ASME B18.31.1M-2008

Selection standard of overall dimension:
ASME B18.31.1M-2008

Material (grade):

SS304,SS304L,SS316,SS316L,A2-70,A4-70,SAF2205,SAF2507,UNS S31803,S32750,S22053,00Cr22Ni5Mo3N,00Cr25Ni7Mo4N,F51,F53,F55,AISI 1045,AISI 410,AISI 4140,AISI 304,AISI 316,Alloy steel Cr-MoAlloy steel,Alloy steelCr-Mo-VAlloy steel,35CrMo,42CrMo etc.;

 

ASTM  A193/A193M B6 B7 B7M B8 B8M B8A B8MA B16 B8-2 B8M-2;

ASME SA-193/SA-193M B6 B7 B7M B8 B8M B8A B8MA B16 B8-2 B8M-2;

ASTM  A320/A320M B6 B7 B7M B8 B8M B8A B8MA B16 B8-2 B8M-2;

ASME SA-320/SA-320M B6 B7 B7M B8 B8M B8A B8MA B16 B8-2 B8M-2;

 

8.8,10.9,12.9Class etc.

Applicable to:
Industrial high and medium pressure valves; Marine, marine, chemical, and fluid engineering; Pressure vessel; Penstock; Petrochemical equipment; Fastener matching of new energy, environmental protection equipment, and other industrial equipment.

Surface treatment:

natural color, blackening, zinc plating (Zn), hot-dip galvanizing (HDZn), nickel plating (Ni), cadmium plating (CAD), Dacrotized, Teflon (PTFE), fluoro (fluoropolymer) coating, xylan1424 coating, etc.








Dimension standard optional:
 

1,Stud:GB/T897,GB/T898,GB/T899,GB/T900,GB/T901,GB/T9125(Full Thread),HG/T20634(Full Thread),HG/T20613(Full Thread),JB/T4707(Equal length double head),NB/T47027(A,B,CType),SH/T3404,DIN938,DIN939,IFI136,ASME B18.31.2,on drawing.

There are A-type thick rod, B-type thin rod, full thread, etc.

 

2,Nut:GB/T6170,GB/T6172,GB/T6175,GB/T9125,HG/T20634,HG/T20613,SH/T3404,DIN934,ANSI(UNC/UNF/UN)/8,ANSI/ASME B18.2.2,UNI5587,UNI5588,ASME B18.2.4.1M,ASME B18.2.4.2M,ASME B18.2.4.3M,ASME B18.2.4.6M.