6mm hex bolt m6 alloy steel B7 bolt

Nilo Alloy 36, W.Nr 1.3912, Invar 36® is a nickel-iron, low controlled expansion alloy that contains 36% nickel and possesses a rate of thermal expansion approximately one-tenth that of carbon steel.
Invar 36 Specifications: UNS K93600, W.Nr 1.3912

Nilo / Alloy K W.Nr.: 1.3981
UNS: K94610 ASTM F15
Fixed-expansion glass-encapsulated iron-nickel-cobalt alloys, Kovar alloys, have a linear thermal expansion coefficient similar to that of hard glass within a certain temperature range
For mating sealing with hard glass

Common Trade Names: Nickel Alloy 36, Invar 36®, Nilo 6®, Pernifer 6®
Invar 36® is a nickel-iron, low expansion alloy that contains 36% nickel, Invar 36 has a low coefficient of expansion from cryogenic temperatures to about +500°F (260°C).
Invar 36 Tube OD:0.2-6mm, WT: 0.02-2mm

We offer ASME SA335 Grade P22 Welded Pipe, ASTM A335 P22 Pipe is manufactured according to ASTM standards. Alloy steel A335 P22 ERW tube, Astm A335 P22 temperature extreme cold formed, made from steel strip drawn through a series of rolls.

Our products are a symbol of constant innovation and superior quality.

The corrosion resistance of SA 335 P91 seamless pipe is much higher than that of carbon steel. Grade P91 is a reference for the chemical composition of alloy steels. A chromium-molybdenum steel, the chemical composition of ASTM A335 P91 alloy steel pipe consists of 9% chromium and 1% molybdenum and vanadium.
Type Seamless Pipe
Seamless Tube
Welded Pipe
Welded Tube
SAW LSAW ERW EFW
Beveled End, Plain End”
Size OD: 1/2″” ~48″”
Thickness: SCH5~SCHXXS
Length :As per your requirement.”
Manufacturing technique Hot rolling /Hot work ,Cold rolling
Producing Standard ASME B36.10 ASME B36.22

La especificacion ASTM A193 Grado B7 cubre los requisitos para materiales de empernado de acero aleado de alta resistencia para servicio de alta temperatura o alta presion y otras aplicaciones de proposito especial. Es una especificacion estandar que define la composicion quimica tipica, las propiedades mecanicas, los requisitos de dureza, el tratamiento termico preferencial, el marcado del producto, la certificacion y otros requisitos para las conexiones atornilladas utilizadas en el servicio de recipientes a presion, valvulas, bridas y accesorios. ASTM A193 define unidades SI (metricas) y pulgadas-libras.

There are other different types of ASME SA 182 AS Pipe Flanges such as the weld neck flanges and socket weld flanges each specified for a particular role.

Chrome alloy steel flanges are manufactured in accordance with ASTM A182 F11/F12 and are widely used in nuclear power plants, power plants, water systems, electric power, oil fields, pipeline engineering, natural gas, marine engineering, shipbuilding and other industries. These flanges are harder and stronger than regular steel, but not as corrosion resistant as stainless steel.

Alloying steels have added alloying elements such as manganese and nickel. These elements increase the strength, hardness and toughness of metals. Added elements make alloy steels ideal for demanding industrial applications.
Type Seamless Pipe
Seamless Tube
Welded Pipe
Welded Tube
SAW LSAW ERW EFW
Beveled End, Plain End”
Size OD: 1/2″” ~48″”
Thickness: SCH5~SCHXXS
Length :As per your requirement.”
Manufacturing technique Hot rolling /Hot work ,Cold rolling
Producing Standard ASME B36.10 ASME B36.24

