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View SA 193 gr B7 Hex Nut, ASTM A193 B7 Studs And 2h Nuts in India


ASTM A193 is a specification that covers both stainless steel and alloy steel grades. One such grade is B7, which is a molybdenum chromium steel alloy. Stronger than ordinary carbon steel alloys, the main reason for employing ASTM A193 B7 Bolts is in applications where both the use of high pressure and high temperature is common. Unlike carbon steel that has almost no resistance to corrosion, this chromium, and molybdenum containing A193 B7 Material work wonderfully in high temperature environments. Treating them with heat also improves the mechanical properties of the alloy. Mostly, the tensile strength of an ASTM A193 Grade B7 Threaded Rod sees an exponential increase once they have undergone quenching followed by treatment by subsequent tempering. Although like several other grades, these fasteners may be purchased plain or bare any finish. However, some instances call for better properties.

ASTM A193 Grade B7 Bolts
ASTM A193 Grade B7 Bolts
ASME SA 193 B7 2H Hex Nuts
ASME SA 193 B7 2H Hex Nuts
A193 B7 Studs
A193 B7 Studs

Grade B7 Hex Bolts, Check Updated price List of M8 ASTM A193 B7 Fasteners


It is possible to upgrade these properties by treating the surface of the ASTM A193 Grade B7 Stud Bolts using techniques such as plating or even coating with different substrates. For applications that demand higher mechanical properties and superior resistance to corrosion, it is advisable to coat the fasteners with PTFE. Another advantage of using PTFE coated ASTM A193 Gr B7 Bolts is that the rate of friction becomes low. Furthermore, there is an enhancement with regard to the wear resistance properties of the alloy. In comparison to bolts that are not coated, the surface treated ASTM A193 Grade B7 Bolts have the ability to withstand environments where they are subject to elevated temperatures. Constructed with heads that are hexagonal in shape, the B7 Hex Bolts are threaded and short.

 


A193 B7 Material 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%

Types Of ASTM A193 B7 Fasteners

Astm A193 Grade B7 Full Thread Stud Bolts And Nuts For Pipe Flange
Astm A193 Grade B7 Full Thread Stud Bolts And Nuts For Pipe Flange
Alloy Steel Stud Bolt Heavy Duty Black Astm A193 Grade B7 Bolts
Alloy Steel Stud Bolt Heavy Duty Black Astm A193 Grade B7 Bolts
Astm A193 B7 Double Headed Bolt
Astm A193 B7 Double Headed Bolt
Asme B18.2.2 Stud Bolt Astm A193 Gr B7 Bolt And A194 2h Nuts
Asme B18.2.2 Stud Bolt Astm A193 Gr B7 Bolt And A194 2h Nuts
M12 M20 M36 M42 Stud Bolt Astm A193 Gr B7 F436 Washers Thread Bar
M12 M20 M36 M42 Stud Bolt Astm A193 Gr B7 F436 Washers Thread Bar
Astm A193 B7 Stud Bolt High Tensile Double End Threaded Stud Bolts
Astm A193 B7 Stud Bolt High Tensile Double End Threaded Stud Bolts
1/4 Inch Full Thread Stud Bolt Astm A193 Gr B7
1/4 Inch Full Thread Stud Bolt Astm A193 Gr B7
Astm A193 B7 Stud Bolt
Astm A193 B7 Stud Bolt
3/4'' Astm Ansi A193 A490 Carbon Steel B7 B7m Stud Bolt
3/4'' Astm Ansi A193 A490 Carbon Steel B7 B7m Stud Bolt
Astm A193 Gr B7 Stud Bolt M20
Astm A193 Gr B7 Stud Bolt M20
Astm A193 Grade B7 Stud Astm A194 Grade 2h Heavy Hex Nut
Astm A193 Grade B7 Stud Astm A194 Grade 2h Heavy Hex Nut
Din934 Astm A193 B7 Galvanized Stainless Steel Hex Nuts
Din934 Astm A193 B7 Galvanized Stainless Steel Hex Nuts
Astm A193 B7 Washer
Astm A193 B7 Washer

A long established Suppliers of ASTM A193 B7m Materal, SA 193 B7 Stainless steel Bolt Manufacturers in India, Check A193 Gr B7 Stud Bolts Mechanical Properties

B7 Stud Mechanical Properties

Diameter mm Min Tempering Temperature, °C Tensile Strength min, MPa Yield strength, min, 0.2% offset, MPa Elongation in 4D min, % Reduction of Area, min, % Hardness, max
M64 and Under 593 860 720 16 50 321 HBW or 35 HRC
over M64 to M100 593 795 655 16 50 321 HBW or 35 HRC
over M100 to M180 593 690 515 18 50 321 HBW or 35 HRC

