High strength astm a194 grade 2h nuts are common in the marketplace and are often substituted for astm a563 grade dh nuts due to the limited availability of dh nuts in certain diameters and finishes. Astm a194 grade 2h heavy hex nut supplier manufacturer. Suggested assembly torque values the tapped hole or nut must have an equal or greater proof load than the studs minimum ultimate tensile strength. Looking for fabory 3410 hex nut heavy, hot dipped galvanized finish, grade 2h steel, right hand, astm a194, pk10 1xa25. Fabory 789 hex nut heavy, black oxide finish, grade 2h. Torqbolt is a well known stockist of bright finish astm a194 grade 2 hex bars with across flats ranging from. Looking for fabory 789 hex nut heavy, black oxide finish, grade 2h steel, right hand, astm a194, pk80 22uk92. Astm a193 scope this specification is heavily utilized in petroleum and chemical construction applications and covers alloy steel and stainless steel bolting materials for high temperature or highpressure service. Heavy hex nut astm a194 grade 4 alloy steel plain r.
Heavy hex nut, astm a194a194m and asme sa194asme sa194m. Last previous edition approved in 2015 as a194 a194m 15a. Masoneilan 0 series double ported globe valve valves. We offer imperial, metric sized hex nuts and heavy hex nuts.
Astm a194 grade 2h nuts and heavy hex nut dimensions. Grade 2h nuts can be produced by means of hot forging. Heavy hex nut, astm a194a194m and asme sa194sa194m, 2h. Astm a194 material and physical properties asme b1. Astma194 standard specification for carbon steel, alloy. Grade substitutions without the purchasers permission are not allowed. Mechanical properties of externally threaded fasteners. Astm a193 bolts studs and rods atlanta rod and manufacturing. Last previous edition approved in 2012 as a194a194m12a. Astm a194 is the standard specification for carbon and alloy steel nuts for bolts used in equivalent highpressure or hightemperature environments. Series 59 fullport ball valves manual and automated valves for processes requiring maximum.
Class 150, 300, and 600 flanged 2 12 50 300 mm size weight. Heavy hex nuts, astm a194 asme sa194 2h, plain fastenal page 1 of 2. The most versatile and widely used nut, it should be used with any low carbon bolt or screw that is heattreated. Below are some of the astm a193 grades used commonly by atlanta rod. Sizes 2 4 5 10 12 24 liquid open area steam open area 0. Stud bolt manufacturer, astm a193 b7 stud bolt with two astm a194 2h nuts,asme b18. The material may be further processed by centerless grinding or by cold drawing.
The astm a194 grade 2h heavy hex nut is designed to be used with bolts in highpressure. Astm a193 b7 stud bolt with two astm a194 2h nuts pipe. This specification is intended for use in pressure vessels, valves, flanges, and fittings. An astm designation number identifies a unique version of an astm standard. Fnl grade 9 thick hex nut astm a194grade 8 heavy hex aisi 304 14 1 12 carbon steel astm a563grade a heavy hex medium carbon steel carbon steel 180,000 175,000 14 4 b68 c32 c32 c32. Fnl grade 9 thick hex nut astm a194 grade 8 heavy hex aisi 304 14 1 12 carbon steel astm a563 grade a heavy hex medium carbon steel carbon steel 180,000 175,000 14 4 b68 c32 c32 c32. Steel nuts for stud bolts astm a194 projectmaterials. Astm a194 grade 16 specification boltport fasteners. Astm a194 grade 2 nuts square heavy hex nuts torqbolt. The astm a194 specification covers carbon, alloy and stainless steel nuts intended for use in highpressure andor hightemperature service. Masoneilan pressure regulators steam, gas or liquid.
