Stainless Steel A193 Grade B8 Hex Bolt is a specific type of fastener made from stainless steel that conforms to the ASTM A193 standard, specifically Grade B8. This grade of stainless steel is commonly used in various industrial and construction applications due to its excellent mechanical properties and corrosion resistance. Here are some key features, applications, and information on its corrosion resistance:


Features:

  • Stainless Steel Composition: Grade B8 stainless steel is primarily composed of chromium (Cr) and nickel (Ni), making it an austenitic stainless steel alloy. The specific composition typically includes around 18-20% chromium and 8-11% nickel.
  • High Strength: Grade B8 stainless steel offers good tensile strength and is suitable for applications where mechanical strength is a critical requirement.
  • Corrosion Resistance: This stainless steel grade is highly resistant to corrosion, especially in environments where exposure to moisture, chemicals, or corrosive substances is a concern.
  • Hexagonal Head: Hex bolts have a hexagonal (six-sided) head, which allows for easy installation with a wrench or socket. The hex head design provides a secure and reliable connection.


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Stainless Steel A193 Grade B8 Hex Bolts
  • Standards

    ASTM

  • Designation

    A193 B8: Class 1 Stainless Steel, AISI 304

  • Dimensions

    ASME B18.2.1, B18.3

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A193 Gr B8 Stainless Steel Hex Shoulder Bolt, SS A193 Gr B8 Hexagonal Bolt, Stainless Steel A193 Gr B8 Heavy Hex Head Bolt Stockist, SS A193 Grade B8 Hex Bolt Manufacturers, Stainless Steel A193 Grade B8 Hex Bolt Suppliers.


Applications: Stainless Steel A193 Grade B8 Hex Bolts find application in various industries and scenarios, including:

  • Construction: Used in structural applications, such as building and bridge construction, where strong and corrosion-resistant fasteners are required.
  • Petrochemical Industry: Commonly used in the installation and maintenance of pipelines and equipment in corrosive environments.
  • Marine and Offshore: Due to its resistance to saltwater and corrosion, Grade B8 stainless steel hex bolts are used in marine and offshore structures.
  • Food Processing: Suitable for equipment and machinery used in food processing facilities where sanitation and corrosion resistance are essential.
  • Chemical Processing: Utilized in chemical plants and facilities where exposure to corrosive chemicals is prevalent.


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fevicon-logo SS A193 Grade B8 Hex Bolts Specification

SpecificationsASTM A193 / ASME SA193
StandardISO, ASTM, DIN, JIS, IS, GB, BS, and all International Standards
SizeM3 - M100 | 3/6″ - 4″ | Custom Sizes
Length 3 mm - 200 mm | Custom Sizes
DIN StandardB.S. DIN 931, DIN 933, DIN 912, DIN 934, DIN 6923, DIN 603, DIN 7981, DIN 970, DIN916, DIN 7982, DIN 7985, DIN 913
UTS NPT, UNS, UNF, UNC, UNEF, NPTF
ISO ISO 4033, ISO 4032, ISO 7380, ISO 4017, JIS standards
Threads UNF, BSW, BSF, METRIC, UNC, or as required
Surface CoatingBlack Oxide, Cadmium, Galvanized, Teflon, Xylan, Zinc, Others Upon Request
Manufacturing ProcessWire Drawing, Cold Heading, Insert tapping, Heat Treatment, Surface Plating, Inspection, Packing.

Corrosion Resistance: Stainless Steel A193 Grade B8 is known for its exceptional corrosion resistance, which is attributed to its chromium content. The chromium forms a passive oxide layer on the surface of the steel, protecting it from oxidation and corrosion. This passive layer is self-healing, meaning that if it is scratched or damaged, it will naturally reform when exposed to oxygen.


The level of corrosion resistance depends on factors like the specific environment and the presence of corrosive substances. In most cases, Grade B8 stainless steel provides excellent protection against rust and corrosion in various conditions.


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fevicon-logo Chemical Composition of Stainless Steel A193 Gr B8 Hex Bolts

ASTM A193
Grade B8
A193
Grade B8T
Percentage % %
C. 0.08 max. 0.08 max.
Mn. 2.00 max. 2.00 max.
Si. 1.00 max. 1.00 max.
P. 0.045 max. 0.045 max.
S. 0.030 max. 0.030 max.
Cr. 18.00---20.00 17.00---9.00
Ni. 8.00---10.50 9.00---12.00
Mo. --- ---
V. --- ---
Ti. --- 5xCMIN
Brinell Hardness 223 B.H.N.
max.
223 B.H.N.
max.
Impact Value Not
applicable
Not
applicable

fevicon-logo Mechanical Properties of SS ASTM A193 Hex Bolts

Grade Size Tensile ksi, min Yield, ksi, min Elong, %, min RA % min
B8 Class 1 All 75 30 30 50
B8 Class 2 Up to 3/4 125 100 12 35
7/8 - 1 115 80 15 35
1-1/8 - 1-1/4 105 65 20 35
1-3/8 - 1-1/2 100 50 28 45

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fevicon-logo Types of Stainless Steel ASTM A193 Grade B8 Hex Bolts

Hex Bolt

SS A193 Hex Bolt

Heavy Hex Bolt

SS Grade B8 Heavy Hex Bolt

Hex Tap Bolt

SS A193 Grade B8 Hex Tap Bolt

Hex Flange Bolt

SS A193 Gr B8 Hex Flange Bolt

Half Threaded Hex Bolt

SS ASTM A193 Half Threaded Hex Bolt

Fully Threaded Hex Bolt

Grade B8 SS Fully Threaded Hex Bolt

Hex Machine Bolt

SS A193 Gr B8 Hex Machine Bolt

Hex Shoulder Bolt

SS Grade B8 Hex Shoulder Bolt


Hex Bolt Manufacturers In India

  • Hardness testing to ISO 6508-1

  • Nut proof load testing to ISO 898-2

  • Suitability for preloading to EN 14399-2

  • Calibrated gauges and tools


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fevicon-logo Stainless Steel A193 Gr B8 Hex Bolts Application Industries

Aerospace Industry
Nuclear Industry
MEdical Industry
Marine Industry
Mining Industry
Automotive Industry
Construction Industry
Manufacturing Industry
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