ASTM A320 Grade L70 Stud Bolts | UNS G41400 Specifications

ASTM A320 Grade L70 Stud Bolts

G41400

A320 Grade L70 Stud Bolts are manufactured from 4140 Alloy Steel in accordance with ASTM A320 specification. Torqbolt is a prominent A320 Grade L70 Stud Bolt supplier in India.

Related Products

42Crmo4 Stud Bolts Astm A193 Grade B7 Bolts Astm A193 Grade B7M Bolts Astm A194 Grade 7 Nuts Astm A194 Gr. 7M Nuts Astm A320 Grade L7 Bolts Astm A320 Grade L70 Stud Bolts Astm A320 Grade L7M Screws

ASTM A320 Grade L70 Stud Bolts Properties

ASTM A320 Grade L70 Stud Bolts Chemical Requirements

Ferritic Steels

Grade Symbol Description C Mn P,  max S, max Si Ni Cr Mo B
ASTM A320 L70 Cr - Mo - B Range,% 0.38 - 0.48C 0.75 - 1.00 0.035 0.04 0.15 - 0.35 ... 0.80 - 1.10 0.15 - 0.25 ...
Product Variation, % Over or Under 0.02 0.04 0.005 over 0.005 over 0.02 ... 0.05 0.02 ...

ASTM A320 Grade L70 Stud Bolts Mechanical Requirements

Ferritic Steels

Class and Grade, Diameter, in. [mm] Heat Treatment Minimum Tempering Temperature, °F [°C] Tensile Strength, min, ksi [MPa] Yield Strength, min, ksi [MPa] (0.2 % offset) Elongation in 2 in. or 50 mm, min, % Reduction of Area, min, % Hardness, max
ASTM A320 L70 21/2 [65] and underA quenched and tempered 1100 [593] 125[860] 105[725] 16 50 321 HBW or 35  HRC

ASTM A320/A320M Impact Test Requirements

Grade Test Temperature CVN Specimen Section Size, mm Min Average Impact Toughness of Three Test Specimens, ft-lbf [J] Min Impact Value of a Single Specimen of Set of Three, ft-lbf [J]
°F °C
ASTM A320 L70 - 100 - 73 10 × 10 20 [27] 15 [20]
10 × 7.5 16 [22] 12 [16]
10 × 10 20 [27] 15 [20]

Related Keywords

  • Grade L70 Threaded Rods
  • Astm A320 Grade L70 Hex Cap Screws
  • A320 Gr L70 Studs
  • Asme Sa 320 Gr L70 Socket Head Cap Screws
  • Astm A320 Grade L70 Bolts
  • A320 L70 Specification Cap Screws
  • Sa320 L70 Specification Stud Bolts
  • Sa320 Gr L70 Stud Bolt
  • Asme Sa 320 Gr L70 Threaded Rods
  • Grade L70 Socket Head Cap Screws
  • Sa320 Gr L70 Bolts
  • A320 L70 Specification Square Bolts
  • Asme Sa 320 Gr L70 Screws
  • Sa320 L70 Specification Square Bolts
  • A320 Gr L70 Socket Head Cap Screws
  • Sa320 L70 Specification Studs
  • Grade L70 Bolting
  • Astm A320 Gr L70 Screws
  • Astm A320 Gr L70 Socket Head Cap Screws
  • Astm A320 L70 Square Bolts
  • Sa320 Gr L70 Heavy Hex Screws
  • Asme Sa 320 L70 Stud Bolts
  • Asme Sa 320 Gr L70 Hex Bolts
  • Astm A320 Gr L70 Hex Bolts
  • Astm A320 L70 Heavy Hex Screws
  • Astm A320 Grade L70 Screws
  • A320 Gr L70 Cap Screws
  • Sa320 Gr L70 Cap Screws
  • Astm A320 Gr L70 Studs