|Standard / Material grade||C||MN||P||S||Si||CR||MO||AI||V|
|ASTM A193 B7 (Cr- Mo AISI 4140,4142,4145 )||0.37-0.49||0.65-1.10||0.035 Max||0.04 Max||0.15-0.35||30.75-1.20||0.15-0.25||-||-|
|ASTM A1193 B7M (Cr- Mo AISI 4140,4142,4145 )||0.37-0.49||0.65-1.10||0.035 Max||0.04 Max||0.15-0.35||30.75-1.20||0.15-0.25||-||-|
|ASTM A193 B16 (Cr- Mo -V )||0.36-0.47||0.45-0.70||0.035 Max||0.04 Max||0.15-0.35||0.80-1.15||0.50-0.65||0.015Max||0.25-0.35|
|ASTM A193 B5 (5% Cr AISI 501)||0.10 max||1.00 max||0.040 max||0.030 Max||1.00 Max||0.40 -6.00||0.40 -0.65||-||-|
|ASTM A320-L7 (Cr- Mo AISI 4140,4142,4145 )||0.38-0.48||0.75-1.00||0.035 Max||0.04 Max||0.15-0.35||0.80-1.10||0.15-0.25||-||-|
|ASTM A 320 L7M||0.38-0.48||0.75-1.00||0.035 Max||0.04 Max||0.15-0.35||0.80-1.10||0.15-0.25||-||-|
|ASTM A194 Gr.2H||0.40 Min||1.00 Max||0.040 Max||0.050 Max||0.40 Max||-||-||-||-|
|ASTM A194 Gr.2HM||0.40 Min||1.00 Max||0.040 Max||0.050 Max||0.40 Max||-||-||-||-|
|ASTM A194 Gr.4||0.40-0.50||0.70-0.90||0.035 Max||0.04 Max||0.15 - 0.35||0.20 - 0.30||0.15-0.25||-||-|
Over the past few years we have manufactured many different kind of stainless steel grades of bolts and nuts, however the the above grades mentioned in the table are the main grades which we are manufacturing consistantly. With constant improvememt in quality we have been able to excell in the manufacturing process for the above steels and their respective grades.
Bigboltnut manufactures and exports the entire range of Petrochemical stud bolts, alloy steel bolts, alloy steel bolting, alloy steel stud bolts, stud bolts oil and gas, B-7 stud bolts the popular grades of Alloys steel are from ASTM A 193 / SA 194 and A 194 / SA 194 grades like B7, B7M, L7 and L7M grades.