A193 B8
Overview
Product sourcing insights & recommendations
ASTM A193 B8 refers to a high-performance 304 stainless steel bolting specification used in extreme high-pressure and high-temperature environments PortlandboltSsmalloys. The primary market distinction lies between Class 1 (annealed) and Class 2 (strain hardened), with the latter offering significantly higher tensile strength for critical infrastructure PortlandboltPortlandbolt.
The market for these fasteners is projected to reach $26.4 billion by 2034, with 2026 trends focusing on digital traceability, sustainable manufacturing, and a shift toward regional supply chain nearshoring to improve resilience BgmfgDataintelo.
I have prepared a detailed market analysis report and a product sourcing list below, covering technical specifications, strategic market drivers, and current B2B availability.
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Astm A193 B8 Bolts Stainless Steel 304 Fasteners
Products · Top picks & verified manufacturers
Factory Stainless Steel 304 Hex Bolts Grade 8.8 Hot Dip Galvanized ASTM A325 Structural Hex Bolt Black Heavy Hex Bolts
Shanghai Oriental Import & Export Co., Ltd.🇨🇳CN18 yrs
ASTM A193 B8/B16 Stud Bolt Thread Rod Plain 304 Stainless Steel DIN976 Standard M8 Thread Hex Bolt Type
Shanghai Greentea International Group🇨🇳CN5 yrs
Carbide Solution Stainless Steel Extra Wide Hex Head Screw ASTM A193 Grade B8 Heavy Hex Bolt
Shanghai Goldea International Group🇨🇳CN3 yrs
M6 M8 M10 ASTM A193 A914 B8 B8M B8T ASTM A453 GR660 A286 18-8 Stainless Steel FH FHS FHA Flat Head Self Clinching Stud Bolt
Sino-Shanghai Hangzhou Manufacturingverified🇨🇳CN9 yrsASTM A193 B8/B16 Stud Bolt Thread Rod Plain 304 Stainless Steel DIN976 Standard M8 Thread Hex Bolt Type
Shanghai Anxi International Groupverified🇨🇳CN6 yrs
ASTM A193 B8/B16 Stud Bolt Thread Rod Plain 304 Stainless Steel DIN976 Standard M8 Thread Hex Bolt Type
Yunnan Shanghai Industries Co., Ltd.🇨🇳CN6 yrs
18-8 Stainless Steel INOX A193 A914 B8 N8M B8T A453 GR660 A286 ASTM AISI ANSI SUS SS 304 316 316L A2 A4 70 80 Step Bolt ISO7379
Anxi Shanghai Industries Co., Ltd.🇨🇳CN1 yrASTM A193 B8/B16 Stud Bolt Thread Rod Plain 304 Stainless Steel DIN976 Standard M8 Thread Hex Bolt Type
Shanghai Hangzhou Trade Co., Limited🇨🇳CN1 yr
ASTM A193/A194 A320 L7 A193 B7 B8 B16 B16M Din 938 S32760 C276 904l Stainless Steel Black Double End Insert Bolt Stud Bolts
Shanghai Anxi Trade Co., Limited🇨🇳CN13 yrs
High Strength ASME/ANSI B 18.2.1 Astm A325 A193 B8 1/2'' 2'' Stainless Steel Heavy Hex Bolts and Nut
Shanghai Goldea Trade Co., Limitedverified🇨🇳CN20 yrs
A193 B8M Class 1 Stainless Steel Flange Bolt DIN6921 Standard Plain Finish 1" X 5" SOKUN Brand
Shanghai Fujian Import & Export Co., Ltd.verified🇨🇳CN17 yrs
ASTM A193 B8 Standard Stainless Steel Double-Ended Bolts Equal Length Double-Stud Wall Screws
Yunnan Shanghai Industries Co., Ltd.🇨🇳CN2 yrs
Corrosion Resistant Hex Head Cap Bolt ASME ANSI B18.2.1 A193.B8M 316SS Hexagon Bolt
Shanghai Fujian Import & Export Co., Ltd.verified🇨🇳CN4 yrs
Heavy Hex Bolt B8m Class A194 8c and Nut Gr Bolts A193b8m Heavy Stud Classe 2 A193 B8
Shanghai Anxi Trade Co., Limitedverified🇨🇳CN3 yrs
High Strength ASTM B7 B7M B8 B8M Stainless Steel Stud Bolts C/w 2 Heavy Hex Nuts
Shanghai Goldea Import & Export Co., Ltd.🇨🇳CN19 yrs
HS Stainless Steel B8 ASTM A320 Fully Threaded Stud Bolt with Plain Washer and Hevy Nut for Industry Applications (Metric)
A193 B8 Pick #17 (165906)
A193 B8 Pick #18 (722637)
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Sources & References
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ASTM A193
Portland Bolt
B8, Class 1 Stainless steel, AISI 304, carbide solution treated. B8M, Class 1 Stainless steel, AISI 316, carbide solution treated. B8, Class 2 ...
ASTM A193 B8 vs B8M: Class 1 and Class 2 Differences ...
ssmalloys.com
ASTM A193 is a standard specification for alloy steel and stainless steel bolting materials intended for high-temperature or high-pressure ...
ASTM A193 Grade B8 Class 2 Stud Bolts
Lightning Bolt & Supply
ASTM A193 Grade B8 Class 2 Stud Bolts are considered nearly identical to grade 18/8 & 304 stainless steel, however they are also strain hardened.
ASTM A193 Grade B8 Class 2 - Boltport Fasteners
a193gradeb8.com
ASTM A193 Grade B8 Class 2 is a carbide solution treated and strain hardened 304/304L stainless steel bolting material with higher tensile strength requirement ...
ASTM A193 Grade B7 vs. B8 - SSM
ssmalloys.com
Both ASTM A193 Grade B7 and Grade B8 are high-performance bolting materials used in high-temperature/high-pressure environments, ...
Grades - ASTM A193
a193bolts.com
A193 Grade B8 Class 2 bolts are strain hardened after carbide solution treatment to achieve increased strength characteristics and reduce the potential for ...