Screw 8 Grade Bolt Nut Hex 12 Head Thread Astm A325m 8S Heavy A193 B7 Unf Hex nuts

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

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

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

ASTM A335 P9 seamless pipe is one of the chrome molybdenum alloy pipes. This material is used for high temperature and high pressure applications. This material has a much smaller rate of thermal expansion, so it doesn’t lose its shape or shape at high temperatures. ASME SA 335 grade P9 alloy steel pipes are mainly used in the power generation and petrochemical industries.
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 B36.39

These fittings are available in different types such as elbows,couplings,tees crosses,plugs,pipe nipples etc.

The carbon form can be iron carbide or Alloy Steel F9 Weld Neck Flanges can be carbide of an alloying component, for example, titanium. The A182 F9 Steel Slip On Flanges are good for use with seamless pipes because the flanges allow for the pipes to slip onto them for precise location for the connection.

Alloy Steel F11 Flanges specifications are also mentioned and the face type starts from flat face, raised face, ring type joint and many more.

Our ASTM A182 F5 alloy steel blind flanges are used in auxiliary industrial high pressure services such as heat exchangers, condensers, evaporators, boilers, etc.

Impact strength as well as high surface smoothness are the result of round bar forging of alloy steel DIN 1.7335. Once the materials are forged, they are allowed to cool to the temperature specified by the specification ASTM A 182.

It is almost the same as AISI 4130 chrome-molybdenum alloy steel, but with a slightly higher carbon content. Compared to AISI/ASTM 4130 alloy steel, AISI 4140 steel has a higher carbon content, which provides higher strength and heat treating capability, but also has limited weldability.

The grade mark consists of the grade symbol “2H” and the manufacturer’s identification mark.

Seamless pipes are used with slip on flanges to make the process smooth. The Alloy Steel Blind Flanges are used to close a pipe connection.

SA182 F5 Plate Flange can be used in those environments where there is a presence of mild corrosive compounds. It can also be used in non-corrosive applications as well as in erosive applications at the temperature between ranging between -30oC up to +650oC. ASTM A182 Grade F5 Flanges in conditions characterized by increased levels of carbon dioxide (CO2), hydrogen sulphide (H2S), and as well chlorides (Cl). The highlight of A182 F5 Steel Slip On Flanges are Precise plan, Accurate measurements, Resistant to corrosion, Less costs, pitting and crevice resistance.

F11 alloy steel pipe flange is the second most common connection method after welding. Use them when joints need to be disassembled. ASTM A182 Gr F11 flanges provide flexibility for maintenance. It connects pipes with various equipment and valves.

Our Alloy Steel Seamless Pipes (IBR) are made of alloy steel with excellent properties. These were developed for energy-related applications involving oil and gas drilling and are therefore subject to the stress of machine parts. In addition, alloy steel pipes are used in domestic, professional or industrial fields.
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,P118

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.

These are used in applications where the resistance required is not much and general corrosion resistance is required.

ASTM A193 Grade B7 bolts are considered for applications up to 450¡ãC due to heat treated chrome molybdenum steel. B7 stud bolts are bolts with male threads and a hex head designed to be actuated by a wrench. It can be fully threaded or partially threaded and is supplied with a hex cap.

ASTM A193 Grade B7M bolts and studs have the same chemical composition as Grade B7 (quenched and tempered medium carbon alloy steel) but have lower strength requirements requiring 100% hardness testing on all fasteners manufactured in the batch. Grade B7M bolts are resistant to chloride, sulfide and hydrogen stress corrosion cracking (SCC) and are often used in sour gas service.

sa335 P5 P5 materials used to make ASTM A335 pipes etc. must meet chemical composition, tensile properties and SA335 P5 hardness requirements. This type of alloy steel pipe is used in applications that require high temperature service. ASTM A335 P5 Pipe Supplier’s Composition, A335 P5 Allowable Stress contains lesser amounts of Nickel and Manganese as they increase the hardness of the pipe.
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 B36.36

Adding nickel adds toughness to the alloy. Similarly adding chromium to chrome moly flanges aids in enhancing other mechanical properties such as temperature strength, hardness, as well as corrosion resistance.

Grade B7 is a heat treated chromium molybdenum low alloy steel with a minimum tensile strength requirement of 125 ksi (860 Mpa), a yield strength of 105 ksi (720 Mpa) and a maximum hardness of 35HRC. Boltport produces B7 headed and headless bolts from alloy steel AISI 4140 bar stock or forgings. A193 Grade B7 is the most commonly used bolting size, plus A194 Grade 2H nuts are used for bolting carbon steel pipe. A193 B7 bolts are available in metric sizes from M6 to M180 and imperial sizes from 1/4 to 7 inches in diameter.

ASTM A193 Grade B8M Grade 1 Fasteners are similar to Grade B8 but are made of AISI 316 stainless steel instead of AISI 304 stainless steel. Type 316 stainless steel has better corrosion resistance than type 304 stainless steel due to the addition of molybdenum.

We have many years of experience in manufacturing ASME SA335 grade P9 alloy seamless steel pipe and provide high quality, low cost but best service.
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 B36.27

ASTM A335 seamless steel pipe is commonly referred to as chrome molybdenum pipe with chemical elements molybdenum and chromium. Molybdenum can improve steel properties such as strength, elastic limit, wear resistance, impact resistance and hardenability.
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,P93

The high chromium content gives these forgings fittings very good resistance to moisture erosion, which also contributes to their high temperature strength and resistance to scaling at high temperatures.

Which means that one has to know if the alloy steel flange material is critical to achieving good weld integrity and the need for proper filler metal selection.High heat resistance steel grades are generally known as Chromium Molybdenum Steel.

ASTM A182 Stainless Steel Flanges are manufactured per ASME B16.5 150#, 300#, 600#, 900#, 1500#, 2500#.

A182-F11 has good process performance and welding performance, and high durable strength at 500 ~ 550¡æ.

Alloy round steel has high chromium content, which is beneficial to wet corrosion resistance, as well as improving its high temperature strength and high temperature scaling resistance.

The Alloy Steel Weld Neck Flange has a welded neck onto it that holds larger pipes in place for easy welding and installation.

ASTM A335 P9 pipe standards and schedules vary based on the needs of the application. A335 P9 chromium pipe composition contains 9% chromium and 1% molybdenum.
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 B36.55

ASTM A182 Grade F2 is an alloy steel used for preliminary forming into forged products. The properties cited apply to the annealing conditions. F2 is the ASTM designation for the material. K12122 is the UNS number.