HDG High Quality ASTM A193-B7/B7m OEM Fully Threaded Rod for Oil or Gas Projects

Threaded Rods/ Threaded Bars / Stud Bolts  ASTM A193 GR B7,B7M,B8,B8M,B16Threaded Rods ASTM A320 GR L7,L7M,L43Threaded RodsStandard:ASTM A193/A320Size:1/4" - 4", M5 - M100Material: Carbon Steel, Alloy Steel, Stainless SteelGrade:ASTM A193/193M Gr. B7, B7M, B8, B8M, B16ASTM A320/A320M Gr. L

Featured Products

Threaded Rods/ Threaded Bars / Stud Bolts  ASTM A193 GR B7,B7M,B8,B8M,B16
Threaded Rods ASTM A320 GR L7,L7M,L43
Threaded Rods
Standard:ASTM A193/A320
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,  , Zinc-Nickel Alloy
Package:1. In Bundles Then on 900kgs Pallet
2. According to Customers demand (Customized Label & Carton Box)

A193 Chemical Properties

ElementB7 (AISI 4140)B8 (AISI 304)B8M (AISI 316)
Manganese0.75 - 1.00%2.00% max2.00% max
Phosphorus, max0.000350.000450.00045
Sulfur, max0.00040.00030.0003
Silicon0.15 - 0.35%1.00% max1.00% max
Chromium0.80 - 1.10%18.0 - 20.0%16.0 - 18.0%
Nickel 8.0 - 11.0%10.0 - 14.0%
Molybdenum0.15 - 0.25% 2.00 - 3.00%
 

A193 Mechanical Properties

GradeSizeTensile ksi, minYield, ksi, minElong, %, minRA % minHBWHRC
B7Up to 2-1/21251051650321 max35 max
2-5/8 - 4115951650
4-1/8 - 7100751850
B8 Class 1All75303050223 max35 max
B8M Class 1All75303050223 max96 max
B8 Class 2Up to 3/41251001235321 max35 max
7/8 - 1115801535
1-1/8 - 1-1/4105652035
1-3/8 - 1-1/2100502845
B8M Class 2Up to 3/4110951545321 max35 max
7/8 - 1100802045
1-1/8 - 1-1/495652545
1-3/8 - 1-1/290503045

 

A193 Recommended Hardware

Bolt GradeNutsWashers
B7A194 Grade 2HF436
B8 Class 1A194 Grade 8SS304
B8M Class 1A194 Grade 8MSS316
B8 Class 2A194 Grade 8SS304
B8M Class 2A194 Grade 8MSS316
 

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

HDG High Quality ASTM A193-B7/B7m OEM Full Threaded Rods for Oil or Gas Project



 

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