Threaded Rods ASTM A320 B8/B8m Stainless Steel
China Threaded Rods ASTM A320 B8/B8m Stainless Steel, Find details about China Stud Bolt, Threaded Rods from Threaded Rods ASTM A320 B8/B8m Stainless Steel
Basic Info.
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
Product Desciption
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 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 |
A320 Mechanical Properties
| Grade | Diameter | Tensile, ksi, min | Yield, ksi, min | Charpy Impact 20-ft-lbf @ temp | Elong, %, min | RA, %, min |
| L7 | Up to 2 1/2 | 125 | 105 | -150° F | 16 | 50 |
| L43 | Up to 4 | 125 | 105 | -150° F | 16 | 50 |
| Class 1: BC, B8C, B8M, B8P, B8F, B8T, B8LN, B8MLN | All | 75 | 30 | N/A | 30 | 50 |
| Class 1A: B8A, B8CA, B8MA, B8PA, B8FA, B8TA, B8LNA, B8MLNA | All | 75 | 30 | N/A | 30 | 50 |
| Class 2: B8, B8C, B8P, B8F, B8T | Up to 3/4 | 125 | 100 | N/A | 12 | 35 |
| 7/8 - 1 | 115 | 80 | N/A | 15 | 35 | |
| 1 1/8 - 1 1/4 | 105 | 65 | N/A | 20 | 35 | |
| 1 3/8 - 1 1/2 | 100 | 50 | N/A | 28 | 45 | |
| Class 2: B8M | Up to 3/4 | 110 | 95 | N/A | 15 | 45 |
| 7/8 - 1 | 100 | 80 | N/A | 20 | 45 | |
| 1 1/8 - 1 1/4 | 95 | 65 | N/A | 25 | 45 | |
| 1 3/8 - 1 1/2 | 90 | 50 | N/A | 30 | 45 |
A320 Chemical Properties
| Element | L7 (AISI 4140) | L43 (AISI 4340) | B8 (AISI 304) | B8M (AISI 316) |
| Carbon | 0.38 - 0.48% | 0.38 - 0.43% | 0.08% max | 0.08% max |
| Manganese | 0.75 - 1.00% | 0.75 - 1.00% | 2.00% max | 2.00% max |
| Phosphorus, max | 0.04% | 0.04% | 0.05% | 0.05% |
| Sulfur, max | 0.04% | 0.04% | 0.03% | 0.03% |
| Silicon | 0.15 - 0.35% | 0.15 - 0.35% | 1.00% max | 1.00% max |
| Chromium | 0.80 - 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% | |
| Molybdenum | 0.15 - 0.25% | 0.20 - 0.30% | 2.00 - 3.00% |
A320 Recommended Hardware
| 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 |
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