Diameter Inch Min Tempering Temperature, °C Tensile Strength min, ksi Yield strength, min, 0.2% offset, ksi Elongation in 4D min, % Reduction of Area, min, % Hardness, max
2.5 and under 1100 125 105 16 50 321 HBW or 35 HRC
over 2.5 to 4 1100 115 95 16 50 321 HBW or 35 HRC
over 4 to 7 1100 100 75 18 50 321 HBW or 35 HRC

ASTM A193 Grade B7 Threaded Rod available in a wide range of grades and shapes, M16*50 B7m Bolts Dimensions, Supplier of B7 Alloy Steel Screws

ASTM A193 B7 Bolt Dimensions

Diameter Chart M4 M5 M6 M8 M10 M12 M14 M16 M18 M20 M22 M24 M27 M30 M33 M36 M39 M42 M45 M48 M52
Pitch Chart 0.7 0.8 1 1.25 1.5 1.75 2 2 2.5 2.5 2.5 3 3 3.5 3.5 4 4 4.5 4.5 5 5

Across Flat (S) Maximum

Min

7 8 10 13 16 18 21 24 27 30 34 36 41 46 50 55 60 65 70 75 80
6.78 7.78 9.78 12.73 15.73 17.73 20.67 23.67 26.16 29.16 33 35 40 45 49 53.8 510.9 63.1 68.1 73.1 78.1

Thickness Chart (M) Maximum

Min

3.2 4.7 5.2 6.8 8.4 10.8 12.8 14.8 15.8 18 19.4 21.5 23.8 25.6 28.7 31 33.4 34 36 38 42
2.9 4.4 4.9 6.44 8.04 10.37 12.1 14.1 15.1 16.9 18.1 20.2 22.5 24.3 27.4 29.4 31.8 32.4 34.4 36.4 40.4
Across corners (E) Minimum 7.66 8.79 11.05 14.38 17.77 20.03 23.35 26.75 29.56 32.95 37.29 39.55 45.2 50.85 55.37 60.79 66.44 71.3 76.95 82.6 88.25
Minor Diameter at thread (minimum) 3.242 4.134 4.917 6.647 8.376 10.106 11.835 13.835 15.294 17.294 19.294 20.752 23.752 26.211 29.211 31.67 34.67 37.129 40.129 42.587 46.587
Minor Diameter at thread (max) 3.422 4.334 5.153 6.912 8.676 10.441 12.210 14.210 15.744 17.774 19.774 21.252 24.252 26.771 29.771 32.27 35.27 37.799 40.799 43.297 47.297

Grade B7 Screw Heat Treatment

Quenched & Tempered at 593º C minimum.

ASTM A193 B7 Bolt Torque Specification

A193 Grade B7 Bolts Size Chart TPI Proof Load (lb) Clamp Load (lb) Tightening (ft lb)
Wax + Galve
Tightening (ft lb)
Galv
Tightening (ft lb)
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

ASTM A193 B7 Nut Stock

ASTM A193 Grand B7 Stud Bolt Stainless Steel B7 Threaded Rod
ASTM A 193 B7 Stud Bolt ASTM A 193 Eye Bolt
Stainless Steel B7 Studs ASTM A 193 B7 Lag Bolt
ASTM A193 B7 Stud Bolts B7 Grub Screw
ASTM A193 J Bolt ASTM A193 B7 Anchor Bolt
B7 Hanger Bolt A193 B7 Hex Nut
SS B7 Plow Bolt ASTM A193 B7 Stud Bolts
ASTM A193 stud bolts SA193 Nuts
ASTM A 193 B7 Studs B7 Shoulder Bolt
B7 Stainless Steel Stud bolts Stainless Steel B7 Draw Bolt
ASTM A 193 Tie Rod SS B7 Step Bolt
ASTM A 193 B7 Heavy Hex Bolts ISO Approved ASTM A193 U Bolts

B7 Bolt Coating

  • Flouropolymer coatings - Xylan and Teflon
  • Molybdenum Disulfide
  • Epoxy Coatings - Thermal cure
  • Phosphate coating - Manganese and Zinc

M12 Customized ASTM A193 B7, A193-B7 Metric Bolts, Certified Materials M12 B7 Nuts and ASTM A193 gr B7 bolts Weight Chart & Standards

ASTM A193 Grade B7 Washer Standards

  • ASTM A193 / A193M – 16 : Standard Specification for High-Temperature Bolting, with Expansion Coefficients Comparable to Austenitic Stainless Steels
  • ASTM A1082 / A1082M – 16 : Standard Specification for High Strength Precipitation Hardening and Duplex Stainless Steel Bolting for Special Purpose Applications
  • ASTM F2281 : Standard Specification for Stainless Steel and Nickel Alloy Bolts, Hex Cap Screws, and Studs, for Heat Resistance and High Temperature Applications Designation
  • ASTM A1014 / A1014M – 16 : Standard Specification for Precipitation-Hardening Bolting (UNS N07718) for High Temperature Service
  • ASTM A962 / A962M – 16a : Standard Specification for Common Requirements for Bolting Intended for Use at Any Temperature from Cryogenic to the Creep Range
  • ASTM A638 / A638M : Standard Specification for Precipitation Hardening Iron Base Superalloy Bars, Forgings, and Forging Stock for High-Temperature Service