S32205 is a duplex stainless steel with twice the strength of austenitic stainless steel. Duplex stainless steel composed of 21% chromium, 2.5% molybdenum and 4.5% nickel-nitrogen alloy. It has high strength, good impact toughness and good overall and local stress corrosion resistance. The yield strength of duplex stainless steels is twice that of austenitic stainless steels, a feature that allows designers to reduce weight when designing products, making this alloy more affordable than 316, 317L. This alloy is particularly suitable for use in the -50¡ãF/+600¡ãF temperature range. For applications outside this temperature range, this alloy can also be considered, but there are some limitations, especially when applied to welded structures. Duplex stainless steel has twice the compressive strength compared to austenitic stainless steel, and designers can reduce its weight compared to 316L and 317L. Alloy 2205 is particularly suitable for use in the -50¡ãF/+600¡ãF temperature range, and can also be used at lower temperatures under severe restrictions (especially for welded structures).

When the F11 flange is heat treated, the alloy steel F22 flange is formed. These flanges have a tensile strength of 655 MPa and a yield strength of 517 MPa.

In order to improve the thermal efficiency of the reheat steam pipeline of the power plant, the reheat temperature can be designed to be 621¡ãC, that is, the supercritical temperature. The United States first developed ASTM A335 P92 alloy steel in the late 1980s to meet the heat resistance requirements of this high temperature power plant. Alloy Steel P92 is an improved version of ASTM A335 P91 alloy with deliberate additions of tungsten, vanadium, niobium, reduced molybdenum content to fine-tune the ferrite/austenite ratio, and carefully controlled boron and nitrogen content.
Type Seamless Pipe
Seamless Tube
Welded Pipe
Welded Tube
SAW LSAW ERW EFW
Beveled End, Plain End”
Size OD: 1/2″” ~48″”
Thickness: SCH5~SCHXXS
Length :As per your requirement.”
Manufacturing technique Hot rolling /Hot work ,Cold rolling
Producing Standard ASME B36.10 ASME B36.19
Material Alloy Steel ASTM A333 Grade 3, Grade 6,Grade 8,Grade 9
ASTM A335 P5,P9,P11,P12,P22,P91,P143

ASTM A320 Class L7 fasteners are manufactured using high strength materials ideal for the manufacture of fastener product bolts, studs and bolts that can be used in a wide range of high temperatures in bolting applications.

ASME SA335 grade p11 tubing contains trace amounts of carbon, sulfur, phosphorus, silicon and manganese. For example, the addition of chromium is known to improve the tensile strength, yield strength, fatigue resistance, wear resistance, and hardness properties of the alloy. The addition of these properties is ideal for preventing oxidation in high temperature applications.
Type Seamless Pipe
Seamless Tube
Welded Pipe
Welded Tube
SAW LSAW ERW EFW
Beveled End, Plain End”
Size OD: 1/2″” ~48″”
Thickness: SCH5~SCHXXS
Length :As per your requirement.”
Manufacturing technique Hot rolling /Hot work ,Cold rolling
Producing Standard ASME B36.10 ASME B36.47

Alloy seamless steel pipes are mainly used for high pressure and high temperature pipes and equipment such as power plants, nuclear power plants, high pressure boilers, high temperature superheaters and reheaters. It is made of high-quality carbon steel, alloy structural steel and stainless heat-resistant steel, processed by hot rolling (extrusion, expansion) or cold rolling (drawing).

Alloy steel hollow bars offer excellent corrosion resistance and dimensional accuracy with tight tolerances.

