Astm a193 b7 stud bolt with two astm a194 2h nuts pipe. Hex bolts, studs and other fasteners are common to the b8m spec. Astm a194 grade 3 fasteners, astm a194 grade 3 fasteners. It covers material specification for bolting used in pressure vessel service, valves, flanges and fittings. Astm a194 a194m 18 standard specification for carbon. Astm a193 grade b16 is a grade specification for bolts, studs, screws, threaded rods and other external threaded fasteners for high tensile bolting in boilers, pressure vessels, valves, pipeline flanges, and fittings intended for use in high temperature, highpressure service or other special purpose applications. Here is the bolt torque chart for the astm a193 b7 grade bolts. Astm a320 l7 has the same chemical and physical properties as b7, with additional. Astm a193 grade b8 188 grade stainless, non magnetic, good corrosion resistance. These nuts are intended for highpressure or hightemperature service, or both. Like the astm a193 specification, unless otherwise specified, the 8un thread series is specified on fastener larger than 1 in diameter.
Astm a193 b8m is manufactured from chromiumnickel stainless steel alloy 316 or uns equivalent s31600 under class 1 and 2 with minimum tensile of 75 and 100 ksi respectively. The astm a194 specification covers a variety of carbon, alloy, and martensitic and austenitic stainless steel nuts. Materialsstudbolts astm a193 b8 astm a193 specification covers alloy steel and stainless steel bolting material for pressure vessels, valves, flanges, and fittings for high temperature or high pressure service, or other special purpose applications. It is a fastener material specification defining typical chemical composition, mechanical properties, hardness requirement. B7 astm a193a193m l7 astm a320a320m service conditions min. Nuts of this specification are intended for highpressure or hightemperature use, or both. Hex heavy nuts are components of boltings sets for flanges. Several grades are covered, including ferritic steels and austenitic stainless steels designated b5, b8, and so forth. Astm a194 a194m standard specification for carbon, alloy steel and stainless steel nuts for bolts hightemperature. Specification for structural joints using astm a325 or. The european law 20096ce regulates the use of cookies. Description astm a193 b7 cr mo aisi 4140,4142,4145 astm a1193 b7m cr mo aisi 4140,4142,4145 astm a193 b16 cr mo v astm a193 b5 5% cr aisi 501 astm a320l7 cr mo aisi 4140,4142,4145 astm a 320. Astm a193 is the standard specification for alloysteel and stainless steel bolts used in hightemperature or highpressure environments or other specialpurpose applications. Astm a193 specification covers requirements for chemical composition.
A194 is a astm international specification for nuts. Steel nuts for stud bolts astm a194 projectmaterials. The appropriate grade of a194 nut will be determined by the chemistry and strength of the fastener grade. Astm a193 grade b7 is a standard specification for high tensile chromium molybdenum alloy steel bolting material for use in high temperature or highpressure service and other special purpose applications. A193 b7 bolting is available in metric sizes from m6 to m180 and imperial sizes from 14 to 7 inches, in diameter. The astm a194 specification covers carbon, alloy and stainless steel nuts intended for use in highpressure andor hightemperature service. Alloysteel and stainless steel bolting for high temperature or high. Stud bolts, astm a193a193m and asme sa193sa193m, grade b7 stud with 2h heavy hex nut, blue fluoropolymer coated, assembly the information below lists the required dimensional, chemical and physical characteristics of the products in this purchase order. A193 b8 bolts a193 b8m bolts a193 b8 class 2 bolts a193 b8m class 2 bolts a320 b8 class 2 bolts a320 b8m class 2 bolts a193 b6 410 bolts duplex 2205 stainless bolts. Astm a193 grade b8 class 2 studs, bolts, and other fasteners found in this grade are considered the same as b8 except strain hardened. Bolt grade nuts specgrade washers specgrade b7 a194 grade 2h f436 b8 class 1 a194 grade 8 ss304 b8m class 1 a194 grade 8m ss316 b8 class 2 a194 grade 8 ss304 b8m class 2 a194 grade 8m ss316. Astm a320 l7m bolts were used to supply bsl2 bolting per api 20e. This superior quality stainless steel asme sa 193 b8m fasteners is being designed and engineered by making use of fines grade basic materials, coupled with latest technology. Astm a193 b7 grade bolts are made of alloy steel, aisi 41404142 quenched and tempered and are intended for use in pressure vessels, valves, flanges, and fittings.
Astm a193 grade b7 fasteners manufacturers astm a193. Astm fasteners our range of products include astm a193 grade b7 full thread hex bolts, astm a193 grade b7 full thread studs, astm a194 grade 2h hex nuts, astm a193 grade b88, b8m8m fastener, high tensile stud grade b7 and astm a193 b7m stud. However there is no astm or other standard where it recommends using a194 gr. Mostly astm a193 grade b7 bolts are selected along with astm a194. Supersedes the june 3, 1994lrfd specification for structural joints using astm a325 or a490 bolts and the june 3, 1994 asd specification for structural joints using astm a325 or a490 bolts. These are widely used in various industries like automobile and mechanical. Astm bolting valvespecification temperature material a193 a320. A193 b8m stud bolt and a194 8m hex nuts ss316 stud bolt. It also covers austenitic stainless steel nuts in the size range 1 4 in. Several grades are covered, including ferritic steels and austenitic stainless steels designated b5, b8,b8m and so. Ferritic steels are heat treated as best suits the high temperature characteristics of each grade.
