ASTM A193 Grade B7M Bolts

ASTM A193 Grade B7M Bolts

astm-a193-grade-b7m-bolts

ASTM A193 Grade B7M Bolts bolts and studs are identical in chemistry to Grade B7 quenched and tempered medium carbon alloy steel, but have lower strength requirements and require 100% hardness testing of all fasteners manufactured in the lot. Grade B7M bolts resist chloride, sulfide, and hydrogen stress corrosion cracking (SCC) and are frequently used in sour gas service.

ASTM A193 Grade B7M Bolts is a standard material particular for chromium-molybdenum amalgam steel clasp for use in high pliable, high temperature and unique reason applications. Review B7M is a warmth treated chromium-molybdenum composite steel with least tractable prerequisite of 100 ksi, yield of 75 ksi and most extreme hardness of 99 HRB. ASTM A193 detail covers necessities for substance creation, mechanical properties, hardness, warm treatment, prescribed nuts-washrs for Grade B7M clasp. The distinction between B7M is the hardness testing prerequisite for each dash from a given part in the last mentioned.

A193 Grade B7M Bolts are fabricated from AISI 4140/4142 low Carbon Alloy Steel Grades pursued by quencing and treating. We produce these Bolts with incredible accuracy and Quality. These review jolts are likewise signified as Grade 7 Bolts,B7 Bolts and so on. We Also offer B7 Studs/B7 strung bars/B7 Threaded rods.TorqBolt Stocks and Supply these Bolt Fasteners in different sizes and Coatings

 

ASTM A193 B7M Bolts Specification

ASTM A193 B7M Bolt Type ASTM A193 B7M Anchor Bolt, Carriage Bolt, Flange Bolt, 12 Point Bolt, Hex and Hex Flange Bolts, Hex Head Cap Screw, Place Bolt, Socket Head Cap Screws, Hanger Bolt, Hexagon Bolt / Tap Bolt, Lag Bolt, Machine Bolt, Plow Bolt, Shoulder Bolt, Square Head Bolt, Stud Bolt, T-Head Bolt, Toggle Bolt, U-Bolt
Inch #0000 -3" (customized sizes available)
Metric M1.6 - M48
Length Customized Length
Grade Non Ferrous, 12.9, 10.9, 9.8, 8.8, 5.8, 4.6, B7, 2, 5, 8, L9
Material Brass, Bronze / Copper Base Alloy, Copper, Molybdenum, Steel, Hardened Steel, Stainless Steel, Superalloy (Inconel, 718 Bolts, Hastelloy, Monel), Titanium, Exotic Metals, Other
Method Cold forming, Hot Forging, Wire Forming
Fastener Standards ASME / ANSI, BS, DIN, ISO, JIS, SAE, Other
Application Industries & uses Agriculture, Automotive, Construction and Infrastructure, Energy, Transportation
Testing Methods ASTM E38, E76 and E354, ASTM E53, E54, E62, E75and E478, ASTM E34, E101 and E227, ASTM E 120 and E1409.
Threads Configuration ASME B1.1 2A/3A – 2B/3B Inch Unified Threads and B1.13M 6h-6G Metric Coarse Threads
Thread Diameters M6 to M36
Certification Dual Certified As per ASTM & ASME Codes

 

ASTM Standards Of ASTM A193 B7M Bolts

ASTM A193 B7M Alloy steel, AISI 4140/4142 quenched and tempered
ASTM A193 B8 Class 1 Stainless steel, AISI 304, carbide solution treated.
ASTM A193 B8M Class 1 Stainless steel, AISI 316, carbide solution treated.
ASTM A193 B8 Class 2 Stainless steel, AISI 304, carbide solution treated, strain hardened
ASTM A193 B8M Class 2 Stainless steel, AISI 316, carbide solution treated, strain hardened

 

