TORQUE GUIDE FOR ASTM A320 CLASS L7 GRADE M BOLT TENSION BASED ON 40 % YIELD First Pass Second Pass All Subsequent Passes 0.15 30% 60% 100% 3/4 x 10 1-1/4" 0.334 80,000 10,697 73 67 84 94 100 105 134 201 100 30 60 100 7/8 x 9 1-7/16" 0.461 80,000 14,768 117 108 135 151 162 169 215 323 162 48 97 162
SAE Specifi cation: J429 – Mechanical and Quality Requirements for Externally Threaded Fasteners. In addition to the indicated grade marking, all grades, except A563 grades O, A and B, must be marked for manufacturer identification. The markings shown for all grades of A194 nuts are for cold formed and hot forged nuts.
پیچ و مهره استاندارد ASTM A320 L7; پیچ و مهره استاندارد A325; پیچ و مهره استاندارد ASTM A453; ... ASTM A194 Grade 2: C24-C38: 175: 850 °F - 450 °C: 1/4 - 4: ASTM A194 Grade 2H: 159-237: 150: 1150 °F - 620 °C: 1/4 - 4: ASTM A194 Grade 2HM: C24-C38: 175:
The ASTM A320 Gr L7 is a material specification for fasteners, bolts, and nuts. They are intended for use in various high temperature applications. The ASTM A320 Grade L7 Bolts are available in different property classes and each has varied properties, including different stress rupture or tensile properties. They have a wide range of applications, including in …
ASTM A320 Grade L7 is a material specification for bolts, studs, nuts and other fasteners, intended for use in high temperature bolting applications. Boltport Fasteners offers bolts, …
Our ASTM A320 Grade L7 high tensile fasteners offer many excellent features, such as precise design, smooth performance, longer service life, robustness, accurate size, and corrosion-proof. We are offering premium quality ASTM A194 -7 Nuts and Washers in different sizes and dimensions as per our clients' demanded features and specifications.
2 rowsASTM A320 Grade L7 is a standard material specification for alloy steel bolting materials for ...
ASTM A193 A320 Grade B5 B6 B7 B16 B8 B8c B8t B8ca B8m L7 L43 Stud Heavy Hex Hexagon Head Bolt and Nut Cap Screw Hastelloy Incoloy 718 Monel K500 Super Duplex ... ASTM A320 Grade L7 L7m ASTM A193 Gr B16 Stud Bolt and Heavy Hex Nut A194 Gr 2h 2hm Gr 7 . US$ 0.08-0.15 / Piece. 100 Pieces (MOQ)
A320 Grade L7: 4 or 7: A320 Grade L7M: 7M: A320 Grade B8 (Class 1 and 2) 8: A320 Grade B8M (Class 1 and 2) 8M: A320 Grade B8C: 8C: A320 Grade B8T: 8T: A320 Grade B8LN: 8LN: A320 Grade B8MLN: ...
Chromium Molybdenum Alloy Steel. ASTM A320 Grade L7 is a material specification chromium-molybdenum steel, used for manufacturing of bolts, studs, stud bolts and …
ASTM A320/A320M-22 Standard Specification for Alloy-Steel and Stainless Steel Bolting for Low-Temperature Service ... 1.2 Several grades are covered, including both ferritic and austenitic steels designated L7, B8, etc. Selection will depend on design, ... For example, when Grade L43 is specified to meet the Table 2 impact energy values at -150 ...
ASTM A320 possesses several fastener grades manufactured from either alloy or stainless steel and are intended for cold temperature applications. Both Grade L7 and L7M are manufactured from a …
Originally approved in 1948, the ASTM A320 specification covers alloy steel and stainless steel bolting materials for low temperature service. This standard covers rolled, forged, or …
Below is a basic summary of a few of the common grades within the ASTM A320 specification. A number of other less common grades of ASTM A320 exist, but not covered in the description below. 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, …
ASTM A320/A320M-22. ... 1.2 Several grades are covered, including both ferritic and austenitic steels designated L7, B8, etc. Selection will depend on design, ... For example, when Grade L43 is specified to meet the Table 2 impact energy values at −150 °F [−101 °C], additional restrictions ...
ASTM A320/A320M L7 2 1/2 & under 125,000 105,000 C35 Designed for low temperature applications. ... however the material is also required to be impact tested at -150°F. Grade 7L ASTM A320/A320M 2 1/2 & under 100,000 80,000 B99 Designed for low temperature applications. Similar chemical and mechanical properties as the A193 B7M, however the ...