For the material to be classed as grade l7 it must have the following values. Astm a563 grade dh3 atmospheric corrosion resistant steel, quenched and tempered 14 thru 4 175 c24 c38 5, 9 astm a194 grade 1 carbon steel 14 thru 4 b70 7 astm a194 grade 2 medium carbon steel 14 thru 4 150 159 352 78 astm a194 grade 2h medium carbon steel, quenched and tempered 14 thru 4 175 c24 c38 7. The astm a194 grade 2h heavy hex nut is designed to be used with bolts in highpressure and hightemperature service in a plain finish. Heavy hex nuts grade 2h astm a194 washers astm f436 hardened steel bolts and nuts may be supplied plain zinc plated hot dip galvanized cad plated location buried submerged above grade below grade. Astm a194 a194m 06a standard specification for carbon. Unless otherwise specified, heavy hex nuts ansi b 18. The astm a194 specification covers carbon, alloy and stainless steel nuts intended for use in highpressure andor hightemperature. Astm a194 industrial fasteners nuts and bolts grainger. Grade 1 grades 2, 2hm, 6, 6f, 7m grades 2h, 3, 4, 7, 16. Unf thread proof loads shall have the same proof load values as unc. Astm a194 specification carbon and alloy steel nuts jf engg. Active standard astm a194 a194m developed by subcommittee. The astm a194 grade 2h heavy hex nut is designed to be used with bolts in high pressure. Carbon and alloy steel nuts for bolts for high pressure or high temperature service, or both1.
Astm a194 grade 1 carbon steel 14 thru 4 b70 7 astm a194 grade 2 medium carbon steel 14 thru 4 150 159 352 7, 8 astm a194 grade 2h medium carbon steel quenched and tampered 14 thru 4 175 c24 c38 7 astm, sae and iso bolting material. A 194a 194m 05aendorsed by manufacturers standardization society of the valve and fittings industry used in usnrcrdt standards. Inverted bucket steam trap with integral strainer, type. An astm a320a320m current issue grade l7 studbolt is manufactured from aisi 4140 material that has undergone an impact test at 101. These nuts are made from grade 2h material as specified by astm a194. Astm a194 a194m18 standard specification for carbon steel, alloy steel, and stainless steel nuts for bolts for high pressure or high temperature service, or both. Heavy hex nuts grade 2h astm a194washers astm f436 hardened steel black plain zinc plated hot dip galv buried submerged above grade below grade other. Plain finish, or bare metal finish which may contain a light coating of oil. See the chemical composition and physical properties of astm a194 grade 6f 416 completed nuts, find alternative materials, and connect with suppliers.
Alloy steel astm a194 gr 2h zinc dichromate plated. Astm a194 a194m06a, standard specification for carbon and alloy steel nuts for bolts for high pressure or high temperature service, or both, astm international, west conshohocken, pa, 2006. Size of speciment mm minimum impact value required for minimum impact value permitted for. Various astm carbon steel, alloy steel and stainless steel. Astm a194 specification for high tensile nuts and other internally threaded fasteners for high pressure or high temperature bolting applications. This document is available in either paper or pdf format. Astm a194 grade 7 nuts, sa 194 gr 7 heavy hex nuts, gr 7. Jayant impex pvt ltd, india, maharashtra, khopoli, mumbai are leading astm a194 grade 2h heavy hexagonal nuts manufacturer,supplier, exporter, trader, wholesaler, stockiest. Unless otherwise specified, the american national standard heavy hex series ansi b 18. Values in this chart are advisory only, all applications vary. Grade 5 per sae j429, zincclear plated per astm b633. The astm a193 specification covers bars, bolts, screws, studs, stud bolts, and wire. Astm a194 also covers austenitic stainless steel nuts in the size range 1.
