ASTM A320 L7/L7m Stud Bolt Factory

China ASTM A320 L7/L7m Stud Bolt Factory, Find details about China Stud Bolt, Hex Bolts from ASTM A320 L7/L7m Stud Bolt Factory

Application
Machinery, Chemical Industry, Environmental, Building, Oil & Gas Pipe Connection
Finish
Plain Finish, Black Finish, Zinc Plated, HDG
Length
12feet / 3660mm
Trademark
NHZ
Transport Package
in Bundles Around 900kgs Pallet
Specification
1/4"-4", M5-M100
Origin
Ningbo, China
HS Code
7318190000
Application
Machinery, Chemical Industry, Environmental, Building, Oil & Gas Pipe Connection
Finish
Plain Finish, Black Finish, Zinc Plated, HDG
Length
12feet / 3660mm
Trademark
NHZ
Transport Package
in Bundles Around 900kgs Pallet
Specification
1/4"-4", M5-M100
Origin
Ningbo, China
HS Code
7318190000
Threaded Rods ASTM A320 Gr L7/L7m Black Oxide
Threaded Rods
Standard:ASTM A325/A320M
Size:1/4" - 4", M5 - M100
Material: Carbon Steel, Alloy Steel, Stainless Steel
Grade:ASTM A193/193M Gr. B7, B7M, B8, B8M, B16
ASTM A320/A320M Gr. L7, L7M, L43
SAE J429 Gr. 2,5,8
DIN 975/976 Class 4.8, 8.8, 10.9
Thread:M, UNC, 8UN
Finish:Plain, Zinc Plated (Clear/Blue/Yellow/Black), Black Oxide, Nickel, Hot Dip Galvanized,
Mechanical Galvanized, Geomet, Teflon, Zinc-Nickel Alloy
Package:1. In Bundles Then on 900kgs Pallet
2. According to Customers demand (Customized Label & Carton Box)
 

A320 Grades

L7 Alloy steelAISI 4140/4142 Quenched and tempered
L43 Alloy steelAISI 4340 Quenched and tempered
B8 Class 1 Stainless steelAISI 304, carbide solution treated
B8M Class 1 Stainless steelAISI 316, carbide solution treated
B8 Class 2 Stainless steelAISI 304, carbide solution treated, strain hardened
B8M Class 2 Stainless steelAISI 316, carbide solution treated, strain hardened


A320 Mechanical Properties

GradeDiameterTensile, ksi, minYield, ksi, minCharpy Impact 20-ft-lbf @ tempElong, %, minRA, %, min
L7Up to 2 1/2125105-150° F1650
L43Up to 4125105-150° F1650
Class 1: BC, B8C, B8M, B8P, B8F, B8T, B8LN, B8MLNAll7530N/A3050
Class 1A: B8A, B8CA, B8MA, B8PA, B8FA, B8TA, B8LNA, B8MLNAAll7530N/A3050
Class 2: B8, B8C, B8P, B8F, B8TUp to 3/4125100N/A1235
7/8 - 111580N/A1535
1 1/8 - 1 1/410565N/A2035
1 3/8 - 1 1/210050N/A2845
Class 2: B8MUp to 3/411095N/A1545
7/8 - 110080N/A2045
1 1/8 - 1 1/49565N/A2545
1 3/8 - 1 1/29050N/A3045


A320 Chemical Properties

ElementL7 (AISI 4140)L43 (AISI 4340)B8 (AISI 304)B8M (AISI 316)
Carbon0.38 - 0.48%0.38 - 0.43%0.08% max0.08% max
Manganese0.75 - 1.00%0.75 - 1.00%2.00% max2.00% max
Phosphorus, max0.04%0.04%0.05%0.05%
Sulfur, max0.04%0.04%0.03%0.03%
Silicon0.15 - 0.35%0.15 - 0.35%1.00% max1.00% max
Chromium0.80 - 1.10%0.70 - 0.90%18.0 - 20.0%16.0 - 18.0%
Nickel 1.65 - 2.00%8.0 - 11.0%10.0 - 14.0%
Molybdenum0.15 - 0.25%0.20 - 0.30% 2.00 - 3.00%


A320 Recommended Hardware

GradeNutsWashers
L7A194 Grade 4 or 7F436
L43A194 Grade 4 or 7F436
B8 Class 1A194 Grade 8SS304
B8M Class 1A194 Grade 8MSS316
B8 Class 2A194 Grade 8SS304
B8M Class 2A194 Grade 8MSS316

ASTM A320 L7/L7m Stud Bolt Factory

ASTM A320 L7/L7m Stud Bolt Factory
ASTM A320 L7/L7m Stud Bolt Factory
ASTM A320 L7/L7m Stud Bolt Factory
ASTM A320 L7/L7m Stud Bolt Factory
ASTM A320 L7/L7m Stud Bolt Factory
ASTM A320 L7/L7m Stud Bolt Factory
ASTM A320 L7/L7m Stud Bolt Factory