Astm a194 grade grade 4 material alloy steel coating plain unit inch ansiasme b18. Astm a194 a194m 08 standard specification for carbon and. A194 covers a variety of carbon, alloy and stainless steel nuts in sizes 14 through 4, m6 through m100 nominal in metric. The astm a194 specification covers carbon, alloy and stainless steel nuts intended for use in highpressure andor hightemperature service. There are 830 suppliers who sells astm a194 grade 2h on, mainly located in asia. Heavy hex nuts, astm a194 asme sa194 2h, plain fastenal page 1 of 2.
Astm a and f are the astm specifications that cover the requirements for. High tensile steel astm a 194 grade 2h nuts heavy hex nut. Bolt grade nuts spec grade washers spec grade b7 a194 grade 2h f436 b8 class 1 a194 grade 8 ss304. Torqbolt is a well known stockist of bright finish astm a194 grade 2h hex bars with across flats ranging from. Practical design and detailing of steel column base plates. Heavy hex nut astm a194 grade 8m stainless steel r. The astm a194 specification is under the jurisdiction of astm committee a1 subcommittee on valves, fittings, bolting, and flanges for high and subatmospheric. When you need astm a194 grade 8m strain hardened heavy hex nuts fast call ameribolt, inc. The top countries of suppliers are india, china, and taiwan, china, from which the percentage of astm a194 grade 2h supply is. Values in this chart are advisory only, all applications vary. Plain finish, or bare metal finish which may contain a light coating of oil. 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. Unless otherwise specified, heavy hex nuts ansi b 18.
The astm a194 specification covers a variety of carbon, alloy, and martensitic stainless steel nuts in the size range 1. Nuts of this specification are intended for highpressure or hightemperature use, or both. Heavy hex nut astm a194 grade 4 alloy steel plain r. Ptfe coatings, lubrication, and assembly factors can alter these values.
The astm a194 specification covers heavy hex nuts used in either high pressure or high temperature applications. Last previous edition approved in 2015 as a194a194m 15a. L7 chromiummolybdenum alloy steel per astm a194, grade 7 l7m chromiummolybdenum alloy steel per astm a194, grade 7m, 235 bhn max, astm a320, section 9 mkh monel k500, cold drawn and aged hardened, qqn286 and astm f467 8f 303 stainless steel per astm a194, grade 8f 2hyc astm a194, grade 2h, yellow zinc dichromate plated durco. Astm a194 grade 2h nuts are commonly substituted for astm a563 grade dh.
P heavy hex slotted nuts, astm a194a194m and asme sa194sa194m 2h, plain the information below lists the required dimensional, chemical and physical characteristics of the products in this purchase order. Application internal thread, for bolt, for cap screw, for threaded rod, for anchor bolt, for high temperature, for high pressure, for corrosion resistance availability. 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. For grade 8 nutsthe quantity of all the nuts of a single nominal diameter and grade made from the same heat of steel and made by the same manufacturing process. Technical information a7 hex nut markings and properties astm a194 grade 2, 2h, 4 and 7 mechanical properties an standard 818. Astm a194 scope this specification covers carbon, alloy and stainless steel nuts intended for use in highpressure andor hightemperature service. These nuts are intended for highpressure or hightemperature. Astm a194 a194m 14 standard specification for carbon. Application internal thread, for bolt, for high temperature, for cap screw, for threaded rod, for anchor bolt availability in select sizes. The strength of the a194 2h nut exceeds that of the a563 dh nut. This document is available in either paper or pdf format. The astm a194 grade 2h heavy hex nut is designed to be used with bolts in high pressure.