ASTM A320 Grade L7 Stud Bolts IN STOCK. As an ISO9001 manufacturer, Lightning Bolt can make any type of fastener, in any material. Call today 225-272-6200. 1-888-390-BOLT. Search. ABOUT US; ... We stock a large amount of ASTM A320 L7 Stud Bolts up to 2-1/2 inches in diameter.
The most common stud bolts materials under ASTM A320 are listed below (low-temperature service).. ASTM A320 L7.. Alloy steel, AISI 4140/4142 Quenched and tempered; ASTM A320 L7M; ASTM A320 L43.. Alloy steel, AISI 4340 Quenched and tempered; ASTM A320 B8 Class 1.. Stainless steel, AISI 304, carbide solution treated; ASTM A320 B8A; ASTM …
2018. 2. 6. 17:10. 1948 년에 처음 승인 된 ASTM A320 규격은 저온 서비스 용 합금강 및 스테인레스 스틸 볼트 재질을 포함합니다. 이 표준은 압력 용기, 밸브, 플랜지 및 부속품에 사용되는 압연, 단조 또는 변형 경화 바, 볼트, 나사, 스터드 및 …
These are used with pressure valves, pressure vessels, boilers and other application bolts. The ASTM A320 Grade L7 Studs come in four different classes. They can be of Class A, B, C or D. The difference in the class is mainly the tensile strength. The classes A, B and C have 895MPa minimum tensile strength and 585MPa minimum yield strength.
مشخصات ASTM A320 که در اصل در سال 1948 تأیید شد ، مواد پیچ از فولاد آلیاژی و فولاد ضد زنگ را برای استفاده در دمای پایین پوشش می دهد. این استاندارد میله های فولادی رولینگ شده فورج شده کشیده شده در غالب ...
ASTM A320 L7 is manufactured from AISI 4140 base material and is supplied in a quenched and tempered condition. Due to the impact requirements at low temperatures, …
The compatible nut for an L7M bolt, ASTM A194 Grade 7M, also requires hardness test of each part. Machining the Grade 7M nuts after heat treating is prohibited. A320 Grade L7 fasteners require a …
Last previous edition approved in 2011 as A320/A320M–11. DOI: 10.1520/A0320_A0320M-11a. 2 For ASME Boiler and Pressure Vessel Code applications, see related Specifi-cation SA-320 in Section II of that Code. 3 For referenced ASTM standards, visit the ASTM website,, or contact ASTM Customer Service at [email protected]. For …
ASTM A320 Grade L7. ASTM A320 Grade L7 is a material specification chromium-molybdenum steel, used for manufacturing of bolts, studs, stud bolts and other fasteners for bolting pressure vessels, valves, flanges and fittings for various process industries across major industrial sectors in low temperature applications services.
The grade L7M has higher hardness values than the L7 bolts. The ASTM A320 Grade L7 Material has carbon, manganese, phosphorus, sulfur, silicon, 24% nickel, 13% chromium, molybdenum, titanium, aluminum, …
ASTM A320 Specification - Lightning Bolt is a fastener manufacturer that can make any type of fastener out of any material. ... Grade and Class Diameter Heat Treatment Tensile Strength Min KSI ... ASTM A320 GRADES L7, L7M, L70, L7A, L7B, L72, L7C, L73, L43, L1. Identification L7, L7M, L70 L7A, L71 L7B, L72 L7C, L73 L43 L1 ; Grade: Chromium ...
Tempering temperatures for ASTM A193, Grade B7, ASTM A320, Grade L7, and Grade L43, and ASTM A540 Grade B23 shall not exceed 1300oF (700oC). API 20E BSL2 & BSL3 Hardness Requirements The hardness test shall conform to the requirements of ASTM A193, A194, A320 or A540 as applicable except that maximum hardness for Grades B7, …
اما پیچ یک اتصال دهنده است که در یک طرف آن یک مهره سر "توکار" دارد و برای بسته شدن تنها به یک مهره نیاز دارد. ... (برای فلنج ها) astm a193 (درجه b7، b8، b8m، b8t)، astm a453 (درجه 660)، astm a320 (درجه l7، l7m)، و astm a182 (پیچ ...
ASTM A320 L7 STUD BOLTS. IN STOCK. We stock a large amount of ASTM A320 L7 Stud Bolts up to 2-1/2 inches in diameter. Call 225-272-6200 or email us Lightning Bolt …
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