ASTM A193 B7M Bolts Characteristics

Grade Description Diameter Tensile Strength, min. Yield Strength, min. Hardness, max. Marking
ASTM A193 B7M Chromium-Molybdenum 2 1/2” and under 125 105 321 HB or 35 HRC B7
over 2 1/2” to 4” 115 95 321 HB or 35 HRC
over 4” to 7” 100 75 321 HB or 35 HRC
ASTM A193 B8 class 1 S30400 (304) all 75 30 223 HB or 96 HRB B8
ASTM A193 B7 B8 class 2 S30400 (304) 3/4” and under 125 100 321 HB or 35 HRC B8SH
over 3/4” to 1” 115 80 321 HB or 35 HRC
over 1” to 1 1/4” 105 65 321 HB or 35 HRC
over 1 1/4” to 1 1/2” 100 50 321 HB or 35 HRC
ASTM A193 B8M class 1 S31600 (316) all 75 30 223 HB or 96 HRB B8M
ASTM A193 B8M class 2 S31600 (316) 3/4” and under 110 95 321 HB or 35 HRC B8MSH
over 3/4” to 1” 100 80 321 HB or 35 HRC
over 1” to 1 1/4” 95 65 321 HB or 35 HRC
over 1 1/4” to 1 1/2” 90 50 321 HB or 35 HRC

 

Chemical Composition

Carbon Manganese, max Phosphorus, max Sulfur, max Silicon Chromium Molybdenum
0.37 - 0.49 0.65 - 1.10 0.035 0.040 0.15-0.35 0.75-1.20 0.15-0.25

 

Raw Material Description

Grade Raw Material Description
B7M Chromium Molybdenum Alloy Steel, Quenched & Tempered

 

Mechanical Properties

Grade Diameter Tensile ksi, min Yield, ksi, min Elong, %, min RA % min HBW HRC
B7 Up to 4 100 80 18 50 235 max -
Over 4 - 7 100 75 18 50

 

Mechanical Properties

Grade Diameter Tensile Strength Yield Strength Elongation Reduction Hardness
Grade B7M M100 and under 690 550 18 50 235 HBW or 99 HRB
Grade B7M M100 and over 690 515 18 50 235 HBW or 99 HRB

 

Available ASTM A193 B7M Bolts Other Types

  • ASTM A193 B7M Bolts
  • ASTM A193 B7M Non Ferrous Bolts>
  • ASTM A193 B7M Hex Bolts Stockist
  • A193 B7 Hexagon Bolts
  • ASTM A193 B7 Square Bolts
  • ASTM A193 B7M Bolts Exporter
  • ASTM SA193 B7 Screws Dealer
  • A193 B7 Hex Cap Screws Exporter
  • ASTM A193 B7 Studs Supplier
  • ASTM A193 B7 Studs
  • ASTM A193 B7M Bolts Manufacturer
  • ASTM A193 B7M Threaded Rods Exporter
  • ASTM A193 B7 Heavy Hex Bolts Distributor
  • ASTM A193 B7 Bolts Stockholder
  • ASTM A193 B7 Hex Head Bolts Supplier
  • ASTM A193 B7 Hex Head Bolts Stockist
  • ASTM A193 B7M Screws
  • A193 B7 Hexagon Head Screw Manufacturer in India
  • ASTM A193 B7 Hexagon Head Cap Bolts
  • ASTM A193 B7 Socket Head Cap Screws Supplier

 

ASTM A193 B7M Bolts Industrial Applications

»  ASTM A193 B7 Bolts uses in Aircraft Exhaust Manifolds
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»  ASTM A193 B7 Bolts uses in Power Generation
»  ASTM A193 B7 Bolts uses in Petrochemicals
»  ASTM A193 B7 Bolts uses in Gas Processing
»  ASTM A193 B7 Bolts uses in Specialty Chemicals
»  ASTM A193 B7 Bolts uses in Pharmaceuticals
»  ASTM A193 B7 Bolts uses in Pharmaceutical Equipment
»  ASTM A193 B7 Bolts uses in Spiral Welded tube for burner pipes and flues
»  ASTM A193 B7 Bolts uses in Sea Water Equipment
»  ASTM A193 B7 Bolts uses in Heat Exchangers

 

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ASTM A193 Grade B7M Bolts
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