ASTM A320 Bolts

ASTM A320 Bolts

astm-a320-bolts

Steel Tubes India is the biggest producer Of ASTM A320 Bolts Fastener range and stock in all sizes of fasteners, nuts, washers, hex attachment screws, metal string screws, self-tapping & wood sinks and security items metric, majestic and in all evaluations. A320 is the standard detail for amalgam steel and treated steel jolts utilized in high-temperature or high-weight situations or other uncommon reason applications. Steel Tubes India has been assembling ASME SA 320 SS Bolts, ASTM A320 Bolts Head Hex Bolts and custom latches as necessity of client since 1968. Initially endorsed in 1948, the ASTM A320 Bolts determination covers compound steel and hardened steel darting materials for low temperature benefit. This standard spreads moved, produced, or strain solidified bars, fasteners, screws, studs, and stud screws utilized for weight vessels, valves, ribs, and fittings. Like the ASTM A193 particular, except if generally determined, the 8UN string arrangement is indicated on clasp bigger than 1" in breadth.

The ASTM A320 Bolts detail is another well known determination utilized in the clasp business. This detail covers composite steel darting materials for weight vessels, valves, spines, and fittings for low-temperature benefit. Each amalgam will fit in with the recommended concoction structure necessities. The material, as spoken to by the strain examples, will comply with the necessities as to malleable properties, for example, rigidity, yield quality, extension, and hardness.

The material will meet the endorsed effect vitality assimilation prerequisites and the suggested test temperature. Mechanical tests will be directed on the material, to be specific: affect testing, pressure testing, and hardness testing. A few evaluations are secured, including both ferritic and austenitic steels assigned L7, B8, and so forth. Determination will rely upon configuration, benefit conditions, mechanical properties, and low-temperature qualities.

ASTM A320 Bolts particular spreads combination steel blasting materials for weight vessels, valves, spines, and fittings for low-temperature benefit. Each compound will adjust to the recommended synthetic structure prerequisites. The material, as spoken to by the pressure examples, will fit in with the prerequisites as to elastic properties, for example, rigidity, yield quality, extension, and hardness.

ASTM A320 Bolts Specification

ASTM A320 Bolts particular spreads composite steel and hardened steel blasting materials for low temperature administration. This standard spreads moved, produced, or strain solidified bars, fasteners, screws, studs, and stud fasteners utilized for weight vessels, valves, ribs, and fittings. Like the ASTM A193 determination, except if generally indicated, the 8UN string arrangement is indicated on clasp bigger than 1" in diameter.

 

GRADES
ASTM A320 Bolts L7 Alloy steel AISI 4140/4142 Quenched and tempered
ASTM A320 Bolts L43 Alloy steel AISI 4340 Quenched and tempered
ASTM A320 Bolts B8 Class 1 Stainless steel AISI 304, carbide solution treated
ASTM A320 Bolts B8M Class 1 Stainless steel AISI 316, carbide solution treated
ASTM A320 Bolts B8 Class 2 Stainless steel AISI 304, carbide solution treated, strain hardened
ASTM A320 Bolts B8M Class 2 Stainless steel AISI 316, carbide solution treated, strain hardened

 

ASTM A320 Bolts Industrial Applications

  • ASTM A320 Bolts uses in Aircraft Exhaust Manifolds
  • ASTM A320 Bolts uses in Off-Shore Oil Drilling Companies
  • ASTM A320 Bolts uses in Power Generation
  • ASTM A320 Bolts uses in Petrochemicals
  • ASTM A320 Bolts uses in Gas Processing
  • ASTM A320 Bolts uses in Specialty Chemicals
  • ASTM A320 Bolts uses in Pharmaceuticals
  • ASTM A320 Bolts uses in Pharmaceutical Equipment
  • ASTM A320 Bolts uses in Spiral Welded tube for burner pipes and flues
  • ASTM A320 Bolts uses in Sea Water Equipment
  • ASTM A320 Bolts uses in Heat Exchangers

 

ASTM A320 Bolts Recommended Hardware And Grades

Grade Nuts Washers
L7 A194 Grade 4 or 7 F436
L43 A194 Grade 4 or 7 F436
B8 Class 1 A194 Grade 8 SS304
B8M Class 1 A194 Grade 8M SS316
B8 Class 2 A194 Grade 8 SS304
B8M Class 2 A194 Grade 8M SS316
Strain hardened nuts available as a supplementary requirement