Below is a basic summary of a few of the common grades within the astm a320 specification. Astm a193 grade b8m this is similar to b8 fasteners except with added molybdenum. These grade b8 screws are made from 188 stainless steel and have good chemical resistance. The chart below matches the compatible grade of nut with the specific grade of bolt. Unless otherwise specified, the american national standard heavy hex series ansi b 18. Allthread studs in astm a193 b7, a193 b7m, a193 b16, a320 l7, a193 b8, a193 b8m, a193 b8 class 2, a193 b8m class 2, low carbon and a449 among others. Astm sa193 b8 stud bolts, astm a193 b8 class 1 hex bolts.
Fastener specifications astm a193, a320, a307, a325, a593. Astm a194 standard specification for carbon and alloy steel nuts for. Various astm carbon steel, alloy steel and stainless steel. The astm a193 specification covers bars, bolts, screws, studs, stud bolts, and wire. Astm a193 alloy steel bolts bolt nut by windo metal. Astm fasteners astm a193 grade b7 full thread hex bolts. Using this website means you give your consent to our use of cookies. Astm a193 grade b7 specification boltport fasteners. Astm a193 specification covers alloy steel and stainless steel bolting material for pressure vessels, valves, flanges, and fittings for high temperature or high pressure service, or other special purpose applications. A wide range of the best quality best quality astm f193 b8 bolts, astm f193 b8 bolts india, astm f193 b8 bolts distributor mumbai, prime quality astm f193 b8 bolts, specialize in astm f193 b8 bolts supplier in india, astm sf193 b8 bolts prices in india, astm f193 b8 alloy steel bolts, astm f193 b8 aisi 4140 bolts, astm f193 b8 aisi 4142 bolts, astm a193 grade b8 pdf, astm a193. A193 summary astm a193 is a fastener specification covering alloy and stainless steel bolts and threaded studs for use with flanges, valves, pressure vessels, and fittings for high temperature and high pressure service. Originally approved in 1936, this specification is heavily utilized in petroleum and chemical construction applications.
Astm a193 grade b8 specification covers requirements for 304304l stainless steel bolting material with high tensile properties, for use in high temperature or highpressure service and other special purpose applications. Astm a194 also covers the american association state highway and transportation officials standard aashto m292. Nuts compatible nuts for a193 bolts comply with astm a194. Astm a193 grade b8m fasteners are subdivided into 2 property classes with different tensile strength. Grades various grades exist within the a193 specification and vary in chemical composition, mechanical properties, and high temperature characteristics. Mostly astm a193 grade b7 bolts are selected along with astm a194 grade 2h nuts. A193 covers alloy steel and stainless steel bolting for pressure vessels, valves, flanges and fittings for hightemperature or highpressure service, or other special purpose applications.
Prepared by rcsc committee 15specifications and approved by the research council on structural connections. Stud bolt astm a193 a193m standard specification for alloysteel and stainless steel bolting materials bolts, studs. A193 gr b8m class 1 is a carbide solutiontreated 316 stainless steel bolting material with minimum tensile strength requirement of 75 ksi 515 mpa, yield 30 ksi 205 mpa, and maximum hardness of 223 hbw 96 hrb. A number of other less common grades of astm a320 exist, but not covered in the description below. Astm a194 is the standard specification for carbon and alloy steel nuts for bolts used in equivalent highpressure or hightemperature environments. Astm a193 and a194 bolts and nuts from glaser and associates are available in a range of grades, including b7, b16 b8 and b8m to meet different design, service conditions, mechanical properties, and high temperature requirements.
P stud bolts, astm a193a193m and asme sa193sa193m, grade b7m stud with 2hm heavy hex nut, plain, assembly the information below lists the required dimensional, chemical and physical characteristics of the products in this purchase order. A193 grade b7 is the most commonly used bolt specification coupled with a194 grade 2h nuts for bolting carbon steel pipeline. Astm a193 grade b8m is a material specification for high tensile stainless steel bolts, stud bolts, screws, threaded rods and similar fasteners, for high temperature applications. Euroguarco spa italy euroguarco spa italy piping division. Below are some of the astm a193 grades used commonly by atlanta rod. There are several grades under astm a193 namely b7, b8 class 1, b8m class 1, b8 class 2, b8m class 2. Referenced documents for undated referenced documents the. Buy astm a193 bolts astm a193 screws, threaded rod. Lightning bolt is an iso 9001 certified fastener manufacturer for astm a193 grade b8m class 2 stud bolts.
The material may be further processed by centerless grinding or by cold drawing. Is it acceptable to use astm a194 2h and 2hm material for nuts 34 nominal and larger. A193 is a astm international specification for bolts and studs. However, there are multiple grades within the a194 specification. Astm a193 and a194 bolts and nuts from glaser and associates are available in a range of grades, including b7, b16 b8 and b8m to meet different design, service conditions, mechanical properties.
Astm a193b7, astm a320l7 for low temperature service, and astm. Boltport uses alloy steel aisi 4140 bar stock or forging stock to produce b7 headed and nonheaded bolts. Astm a193 b7 is an alloy which includes chromium and molybdenum for added strength and corrosion resistance, rendering it suitable for applications that are highly susceptible to corrosion at high temperatures. A193 b7 heavy hex bolts are ideal for industrial and structural bolting application with hightemperature or highpressure service. Also known as pressure bolts, these screws meet the highpressure and hightemperature regulations of astm a193 and are used to secure pressure tanks, valves, and flanges. Note 3for grades of alloysteel bolting suitable for use in low temperature applications, reference should be made to specification. Astm a193 grade b8m specification boltport fasteners.