Grade 5 Threaded Rod Properties

Astm a354 is the classification for grade 8 threaded rod made of high strength steel quenched and tempered.

Grade 5 threaded rod properties. The appropriate fastener specification will depend on the application. Technically all thread rod made from a36 steel should be ordered to a fastener specification such as a307 grade a a307 grade b f1554 grade 36 or sae j429 grade 2. Threaded rod is produced from a variety of materials. The stronger and more heat resistant grade 5 threaded rod is made of medium carbon steel quenched and tempered.

However portland bolt stocks all thread rod manufactured from a36 steel and can certify it as such upon request. This grade is for fittings flanges valves and pressure vessels. This chromium molybdenum steel has similar strength to sae grade 5 fasteners however it is specifically used in high temperature and pressure applications. Technically all thread rod made from a36 steel should be ordered to a fastener specification such as a307 grade a a307 grade b or f1554 grade 36.

Astm a193 grade b7 specification for high tensile bolts screws stud bolts threaded rods anchor bolts and other externally threaded fasteners made from heat treated chromium molybdenum alloy steel grades such as 4140 4142 4145 4140h 4142h and 4145h in sae aisi classification. Grade grade 5 astm a193 b7 chromium molybdenum grade 8 heat treated after threading tensile strength 120 000 psi minimum 125 000 psi minimum 1 100 f tempering temp 150 000 psi minimum yield strength 92 000 psi minimum 105 000 psi minimum minimum 130 000 psi minimum rockwell hardness c25 c34read more. The appropriate fastener specification will depend on the application. Steel threaded rods can be coated or uncoated with zinc being a common coating for electro plated and hot dip galvanized threaded rod.

Astm a193 specification covers requirements for chemical composition mechanical properties hardness heat. However some companies stock all thread rod manufactured from a36 steel and can certify it as such upon. It is classified as astm a449. Mechanical properties of internally threaded fasteners plain galvanize coating 1 min.

Threaded rods are not included in the astm f1554 standard. This table shows the mechanical properties of b7 grade 5 and grade 8. Astm a563 grade 0 1 4 1 1 2 69 000 52 000 b55 c32. 5 8 11 0 83 1810 1610 3 4 10 1 25 2710 2420 7 8 9 1 70 3770 3360 1 8 2 23 4960 4420 1 1 8 7 2 81 6230 5560 1 1 4 7 3 54 8000 7140 1 1 2 6 5 12 11630 10370 performance data grade a headed bolts threaded rods and bent bolts intended for general applications.