Due to the chemical composition of Molybdenum (Mo) and Chromium (Cr), A335 is often referred to as Chromium Molybdenum Tube. Molybdenum increases the strength of the steel as well as the elastic limit, wear resistance, impact quality and hardenability. Molybdenum increases resistance to softening, inhibits grain growth, and makes chromium steel less susceptible to embrittlement. Molybdenum is the most effective single additive for improving high temperature creep strength. It also enhances the corrosion resistance of the steel and inhibits pitting corrosion. Chromium (or chrome) is the basic component of stainless steel. Any steel with 12% or more chromium is considered stainless steel. Chromium is almost irreplaceable in terms of resistance to oxidation at high temperatures. Chromium increases tensile, yield and hardness at room temperature.
Type Seamless Pipe
Seamless Tube
Welded Pipe
Welded Tube
SAW LSAW ERW EFW
Beveled End, Plain End”
Size OD: 1/2″” ~48″”
Thickness: SCH5~SCHXXS
Length :As per your requirement.”
Manufacturing technique Hot rolling /Hot work ,Cold rolling
Producing Standard ASME B36.10 ASME B36.19
Material Alloy Steel ASTM A333 Grade 3, Grade 6,Grade 8,Grade 9
ASTM A335 P5,P9,P11,P12,P22,P91,P99

ASTM A335 gr P91 seamless pipe has the advantage of being dimensionally accurate, which in turn is suitable for applications that require high precision. The petrochemical industry, oil and gas industry, power plants and refineries often involve high temperatures and pressures.
Type Seamless Pipe
Seamless Tube
Welded Pipe
Welded Tube
SAW LSAW ERW EFW
Beveled End, Plain End”
Size OD: 1/2″” ~48″”
Thickness: SCH5~SCHXXS
Length :As per your requirement.”
Manufacturing technique Hot rolling /Hot work ,Cold rolling
Producing Standard ASME B36.10 ASME B36.25

Alloy steel is a steel alloyed by adding a variety of elements with a total amount between 1.0% and 50% in order to improve its mechanical properties. Alloy steels are divided into two categories: low alloy steels and high alloy steels. The distinction between the two is debatable. Smith and Hashemi defined the difference as 4.0%, while Degarmo et al. defined the difference as 8.0%. Most commonly, the phrase “alloy steel” refers to low alloy steel.

ASTM A335 Grade P11 is also commonly known as ASME SA335 Grade P11 Pipes, it is a seamless ferritic alloy-steel pipe that mainly has high-temperature applications. The UNS designation for this grade P11 is K11597.

The key to the P5 composition of chromium-molybdenum alloys is the addition of chromium and molybdenum. Chromium or chromium increases high temperature strength, increases oxidation resistance and increases tensile, yield and hardness at room temperature. Molybdenum improves strength, elastic limit, wear resistance, impact quality and hardenability. It increases resistance to softening, inhibits grain growth, and makes chrome steel less susceptible to embrittlement. Molybdenum is also the most effective additive for increasing high temperature creep strength or creep resistance. It also enhances the corrosion resistance of the steel and inhibits pitting corrosion.
Type Seamless Pipe
Seamless Tube
Welded Pipe
Welded Tube
SAW LSAW ERW EFW
Beveled End, Plain End”
Size OD: 1/2″” ~48″”
Thickness: SCH5~SCHXXS
Length :As per your requirement.”
Manufacturing technique Hot rolling /Hot work ,Cold rolling
Producing Standard ASME B36.10 ASME B36.19
Material Alloy Steel ASTM A333 Grade 3, Grade 6,Grade 8,Grade 9
ASTM A335 P5,P9,P11,P12,P22,P91,P107

ASTM A335 P11 seamless pipes are used in the production of transmission components in the automotive industry. Tubing is also used in the oil and gas industry because it is stronger, harder and has good properties at high temperatures.
Type Seamless Pipe
Seamless Tube
Welded Pipe
Welded Tube
SAW LSAW ERW EFW
Beveled End, Plain End”
Size OD: 1/2″” ~48″”
Thickness: SCH5~SCHXXS
Length :As per your requirement.”
Manufacturing technique Hot rolling /Hot work ,Cold rolling
Producing Standard ASME B36.10 ASME B36.19
Material Alloy Steel ASTM A333 Grade 3, Grade 6,Grade 8,Grade 9
ASTM A335 P5,P9,P11,P12,P22,P91,P130

Alloy Steel Flanges are made in different steel alloys. The flanges vary in dimensions and types. There are ? inches through 48 inches of nominal diameter sizes of flanges.