Chemical Composition

Element Grade L7, L7M Grade L43 Grade B8 Grade B8M Grade B8T Grade B8C
Carbon 0.38 - 0.48 0.38 - 0.43 0.08 max 0.08 max 0.08 max 0.08 max
Manganese, max 0.75 - 1.00 0.75 - 1.00 2.00 max 2.00 2.00 1.00
Phosphorus, max 0.035 0.035 0.045 0.045 0.045 0.040
Sulfur, max 0.040 0.040 0.030 0.030 0.030 0.030
Silicon 0.15 - 0.35 0.15 - 0.35 1.00 max 1.00 1.00 1.00 max
Nickel - 0.40 - 0.70 8.0 - 11.0 10.0 - 14.0 9.0 - 12.0 8.00 - 11.00
Chromium 0.80 - 1.10 0.40 - 0.60 18.0 - 20.0 16.0 - 18.0 17.0 - 19.0 18.0 - 20.0
Molybdenum 0.15 - 0.25 0.20 - 0.30 - 2.0 - 3.0 - -
Titanium - - - - 5 x C, min -

 

Row Materials Description

Grade Raw Material
L7 13% Chromium Ferritic Steel
L7M Chromium Molybdenum Alloy Steel, Quenched & Tempered
L43 Chromium Molybdenum Alloy Steel, Quenched & Tempered
B8 AISI 304 Stainless Steel, Carbide Solution Treated
B8 Class 2 AISI 304 Stainless Steel, Carbide Solution Treated and Strain Hardened
B8M AISI 316 Stainless Steel, Carbide Solution Treated
B8M Class 2 AISI 316 Stainless Steel, Carbide Solution Treated and Strain Hardened
B8T AISI 321 Stainless Steel, Carbide Solution Treated
B8T Class 2 AISI 321 Stainless Steel, Carbide Solution Treated and Strain Hardened
B8C AISI 347 Stainless Steel, Carbide Solution Treated

 

Mechanical Properties

Grade Diameter, in. Tensile Strength, ksi Yield Strength ksi Elongation, % Reduction, % Hardness
B7 2.5 and under 125 105 16 50 321 HBW or 35 HRC
           
           
B7M 4 and under 125 105 16 50 321 HBW or 35 HRC
           
B16 2.5 and under 100 80 18 50 321 HBW or 35 HRC
           
           
B8, B8M, B8C, B8T Class 1 1" and under 75 30 30 50 223 HBW or 96 HRB
B8, B8C, B8T, Class 2 3/4 and under 125 100 12 35 321 HBW or 35 HRC
Over 3/4 to 1, inclusive 115 80 15 30 321 HBW or 35 HRC
Over 1 to 1 1/4", inclusive 105 65 20 35 321 HBW or 35 HRC
Over 1 1/4" to 1 1/2", inclusive 100 50 28 45 321 HBW or 35 HRC
B8M, Class 2 3/4 and under 110 95 15 45 321 HBW or 35 HRC
over 3/4 to 1, inclusive 100 80 20 45 321 HBW or 35 HRC
over 1 to 1 1/4, inclusive 95 65 25 45 321 HBW or 35 HRC
over 1-1/4" to 1-1/2", inclusive 90 50 30 45 321 HBW or 35 HRC

 

ASTM Standards Of ASTM A320 Bolts

L7 Alloy steel AISI 4140/4142 Quenched and tempered
L43 Alloy steel AISI 4340 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

 

Available ASTM A320 Bolts Other Types

  • ASTM A320 Bolts
  • ASTM A320 Bolts Non Ferrous Bolts
  • ASTM A320 Bolts Hex Bolts Stockist
  • ASTM A320 Bolts Hex Head Bolts Supplier
  • ASTM A320 Bolts Square Bolts
  • ASTM A320 Bolts Exporter
  • ASTM SA320 Screws Dealer
  • A320 Hex Cap Screws Exporter
  • ASTM A320 Bolts Studs Supplier
  • ASTM A320 Bolts Socket Head Cap Screws Supplier
  • ASTM A320 Bolts Manufacturer
  • ASTM A320 Bolts Threaded Rods Exporter
  • ASTM A320 Bolts Heavy Hex Bolts Distributor
  • ASTM A320 Bolts Stockholder
  • A320 Hexagon Bolts
  • ASTM A320 Bolts Hex Head Bolts Stockist
  • ASTM A320 Bolts Screws
  • A320 Hexagon Head Screw Manufacturer in India
  • ASTM A320 Bolts Hexagon Head Cap Bolts
  • ASTM A320 Bolts Studs

 

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