-Steel Pipe for high temperature service. Pipe ordered to this specification shall be suitable for bending, flanging (vanstoning), and similar forming operations, and for fusion welding. Sometimes referred to as “P Grade”, Chrome Moly Pipe is popular in P-Grades P5, P9, P11, P22, and P91. The most common use of grades P11, P22, and P91 is in the power industry and petro-chemical plants, Grades P5 and P9 are commonly used in refineries.
ASTM A335 / ASTM A213 / ASTM A691 / ASME SA335 / ASME SA213 / ASME SA691
ASTM A335 Grade P5, ASTM A335 Grade P9, ASTM A335 Grade P11, ASTM A335 Grade P22, ASTM A335 Grade P91, ASTM A213 Grade T5, ASTM A213 Grade T9, ASTM A213 Grade T11, ASTM A213 Grade T22, ASTM A213 Grade T91, ASTM A691 Grade 1-1/4CR, ASTM A691 Grade 2-1/4CR, ASTM A691 Grade 5CR, ASTM A691 Grade 9CR, ASTM A691 Grade 91, ASME SA691 Grade 1-1/4CR, ASME SA691 Grade 2-1/4CR, ASME SA691 Grade 5CR, ASME SA691 Grade 9CR, ASME SA691 Grade 91.
A superalloy, or high-performance alloy, is an alloy that exhibits several key characteristics: excellent mechanical strength, resistance to thermal creep deformation, good surface stability and resistance to corrosion or oxidation. The crystal structure is typically face-centered cubic austenitic. Examples of such alloys are Hastelloy, Inconel, Monel, Carpenter 20, Waspaloy, Rene alloys, Haynes alloys, Incoloy, MP98T, TMS alloys, and CMSX single crystal alloys.
Superalloy development has relied heavily on both chemical and process innovations. Superalloys develop high temperature strength through solid solution strengthening. An important strengthening mechanism is precipitation strengthening which forms secondary phase precipitates such as gamma prime and carbides. Oxidation or corrosion resistance is provided by elements such as aluminium and chromium.
ASME SB127, ASME SB162, ASME SB163, ASME SB168, ASME SB407, ASME SB409, ASME SB423, ASME SB443, ASME SB463
ASTM B127, ASTM B162, ASTM B163, ASTM B168, ASTM B407, ASTM B409, ASTM B423, ASTM B443, ASTM B463
Inconel 600, Inconel 601, Inconel 625, Incoloy 800, Incoloy 800H, Incoloy 800HT, Incoloy 825, Monel 400, Hatelloy C-276, Hastelloy C-22, Alloy 20, Nickel 200, Nickel 201, Alloy 600, Alloy 601, Alloy 625, Alloy 800, Alloy 800H, Alloy 800HT, Alloy 400, Alloy C-276, Alloy C-22, Alloy 200, Alloy 201. UNS N04400, UNS N06600, UNS N06601, UNS N06625, UNS N08800, UNS N08810, UNS N08811, UNS N08825,UNS N010276, UNS N06022, UNS N08020, Inconel 600 / 601 / 625 Pipes and Tube, Incoloy 800 / 800H / 800HT / 825 Pipes and Tube, Monel 400 Pipes and Tube, Hastelloy C276 / C22 Pipes and Tube