ASTM A320 L7 Stud bolt & A194 Gr.7 Heavy Hex Nuts,xylan coated stud bolts
C&N supply high quality of ESPARRAGOS STUD BOLT A320 Grado L7 w/2 A194 7 NUTS in China ,STUD BOLT A320 Grado L7M w/2 A194 7M NUTS ，PTFE coated ASTM A320 L7 Stud bolt & Heavy Hex Nuts A194 Grade 4/7,Xylan 1070/xylan 1424 coated ASTM A320 Grade L7 Stud bolt & Heavy Hex Nuts
ASTM A320 L7 Stud Bolts are specially designed for LOW temperature performance. These fasteners are commonly used for valves, flanges, fittings, and pressure vessels . ASTM specifications recommend a minimum Charpy impact value for ASTM A320 L7 Stud Bolts to be 20-ft-lbf @ -150F.
(A) Studs
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I. Strength Grades
| DIN 931/933 | Grade 4.6, 4.8, 5.6, 5.8, 8.8, 10.9, 12.9 |
| DIN 931/933 | SUS 304, 316 |
| ASTM A307 | Grade A & B |
| ASTM A320, A320M | Grade L7, L7M, B8, B8M |
| ASTM A325, A325M | Grade 8.8 |
| ASTM A490, A490M | Grade 10.9 |
| ASTM A193/A193M | Grade B7, B7M, B8, B8M, B16 |
ASTM A320 Grade L7 Stud bolts with two ASTM A194 Gr 7 nuts
ASTM A320 Grade L7M Stud bolts with two ASTM A194 Gr 7M nuts
ASTM A320 / A320M
Standard Specification for Alloy-Steel and Stainless Steel Bolting for Low-Temperature Service
ASTM Standards
A194/A194M Specification for Carbon Steel, Alloy Steel, and Stainless Steel Nuts for Bolts for High Pressure or High Temperature Service, or Both
F436/F436M Specification for Hardened Steel Washers Inch and Metric Dimensions
F606/F606MTest Methods for Determining the Mechanical Properties of Externally and Internally Threaded Fasteners, Washers, Direct Tension Indicators, and Rivets
IV. Surface Treatments
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- Plating
- Zinc (White / Yellow / Black)
- Cadmium (White / Yellow / Black)
- Zinc Nickel
- Plating
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- Galvanising
- Hot-Dipped Galvanise
- Mechanical Galvanise
- Galvanising
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- Fluorocarbon Coating
Xylan® / Dupont Coating Systems:- Xylar 2
- Xylan 1070
- Xylan 1424
- Fluorocarbon Coating
- Customised Coating Systems
- Zinc + Fluorocarbon / PTFE coated stud bolt
- Cadmium + Fluorocarbon /PTFE coated stud bolt
- Zinc Nickel + Fluorocarbon /PTFE coated stud bolt
- Zinc Plating + Xylan 1424 Blue PTFE coated stud bolt
- Xylar 2 + Xylan 1070 coated stud bolt
Material Chemical Composition
| Chemical Requirement AISI 4140 4142 4145 |
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HOW to order our A320 L7 STUD BOLT,ASTM A194 Gr 7 HEX NUTS?
EXAMPLE#1,
1-5/8″-370mm STUD BOLT&NUTS, A320/A320M-L7M, FULL-THREAD, 8-UN, ASME B18.2.1/B1.1 CL.2A/ A194/A194M-7M, WITH TWO HEAVY HEX. NUTS, ASME B18.2.2/B1.1 CL.2B, ZINC BASE COAT, FLUOROPOLYMER COATING, C/W TWO METALLIC WASHERS FLAT TYPE
1-1/8″-200mm STUD BOLT&NUTS-CONT, A320/A320M-L7, FULL-THREAD, 8-UN, ASME B18.2.1/B1.1 CL.2A/ A194/A194-7 WITH TWO HEAVY HEX. NUTS, ASME B18.2.2/B1.1 CL.2B,
