Specialist in Manufacturing Industrial Steel Fasteners

ASTM A193 B8T Bolts

Visonalloy is the best supplier and manufacturer for ASTM A193 B8T Bolts. We are a traditional firm who takes care of every precision and uses only modern and effective tools and techniques to make them one among the best bolts over various environments.

ASTM A193 standard specification of steel covers various applications such as pressure vessels, heat-treating components, and valves like others. ASTM A193 B8T Bolts are applicable under high temperature and pressure environments, and also for few special purpose applications. We have a wide-range of collections of these austenitic steel bolts. Some of them are as follows: SS B5, SS B6, SS B7, SS B8, B8M, etc. ASTM A193 B8T Bolts selection is made upon the environment condition, service condition, mechanical properties, and high temperature resistance of the alloy. We offer B8T class 1 AISI 321 Stainless Steel which is carbide solution treated and b8t class 2 AISI 321 SS which is not only carbide solution treated but also strain hardened. The chemical mixture within ASTM A193 B8T Bolts consists of Maganese 1%, phosphorus less than 0.045%, sulphur up to 0,03%, silicon up to 1%, and rest of the 0.65% of molybdenum all maintain the chemical nature of the ASTM A193 B8T Bolts over different environments. Contact us for more.


ASTM A193 B8T Bolts


ASTM A193 B8T Bolts Specification :

GradeStainless Steel ASTM A193 B8T
SpecificationsASTM A193 DIN, ASTM, BS and all International Standards
Length3mm to 200mm
SizeM 02 to M 160, Custom Sizes
FormNuts, Bolts, Washers, Screw
TypesBolts, Nuts, Washers, Anchor Fasteners, Stud Bolts, Eye Bolt, Stud, Threaded Rod, Cotter Pin, Socket Screw, Fine Fasteners & Spares, Foundation Fasteners etc.

Property Class :

For Bolts & Screws: A2-70, A2-80, A4-70, A4-80, F593C, F593D, F593G, F593H

For Nuts: A2-70, A2-80, A4-70, A4-80, F594C, F594D, F594G, F594H, A2-035, A4-040

For SHCS: F837B, F837C, F837E, F837

For Threaded Rods: A2-70, A2-80, A4-70, A4-80, F593C, F593D, F593G, F593H, B8, B8M CL1 & CL2

ASTM A193 B8T Bolts Composition :

Chemical Composition
Typical compositional ranges for grade ASTM A193 B8T Bolts

Element B7 B8 B8M
Carbon 0.37 – 0.49% 0.08% max 0.08% max
Manganese 0.65 – 1.10% 2.00% max 2.00% max
Phosphorus, max 0.035% 0.045% 0.045%
Sulfur, max 0.040% 0.030% 0.030%
Silicon 0.15 – 0.35% 1.00% max 1.00% max
Chromium 0.75 – 1.20% 18.0 – 20.0% 16.0 – 18.0%
Nickel 8.0 – 11.0% 10.0 – 14.0%
Molybdenum 0.15 – 0.25% 2.00 – 3.00%

Mechanical Properties
Typical mechanical properties for grade ASTM A193 B8T Bolts

Grade B8T, Class 2M20 and under8606901235321 HBW or 35 HRC
Grade B8T, Class 2M20 to M24, inclusive6905502045321 HBW or 35 HRC
Grade B8T, Class 2M24 to M30, inclusive6554502545321 HBW or 35 HRC
Grade B8T, Class 2M30 to M36, inclusive6203453045321 HBW or 35 HRC
Grade B8T, Class 1All Diameters5152053050192 HVW or 90 HRB
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