ASME

ASME

At INSCO fasteners we offer the complete range of ASTM A193 B7 stud bolt with two ASTM A194 2H nuts ANSI/ASME b18.2.1 Fully Threaded Stud Bolts ASME B18.2.2 Hex Nuts

ASME B18.2.1 Stud Bolt &ASME B18.2.2 hex nuts. These are available in below strength class


Strength Grades
DIN 931/933 Grade 4.6, 4.8, 5.6, 5.8, 8.8, 10.9, 12.9
DIN 931/933 SUS 304, 316
ASTM A307 Grade A & B
ASTM A320, A320M Grade L7, L7M, B8, B8M
ASTM A325, A325M Grade 8.8
ASTM A490, A490M Grade 10.9
ASTM A193/A193M Grade B7, B7M, B8, B8M, B16
  • A193 B6 – Heat treated 410 stainless (410HT)
  • A193 B8 – Produced to grade AISI 304, carbide solution treated, standardly available in class 1
  • A193 B8M – Produced to grade AISI 316, carbide solution treated, standardly available in class 1
  • ZA193 B8C- Grade 347 stainless material
  • A193 B8T – Grade 321 stainless material
  • A320 B8 – Produced to grade AISI 304, carbide solution treated, standardly available in class 1
  • A320 B8M – Produced to grade AISI 316, carbide solution treated, standardly available in class 1
B7 Alloy steel, AISI 4140/4142 quenched and tempered
B8 Class 1 Stainless steel, AISI 304, carbide solution treated.
B8M Class 1 Stainless steel, AISI 316, carbide solution treated.
B8 Class 2 Stainless steel, AISI 304, carbide solution treated, strain hardened
B8M Class 2 Stainless steel, AISI 316, carbide solution treated, strain hardened
B16 A heat-treated chromium-molybdenum-vanadium steel for high-pressure, high-temperature service.
Grade Size Tensile ksi, min Yield, ksi, min Elong, %, min RA % min
B7 Up to 2-1/2 125 105 16 50
2-5/8 – 4 115 95 16 50
4-1/8 – 7 100 75 18 50
B8 Class 1 All 75 30 30 50
B8M Class 1 All 75 30 30 50
B8 Class 2 Up to 3/4 125 100 12 35
7/8 – 1 115 80 15 35
1-1/8 – 1-1/4 105 65 20 35
1-3/8 – 1-1/2 100 50 28 45
B8M Class 2 Up to 3/4 110 95 15 45
7/8 – 1 100 80 20 45
1-1/8 – 1-1/4 95 65 25 45
1-3/8 – 1-1/2 90 50 30 45
B16 Up to 2-1/2 125 105 18 50
2-5/8 – 4 110 95 17 45
4-1/8 – 7 100 85 16 45
1-3/8 – 1-1/2 90 50 30 45
Element B7 (AISI 4140) B8 (AISI 304) B8M (AISI 316) B16 (AISI 4140)
Carbon 0.37 – 0.49% 0.08% max 0.08% max 0.37 – 0.49%
Manganese 0.65 – 1.10% 2.00% max 2.00% max 0.65 – 1.10%
Phosphorus, max 0.035% 0.045% 0.045% 0.035%
Sulfur, max 0.040% 0.030% 0.030% 0.040%
Silicon 0.15 – 0.35% 1.00% max 1.00% max 0.15 – 0.35%
Chromium 0.75 – 1.20% 18.0 – 20.0% 16.0 – 18.0% 0.75 – 1.20%
Nickel 8.0 – 11.0% 10.0 – 14.0%
Molybdenum 0.15 – 0.25% 2.00 – 3.00% 0.15 – 0.25%