Heavy hex nuts grade 2h astm a194washers astm f436. Torqbolt is a well known stockist of bright finish astm a194 grade 2 hex bars with across flats ranging from. Astm a194 grade 8ma heavy hex nuts a194 grade 8ma nuts. Astm a194 grade 2 nuts square heavy hex nuts torqbolt. Color codes for painting the ends of f1554 graded rods. Astm f covers the requirements for hotdip zinc coating applied to carbon steel and alloy steel bolts, screws, washers, nuts, and special. For hightemperature, highpressure in combination with alloy studs and bolts. 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 astm a194 grade 2hm medium carbon steel, quenched and tempered 14 thru 4 150 159 237 7, 8. A wide variety of astm a194 grade 2h options are available to you, such as gb. A194 is a astm international specification for nuts. The most versatile and widely used nut, it should be used with any low carbon bolt or screw that is heattreated.
Astm a194 a194m08, standard specification for carbon and alloy steel nuts for bolts for high pressure or high temperature service, or both, astm international, west conshohocken, pa, 2008. 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 a does not cover threaded bolts and fasteners. Astm a194 also covers austenitic stainless steel nuts in the size range 1. Astm a194a194m17a standard specification for carbon steel, alloy steel, and stainless steel nuts for bolts for high pressure or high temperature service, or both. These nuts are intended for highpressure or hightemperature service, or both. Nuts up to and including 1inch nominal size shall be unc series class 2b fit. Astma194 standard specification for carbon steel, alloy. Bolts in astm a193 and nuts in astm a194 all grades. Vani impex offering high tensile steel astm a 194 grade 2h nuts heavy hex nut at rs 125kilogram in ludhiana, punjab. We stock astm a194 2h heavy hex nuts in a wide variety of finishes, as well as different countries of origin to support our customers needs for. Application internal thread, for bolt, for cap screw, for threaded rod, for anchor bolt, for high temperature, for. Each alloy shall conform to the chemical composition requirements prescribed.
It also covers austenitic stainless steel nuts in the size range 1 4 in. Unless otherwise specified, the american national standard heavy hex series ansi b 18. The top countries of suppliers are india, china, and taiwan, china, from which the percentage of astm a194 grade 2h supply is 1%, 99%, and 1% respectively. The material may be further processed by centerless grinding or by cold drawing. Astm a194 a194m17a standard specification for carbon steel, alloy steel, and stainless steel nuts for bolts for high pressure or high temperature service, or both. 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.
Euroguarco spa italy euroguarco spa italy piping division. These nuts are made from grade 2h material as specified by astm a194. Astm a563m and astm a194 specifications and are designed. 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 a194 is the standard specification for carbon and alloy steel nuts for bolts used in equivalent highpressure or hightemperature environments. Astm a194 grade 7 heavy hex nuts a194 grade 7 nuts. The astm a193 specification covers bars, bolts, screws, studs, stud bolts, and wire. Astm a194 grade grade 8m material stainless steel unit inch ansiasme b18.
A194 is a specification for pressure vessel and nonbuilding uses, but the grades. Below are some of the astm a193 grades used commonly by atlanta rod. Astm a194 specification for high tensile nuts and other internally threaded fasteners for high pressure or high temperature bolting applications. Astm a194 a194m 08 standard specification for carbon. Suggested assembly torque values the tapped hole or nut must have an equal or greater proof load than the studs minimum ultimate tensile strength. The astm a194 grade 2h heavy hex nut is designed to be used with bolts in highpressure. Astm a193 bolts studs and rods atlanta rod and manufacturing. A194 a194m 14 standard specification for carbon and alloy steel nuts for bolts for high pressure or high temperature service, or both, bolting, chemical analysis, coated, marking on fasteners, plated.
Astm a194 specification covers chemical composition, hardness, heat treatment, proof load and marking requirements for various grades of alloy and stainless steel nuts. 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 astm a194 grade 2hm medium carbon steel. Astm a194 a194m 14 standard specification for carbon and. Astm a194 specification carbon and alloy steel nuts jf engg. Astm a194 grade 2h nuts square heavy hex nuts torqbolt. Imports from asia and other nations to support requests for no china material.
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