ASTM A193 / A193M Grade B7 material is one of our most common material for anchor bolt foundation system. 

    The standard ASTM A193 covers alloy and stainless steels for pressure vessels, valves, flanges, and fittings for high temperature service. Steel grade A193 specification covers products bars, bolts, screws, studs, stud bolts and wires. Here we only talk about grade B7.

    ASTM A193/A193M B7  is steel grade for alloy steels, equivalent to AISI 4140, 4142, GB standard 42CrMO, often quenched and tempered for high properties.

    Anyang Longteng Heat Treatment Material Co.,Ltd is a threaded bolt manufacturer. We provide heat treatment services, cold thread, random length, bolt assemblies supply. Contact infor@aylttg.com for a free quote.

    We produce 42CrMoA steel bolts for wind turbine foundation anchor cages. 42CrMoA is a high level alloy steel grade of GB standard, which equal to A193 B7. This replacement has been proven by many overseas clients. Contact us, we will send you original mill test certificate of 42CrMoA.

    Rod Properties:

    Property Class:  8.8  9.8  10.9  12.9  

    Diameter :  M16 to M56

    Tensile Strength :  860 MPa, 900MPa, 1040Mpa, 1220Mpa , or according to client's requirements.

    Yield strength :  600 MPa, 650 MPa, 830 MPa, 970 MPa, or according to client's requirements.

    -40 ℃ Impact energy: higher than 27J

    Rockwell Hardness HRC: 23 to 44, or according to client's requirements.

Above drawing is an example for 3 anchor bolt locations within one anchor bolt cage. bar and thread dimensions, accesories are a little different because of their application and position. Copy right: Anyang Longteng Heat Treatment Material Co.,Ltd.  Any questions, please contact infor@aylttg.com.