Astm a194 grade 2h is a standard material specification for high tensile nuts and other internally threaded fasteners, made from carbon steel. The astm a194 specification covers a variety of carbon, alloy, and martensitic stainless steel nuts in the size range 1. This specification covers a variety of carbon, alloy, and martensitic and austenitic stainless steel nuts. These nuts are intended for highpressure or hightemperature service, or both. Stainless steel alloy astm a194 nuts bolts and fasteners. Astm a194 a194m 16a standard specification for carbon. Euroguarco spa italy euroguarco spa italy piping division. A194 a194m specification for carbon steel, alloy steel, and stainless steel nuts for bolts for high pressure or high temperature service, or both. Astm a563m and astm a194 specifications and are designed. Grade 2h per astm a194 a194m and asme sa194sa194m unf thread proof loads shall have the same proof load values as unc threads and shall meet the core hardness requirements when sectioned and tested per annex a3 per astm a370. The astm a194 specification is under the jurisdiction of astm committee a1 subcommittee on valves, fittings, bolting, and flanges for high and subatmospheric. Grade 2h per astm a194 a194m and asme sa194 sa194m sizes larger than 114 nominal diameter shall be accepted if meeting the hardness requirement of 35 hrc max. For annual book of astm standards volume information, refer to the standards document summary page on the astm.
B7 zinc plated nuts astm a194 2h zinc plated 316 ss. Application internal thread, for bolt, for high temperature, for cap screw, for threaded rod, for anchor bolt availability in select sizes. Astm a194 a194m15, standard specification for carbon steel, alloy steel, and stainless steel nuts for bolts for high pressure or high temperature service, or both, astm international, west conshohocken, pa, 2015. The availability of a563 grade dh nuts in nominal sizes 34. Torqbolt is a well known stockist of bright finish astm a194 grade 1 hex bars with across flats ranging from. Astm a194 specification covers chemical composition, hardness, heat treatment, proof load and marking requirements for various grades of alloy and stainless steel nuts. Boltport fasteners is a manufacturer of astm a194 grade 2h nuts as standard hex or heavy hex. Astm a194 grade 16 is a standard material specification for high tensile nuts and other internally threaded fasteners, made from chromiummolybdenumvanadium steel. The astm a194 specification is under the jurisdiction of astm. Astm a194 grade 2h nuts square heavy hex nuts torqbolt. Nuts up to and including 1inch nominal size shall be unc series class 2b fit. Astm a276 ty 440c stellite or equivalent 6 uns 30006 15 lower seat ring 316 st. For smaller quantities, astm a194 grade 2h should be considered. Nut strength level designation astm a194 grade 2h heavy hex nut.
Additional information can be found in astm 193a1293m, dtd 1998 alloy steel and stainless bolting materials for high temperature services and in astm a194 a194m, dtd 1998 carbon and alloy steel nuts for bolts for high temperature services. Astm a194 a194m 20 standard specification for carbon. P heavy hex slotted nuts, astm a194 a194m and asme sa194sa194m 2h, plain the information below lists the required dimensional, chemical and physical characteristics of the products in this purchase order. Astm a194 grade 2h specification boltport fasteners. For hightemperature, highpressure in combination with alloy studs and bolts. Bolts in astm a193 and nuts in astm a194 all grades. F316 304 ss spiral wound graphite bolts astm a193 gr. Astm a grade 2h nuts are available in form of hex nuts, heavy hex nuts and square nuts, manufactured from high tensile carbon steel material. Astm a194 a194m 15 standard specification for carbon. Astm a194 grade 1 nuts square heavy hex nuts torqbolt. Grade minimum tempering temperature, f c 2h 850 455. Earnest machine products offers heavy hex jam nuts in sizes 14 to 3 manufactured to the grade.
Astm a194 grade grade 4 material alloy steel coating plain unit inch ansiasme b18. Astm a194 scope this specification covers carbon, alloy and stainless steel nuts intended for use in highpressure andor hightemperature service. Technical information a7 hex nut markings and properties astm a194 grade 2, 2h, 4 and 7 mechanical properties an standard 818. Astm compatible nut a194, gr 2h a194, gr 2hm a194, gr 8 diameter tensile strength ksi min.
1021 1459 1306 1636 904 1513 1253 100 1034 206 1354 469 754 1265 843 803 740 612 892 1398 1423 158 578 571 10 45 265 1290 373 1219 1345 1276 888 515 997 1250 1284 69 272