B7-2H Fasteners
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Ratna Exports is a one-stop source for all engineering needs, and we pride ourselves on being one of the leading manufacturers, exporters, and stockers of Various engineering products. Our company regularly supplies engineering, industrial, construction, and other companies.
This fastener is very valuable for assemblies that require high strength. This fastener is corrosive, abrasive, and suitable for extreme environments. These fasteners have machining allowances and tolerance limits to fit every necessary assembly. In addition to resisting stress rupture and creep when subjected to heavy loads, fasteners resist chemical erosion, which is ideal for chemical industries. They are designed to withstand a minimum amount of elongation at high temperatures.
Specifications and Packaging of B7-2H Fasteners Our company uses only high-quality crude materials for making fasteners, and we employ the latest equipment and methods to manufacture them. As a result, they possess excellent surface finishes and excellent dimensional accuracy. Various metal treatment processes are used to make fasteners stronger and more durable. Enhance service period. ASTM, AISI, ASME, DIN, and JS are some standards considered during manufacturing fasteners. Available in standard sizes, length 10 mm to 3000 mm, diameter M2 to M100. Customers can buy different shapes and sizes of these fasteners according to their specific needs.
We test prominent pins using radiography, intergranular corrosion, flaring, flattening, positive material, and third-party inspections. These are also authorized by different international certifications, guaranteeing guaranteed quality. B7-2H Fasteners are packed in wooden boxes, cardboard boxes, or crates for safety. You can get exceptional results for your assemblies at the most affordable prices.
Contact Ratna Exports today for a best offer & competitive quotation Of B7-2H Fasteners
B7-2H Fasteners Specification
Product Name | Hex Bolts |
Material | Stainless Steel: SS201, SS303, SS304, SS316, SS410, SS420 |
Carbon Steel: 4.8, 6.8, 8.8, 10.9, 12.9 | |
Titanium: GR1-GR5 | |
Aluminum, Brass, etc. | |
Size | M1.6-M39 Length: Up to 300mm |
Head Type | Flat, JIS pan, Oval, Round, Binding, I.HD, Brazier, PF. HD, Button, Fillister, Ansi.Pan, Pan washer, Indented Hex, etc. |
Standard | ISO, GB, DIN, JIS, ANSI, BSW, ASME ASME B 18.2.1, IFI149, DIN931, DIN933, DIN558, DIN960, DIN961, DIN558, ISO4014, etc. |
Grade | SAE J429 Gr.2, 5,8; ASTM A307Gr.A, Class 4.8, 5.8, 6.8, 8.8, 10.9, 12.9, etc. |
Certificate | ISO9001:2008, SGS testing report & RoHS |
Screw Drivers | Phillips, Slotted, Square, Crossed, Y-type, T-type, Torx, PZ drives, Hex socket, etc. |
Finishing | Zn- Plated, Ni-plated, Tin-Plated, Radiant Plated, Passivated, Brass plated, Cd- plated, Phosphate Anodize, Cr-plated, Black Oxide, etc. |
Heat Treatment | Tempering, Hardening, Spheroidizing, Stress Relieving, etc. |
Package | General export package, or according to customer’s requirement |
Delivery Time | About 7 -15 days after all details are confirmed and able to offer fast delivery for urgent orders. |
Customer Service | Replacement at all our costs for rejected products if the part does not match with the PO drawings |
types of B7-2H Fasteners
ASTM 193 gr.B7-2H threaded fastener
ASTM 193 GR.B7 2H Full Thread Studs
ASTM 193 GR.B7-2H Fasteners
