ASTM A320 Grade L7M Bolts

ASTM A320 Grade L7M Heavy Hex Bolts Supplier, ASTM A320 Grade L7M Socket Head Cap Bolts, ASTM A320 Grade L7M U-Bolts Dealer in Mumbai, ASTM A320 Grade L7M 60000 PSI Tensile Strength Bolts Exporter, ASTM A320 Grade L7M Bolts Manufacturer in India.

Boltport Fasteners supplies a wide range of ASTM A320 Grade L7M Bolts, which we procure and offer to our clients’ are made as per the industry standards. Moreover, we have gained appreciation amongst the industry, as we offer a quality tested array of ASTM A320 Grade L7M Alloy Steel Bolts. Thus, our professional team members have immense domain knowledge & expertise to make ASME SA 320 Grade L7M AS Bolts that helps us to achieve great quality standards on quality front. Our ranges of ASTM A320 Grade L7M Alloy Steel Bolts are used in different industries like cement, refineries, steel, etc. For keeping the developed ASME SA 320 Grade L7M AS Bolts in a secure manner, we have maintained a capacious warehousing unit.

ASTM A320 Grade L7M Bolts

ASTM A320 Grade L7M Alloy Steel Eye Bolts

ASTM A320 Grade L7M Alloy Steel Eye Bolts

ASTM A320 Grade L7M AS Structural Bolts

ASTM A320 Grade L7M AS Structural Bolts

ASTM A320 Grade L7M U-Bolts

ASTM A320 Grade L7M U-Bolts

ASTM A320 Grade L7M AS J-Bolts

ASTM A320 Grade L7M AS J-Bolts

ASTM A320 Grade L7M Alloy Steel Shoulder Bolts

ASTM A320 Grade L7M Alloy Steel Shoulder Bolts

ASTM A320 Grade L7M Elevator Bolts

ASTM A320 Grade L7M Elevator Bolts

ASTM A320 Grade L7M AS Anchor Bolt

ASTM A320 Grade L7M AS Anchor Bolt

ASTM A320 Grade L7M Alloy Steel Square Bolts

ASTM A320 Grade L7M Alloy Steel Square Bolts

ASTM A320 Grade L7M Lag Bolts

ASTM A320 Grade L7M Lag Bolts

ASTM A320 Grade L7M Alloy Steel Flange Bolts

ASTM A320 Grade L7M Alloy Steel Bolts

ASTM A320 Grade L7M AS Heavy Hex Bolts

ASTM A320 Grade L7M AS Heavy Hex Bolts

ASTM A320 Grade L7M Carriage Bolts

ASTM A320 Grade L7M Carriage Bolts

ASTM A320 Grade L7M Bolts Specifications

Thread Diameters : M6 to M36
Threads Configuration : ASME B1.1 2A/3A – 2B/3B Inch Unified Threads and B1.13M 6h-6G Metric Coarse Threads
Standard Specification for Alloy-Steel and Stainless Steel Bolting for Low-Temperature Service : The ASTM A320 specification covers alloy steel and stainless steel bolting materials for low temperature service. This standard covers rolled, forged, or strain hardened bars, bolts, screws, studs, and stud bolts used for pressure vessels, valves, flanges, and fittings. Like the ASTM A193 specification, unless otherwise specified, the 8UN thread series is specified on fastener larger than 1” in diameter.

Element L7M (AISI 4140) L43 (AISI 4340) B8 (AISI 304) B8M (AISI 316)
Carbon 0.37 – 0.49% 0.38 – 0.43% 0.08% max 0.08% max
Manganese 0.65 – 1.10% 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 0.75 – 1.20% 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%

Grade Size Tensile, ksi min Yield, ksi, min Charpy Impact Elong, % min RA, %, min
L7M up to 21/2 125 105 -150° F 16 50
L43 sup a 4 125 105 -150° F 16 50
B8 Class 1 all 75 30 N/A 30 50
B8M Class 1 all 75 30 N/A 30 50
B8 Class 2 Up to 3/4 125 100 N/A 12 35
7/8 – 1 115 80 N/A 15 35
11/8 – 11/4 105 65 N/A 20 35
13/8 – 11/2 100 50 N/A 28 45
B8M Class 2 Up to 3/4 110 95 N/A 15 45
7/8 – 1 100 80 N/A 20 45
11/8 – 11/4 95 65 N/A 25 45
13/8 – 11/2 90 50 N/A    

ASTM A320 Grade L7M Heavy Hex Bolts Manufacturer, ASTM A320 Grade L7M Alloy Steel Bolts Exporter, ASTM A320 Hex Bolts, ASTM A320 Grade L7M Structural Bolts Dealer in Mumbai, A320 Grade L7M Bolts Manufacturer in Mumbai.


ASTM A320 Grade L7M Alloy Steel Bolts has a low corrosion rate in rapidly flowing brackish or seawater combined with excellent resistance to stress-corrosion cracking in most freshwaters, and its resistance to a variety of corrosive conditions led to its wide use in marine applications and other non - oxidizing chloride solutions. ASME SA 320 Grade L7M SS Bolts is also used in Effluent scrubbing systems, Marine and other high chloride environments. To meet diversified needs of our esteemed clients all over the world, we are offering a vast range of ASTM A320 Grade L7M Alloy Steel Bolts, which is manufactured according to the market standards by utilizing high quality material & modern techniques.


ASTM A320 Grade L7Molt Application Industry

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