ASME SA 335 P11 pipe is a pipe made of chrome molybdenum alloy. It is used for high temperature service. It is corrosion resistant, strong and malleable.
Type Seamless Pipe
Seamless Tube
Welded Pipe
Welded Tube
SAW LSAW ERW EFW
Beveled End, Plain End”
Size OD: 1/2″” ~48″”
Thickness: SCH5~SCHXXS
Length :As per your requirement.”
Manufacturing technique Hot rolling /Hot work ,Cold rolling
Producing Standard ASME B36.10 ASME B36.53

El grado B7 es un acero de baja aleacion de cromo molibdeno tratado termicamente con un requisito minimo de resistencia a la traccion de 125 ksi (860 Mpa), un limite elastico de 105 ksi (720 Mpa) y una dureza maxima de 35HRC. Boltport produce pernos con cabeza y sin cabeza B7 a partir de barras de acero aleado AISI 4140 o piezas forjadas.

HastelloyC-276 (Hastelloy) is a tungsten-nickel-chromium-molybdenum alloy with extremely low silicon-carbon content and is considered to be an all-around corrosion-resistant aluminum alloy. The key moisture-resistant chlorine, various air-oxidizing fluorides, isopropyl titanate solutions, hydrochloric acid and air-oxidizing salts, have good corrosion resistance in ultra-low temperature and standing temperature sulfuric acid. Therefore, in the past 30 years, it has been widely used in extremely corrosive natural environments such as chemical plants, petrochemicals, flue gas desulfurization, pulp and paper industry, and environmental protection.

Corrosion resistance

The aluminum alloy has the following characteristics: 1. It has good corrosion resistance to most corrosive substances under the two conditions of air oxidation and repair. ¢ÚIt has good resistance to pitting corrosion, void corrosion and intergranular corrosion. The higher content of Mo and Cr makes the aluminum alloy resistant to corrosion by chloride ion content, and the W element further improves the corrosion resistance. At the same time, Hastelloy C-276 aluminum alloy is one of the only types of raw materials that are resistant to wet chlorine, hypochlorite and chlorine dioxide saturated solutions. Ester solution has obvious corrosion resistance. It is one of the very few raw materials that can be used as a hot sulfuric acid saturated solution.

These Alloy Steel F12 Lap Joint Flanges are made up of in dissimilar grades of standard ranges and meet its terms through national and international standards. Alloy Steel ASTM A182 F12 flanges are exceptionally resistant to corrosion in nature. In the interim, fabricators can cut pipe to length without inconvenience for these ASTM A182 F12 Alloy Steel flanges.

These are available in raised face or flat face configurations. These are used in piping industry, mechanical, chemical and many other sectors.

P11 Pipe is a chromium molybdenum alloy made pipe. It is used in the high temperature services. It is corrosion resistant, strong and ductile. Steel India Company is a manufacturer of different grades of the chromium molybdenum alloy made pipes.

Each tube of the A335 shall be hydrostatically tested. In addition, each tube shall be inspected using non-destructive testing methods in accordance with prescribed practices.
Type Seamless Pipe
Seamless Tube
Welded Pipe
Welded Tube
SAW LSAW ERW EFW
Beveled End, Plain End”
Size OD: 1/2″” ~48″”
Thickness: SCH5~SCHXXS
Length :As per your requirement.”
Manufacturing technique Hot rolling /Hot work ,Cold rolling
Producing Standard ASME B36.10 ASME B36.21

ASTM A193 Grade B7 specification covers requirements for high tensile alloy steel bolting material for use in high temperature or high-pressure service and other special purpose applications.

Nuts with a nominal size over 1 inch shall be a UNC Series Class 2B fit or an 8 UN Series Class 2B fit. High strength ASTM A194 grade 2H nuts are common in the market and are often replaced by ASTM A563 grade DH nuts due to the limited availability of DH nuts in certain diameters and finishes.