ASTM A193 gr.B7-2H Heavy Hex Nut Bolts
B7-2H Fasteners Chemical Composition
Element | B7 (AISI 4140) |
Carbon | 0.38 – 0.48% |
Manganese | 0.75 – 1.00% |
Phosphorus, max | 0.035% |
Sulfur, max | 0.040% |
Silicon | 0.15 – 0.35% |
Chromium | 0.80 – 1.10% |
Nickel | |
Molybdenum | 0.15 – 0.25% |
Mechanical Properties of B7-2H Fasteners
Grade | Size | Tensile, KSI, min | Yield, KSI, min | Elong, %, min | RA % min | HBW | HRC |
B7 | Up to 2-1/2 | 125 | 105 | 16 | 50 | 321 max | 35 max |
2-5/8 – 4 | 115 | 95 | 16 | 50 | |||
4-1/8 – 7 | 100 | 75 | 18 | 50 |
Looking to buy B7-2H Fasteners From a manufacturer in India
B7-2H Fasteners Equivalent Grades
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B7-2H Fasteners Torque
A193 Grade B7 Bolts Size | TPI | Proof Load (lbs) | Clamp Load (lbs) | Tightening Torque (ft-lbs) Galv + Wax | Tightening Torque (ft-lbs) Galv | Tightening Torque (ft-lbs) Plain |
1/4″ | 20 | 3,350 | 2,513 | 5 | 13 | 10 |
5/16″ | 18 | 5,500 | 4,125 | 11 | 27 | 21 |
3/8″ | 16 | 8,150 | 6,113 | 19 | 48 | 38 |
7/16″ | 14 | 11,150 | 8,363 | 30 | 76 | 61 |
1/2″ | 13 | 14,900 | 11,175 | 47 | 116 | 93 |
9/16″ | 12 | 19,100 | 14,325 | 67 | 168 | 134 |
5/8″ | 11 | 23,750 | 17,813 | 93 | 232 | 186 |
3/4″ | 10 | 35,050 | 26,288 | 164 | 411 | 329 |
7/8″ | 9 | 48,500 | 36,375 | 265 | 663 | 530 |
1″ | 8 | 63,650 | 47,738 | 398 | 995 | 796 |
B7-2H Fasteners Tensile Strength / Hardness Chart
Grade and Class | Diameter | Tensile Strength Min KSI | Yield Strength 0.2% Offset KSI | Elongation in 4D, Min, % | Reduction of Area Min, % | Hardness Max Brinell | Hardness Max Rockwell |
B7 | to 2-1/2″ | 125 | 105 | 16 | 50 | – | C35 |
over 2-1/2 to 4.” | 115 | 95 | 16 | 50 | – | C35 | |
Classes 1 and 1D: B8, B8M, B8P, B8LN, B8ML | ALL | 75 | 30 | 30 | 50 | 223 | B96 |
Class 1: B8C, B8T | ALL | 75 | 30 | 30 | 50 | 223 | B96 |
Class 1A: B8A, B8CA, B8MA, B8PA, B8TA, B8LNA, B8MLNA, B8NA, B8MNA, B8MLCuNA | ALL | 75 | 30 | 30 | 50 | 192 | B90 |
Classes 1B & 1D: B8N, B8MN, B8MLCuN | ALL | 80 | 35 | 30 | 40 | 223 | B96 |
Class 1C and 1D: B8R | ALL | 100 | 55 | 35 | 55 | 271 | C28 |
Class 1C: B8RA | ALL | 100 | 55 | 35 | 55 | 271 | C28 |
Classes 1C and 1D: B8S | ALL | 95 | 50 | 35 | 55 | 271 | C28 |
Classes 1C: B8SA | ALL | 95 | 50 | 35 | 55 | 271 | C28 |
Class 2: B8, B8C, B8P, B8T, B8N | to 3/4″ | 125 | 100 | 12 | 35 | 321 | C35 |
over 3/4″ to 1.” | 115 | 80 | 15 | 35 | 321 | C35 | |
over 1″ to 1-1/4″ | 105 | 65 | 20 | 45 | 321 | C35 | |
over 1-1/4 to 1-1/2″ incl | 100 | 50 | 28 | 45 | 321 | C35 | |
Class 2 B8M, B8MN, B8MLCuN | to 3/4″ | 110 | 96 | 15 | 45 | 321 | C35 |
over 3/4″ to 1″ | 100 | 80 | 20 | 45 | 321 | C35 | |
over 1″ to 1-1/4″ | 95 | 65 | 25 | 45 | 321 | C35 | |
over 1-1/4 to 1-1/2″ incl | 90 | 50 | 30 | 45 | 321 | C35 | |
Class 2B: B8, B8M2 | to 2″ incl | 95 | 75 | 25 | 40 | 321 | C35 |
over 2″ to 2-1/2″ incl | 90 | 65 | 30 | 40 | 321 | C35 | |
over 2-1/2 ” to 3″ incl | 80 | 55 | 30 | 40 | 321 | C35 | |
Class 2C: B8M3 | to 2″ incl | 85 | 65 | 30 | 60 | 321 | C35 |
over2″ | 85 | 60 | 30 | 60 | 321 | C35 |
Ready Stock Of B7-2H Fasteners
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Applications Industry B7-2H Fasteners
- Pharmaceutical Industry
- Oil Refineries
- Textile Industries
- Nuclear Plants
- Chemical Industries
- Power Plant
- Petrochemicals Industry
- Sugar Industry
- Engineering Industry
- Chemical Industry
- Food Industry
- Marine Industry