A193 B16 and A194 Gr.4

[ning001]

Does anyone know where to find mechanical and physical properties of A193 B16 bolt material and A194 Gr.4 nut material? Thanks a lot.

 

[kenvlach]

ASTM A193/A193M-06a, "Standard Specification for Alloy-Steel and Stainless Steel Bolting Materials for High Temperature or High Pressure Service and Other Special Purpose Applications."

http://www.astm.org/cgi-bin/SoftCar...EDLINE_PAGES/A193A193M.htm?L+mystore+uans4890

Table 1 gives composition, Tables 2 & 3 give Mechanical properties in inch-pound and metric, respectively.

Mech props depend on size. For diameters < 2.5 inch, B16 has YS 105 ksi, TS 125 ksi, elongation 18%, max hardness 321 HB or 35 HRC.

ASTM A194/A194M-06, "Standard Specification for Carbon and Alloy Steel Nuts for Bolts for High Pressure or High Temperature Service, or Both."

http://www.astm.org/cgi-bin/SoftCar...EDLINE_PAGES/A194A194M.htm?L+mystore+uans4890

The mech. data for nuts is given as 'Proof Load' on either a threaded mandrel or a hardened steel cone for various thread sizes. E.g., for 1-inch Grade 4 hex nut on threaded mandrel, proof load is 90,900 pounds_f and proof stress is 175 ksi. For heavy hex: 106,000 pounds_f and proof stress is 150 ksi for heavy hex. Proof loads are most definitely not design loads.


These 2 standards cost $48 & $40. If you might need others, buy the 2006 Annual Book of ASTM Standards vol. 01.01, either book or CD, for $216.

http://www.astm.org/cgi-bin/SoftCar...2006/01.01.html?L+mystore+sxhl5033+1154373416

 

[JLSeagull]

Lacking a copy of the standard, consider contacting the fastener supplier and asking them about the specification properties for their bolts and nuts made to ASTM A193. However, be prepared for a response that they comply with ASTM A193 specifications.

 

[ning001]

Thanks a lot for the reply, JLSeagul and Kenvlach.