SA 193 Gr B7 Material Specification

A193 Grade B7 Bolts Dimensions Standards ASME B18.2.1, B18.3
Threads Configurations of A193 Grade B7 Studs ASME B1.1 2A/3A Inch Unified Threads and B1.13M 6h Metric Coarse Threads
Certification of b7 Threaded Rod Dual Certified As per ASTM & ASME Codes
Additional Certifications Chart PED 97/23/EC Certified, Merkblatt AD 2000 W2 Certified
Mandatory Requirements of A193 Grade B7 Threaded Rod Free from Mercury & Radioactive Contamination
Requirements NACE MR0103 / MR0175 / ISO 15156 Compliance

SA193 B7 Threaded Rod Classes

For Screw & Bolts class A4-80, F593C, F593D, A2-70, A2-80, A4-70, F593G, F593H
For Nuts class A4-80, F594C, F594D, A2-70, A2-80, A4-70, F594G, F594H, A2-035, A4-040
For SHCS class F837C, F837B, F837E, F837
For Threaded Rods class A2-80, A4-70, A4-80, A2-70, F593C, F593D, F593G, F593H, B8, B8M CL1 & CL2

ASTM A193 Grade B7m Bolts Sizes

Bolt Size Chart


Some Of The Major Locations We Have Supplied ASTM A193 grade B7 stud bolts:

STUD BOLT W/2-HEAVY HEX NUT A193-B7/A194-2H Full Threaded UAE, South Africa, Singapore, Bahrain, New Zealand
ASTM A193 Grade B7 Chromium Molybendum steel rod Jakarta -Indonesia, Australia, Nigeria, UK, Philippines
Bolts as per A193 Gr B7 and Hex Nuts as per A 194 Gr. 2H UK, Canada, Poland, Ellington -United States
STUD BOLTS full threaded alloy steel ASTM A193 GR.B7 WITH 2 HEX. NUTS ASTM A.194 GR 2H, hot dipped galvanized Egypt, UK, Spain, Vietnam, Mexico
Alloy STeel Stud Bolt A193 Gr. B7 cw heavy hex nut A194 Gr. 2H Malaysia, Greece, United Kingdom -UK, UAE, Europe
Heavy Hex head Bolt ASTM A193 GRADE B7 UNC Thread, Length 8-1/2 Inch, size 15/16 Malaysia, Romania, Portugal, Europe, Japan
LONG STUD BOLTS ASTM A193 B7, PTFE Coated + ELECTRO PLATE Singapore, France, Thailand, Europe, Qatar
STUD A193 G.B7 ZINC Plated with A194 2H Nut Hong Kong, Argentina, Oman, Malaysia, UAE
AISI 410+STL, Bolts ASTM A193-B7/A194-2H Chile, Singapore, Iran, Austria, Indonesia, Italy
A193 Gr B7 for Studs and A194 Gr 2H Nuts South Africa, Brazil, Kuwait, Saudi Arabia (KSA)
A193 GR B7 W/A194 GR 2H Bolt/ Nuts, Stud Bolt with Hex Nuts, B18.2.1/ B18.2.2 Sweden, Malaysia, China, Vietnam, Peru, Denmark, Colombia
A193 B7 grade Stud Bolt, M20 Czechia, Malaysia, Thailand, Germany
STUDBOLTS ASTM A193 GRADE B7 USA, Hungary, Malaysia, Finland, Bangladesh
ASTM A193 GRADE: B7, and HEX. NUT ASTM A194, GR 2H, TEFOLN COATED Dubai, Philippines, Belgium, Dammam -KSA, Indonesia
A193 Gr. B7 STUD with 2 A194 Gr. 2H Heavy Hex nuts Vietnam, Canada, Singapore, Malaysia, Philippines
ASTM-A193 GR B7 Threaded Bar Malaysia, Jordan, Norway, UAE, Turkey
Long Studs A193 B7, Hh nuts A194 2H, bichromate-treated/ zinc-plated, ASME B18.2.1 Malaysia, Netherlands, Russia, Morocco, Dubai
Hexagon bolts M30 ASTM A193 grade B7 Philippines, Los Alamos -Mexico, Taiwan, Malaysia
M16 Threaded rods B7 ASTM A193 Malaysia, NY 12203 (USA), South Korea, Singapore