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JF Engineering Products LLP

Astm A193 Grade B8t Bolts

ASTM A193 Grade B8t Bolts, ASTM A193 Gr. B8T Fasteners, ASTM A193 Stud Bolts Manufacturer in India.

ASTM A193 Grade B8T bolts are made using high-quality material, and these bolts are manufactured using superior technology and mechanism. These bolts are commonly used for multiple purposes, and they have high strength and flexibility, which is the most remarkable property that this grade provides. 

ASTM A193 Grade B8T bolts are highly efficient and effective for industrial and commercial uses. The strength of the grade is high, which makes it an ideal application for all kinds of purposes. This grade has great resistance from inter-granular corrosion. 

ASTM A193 Grade B8T bolts are made from an extraordinary alloy combination, including chromium, silicon, nickel, manganese, carbon, phosphorous, etc. The grade has a high heat temperature bearing capacity. The grade includes minimum 17-19%, nickel 9-12%, silicon 1%, Manganese 2%, etc. The inclusion of all these products improves the stability and strength of the grade. 

ASTM A193 Grade B8T bolts provide great resistance from corrosion, crevice corrosion, and stress cracking. The grade also has high tensile and yield strength which increases the durability of the grade. The minimum tensile is 125 Ksi, whereas the yield strength of the grade is 100 Ksi. The ASTM A193 Grade B8T bolts include cryogenic, pressure, and sanitary applications. 

JF Engineering is one of the most astonishing manufacturers, suppliers, and exporters of all metal products. We manufacture these products using high-quality raw materials.

Technical Specification
Stainless Steel Fasteners Standard ASTM A193 Grade B8T
Size M16 - M120
Length UPTO 1200MM
Threads: METRIC, BSW, BSF, UNC, UNF or as required

DIN: DIN 931, DIN 933, DIN 934, DIN 970

UTS – Unified Thread Standard : UNC, UNF, UNEF, UNS, NPT, NPTF

ISO – International Organization for Standardization : ISO 4032, ISO 4033, JIS standards

Packing: canton, pallet, Small Boxs / carton / pallet, or customer request
Chemical Composition
Element Austenitic Stainless Steel
AISI 321 / 321H
CompositionA, %
Carbon 0.08 max
Manganese 2.00
Phosphorus 0.045 max
Sulfur 0.030 max
Silicon 1.00 max
Chromium 17.00 - 19.00
Nickel 9.00 - 12.00
Titanium 5 x Carbon Content - 0.70
Nitrogen 0.10 max
Mechanical Properties
Tensile Class Diameter, Inch Tensile Strength,
min, ksi
Yield Strength,
min, 0.2% offset,
in 4D,
min, %
of Area,
min, %

Class 2A
3/4 and under 125 100 12 35

321 HBW or 35 HRC
over 3/4 to 1 inclusive 115 80 15 35
over 1 to 1-1/4 inclusive 105 65 20 35
over 1-1/4 to 1-1/2 inclusive 100 50 28 50

Marking and Packing

Products are packaged to ensure that there is no damage during transit. In case of exports, standard export packaging is done in wooden cases. All pipes are marked with Grade, Lot No, Size, Degree and our trade mark. On special requests we can also, make custom marking on our products.

Quality Assurance

At JF Engineering Products LLP, all fasteners are subject to strict inspection at each stage of the production process, from starting material purchasing to product dispatch. They are visually examined for conformity to ASTM, ASME, MSS, DIN, EN, and JIS codes and standards. Upon request, official certified Inspection Agencies can be called in to witness the material reports, dimensions and quality conformity of products.

Test Certificates

Manufacturer Test Certificate as per EN 10204 / 3.1B, Raw Materials Certificate, 100% Radiography Test Report, Third Party Inspection Report

Shipping Policy

Delivery time and delivery dates are based on the "type and quantity" of steel ordered. Our sales team will provide a delivery schedule when quoting to you. On rare occasions the delivery schedule may change so please check with our sales department when placing any orders.

Orders will be sent out within 2-3 business days, and may take up to 5-10 business days in transit. If fastener is out of stock, orders may take up to 2-4 weeks to ship. JF Engineering Products LLP will notify buyer if this situation occurs..

Uses & Application

JF Engineering Products LLP take immensure pleasure in introducing itself as one of the leading Manufacturer & Exporter of high quality fasteners to meet the customer ultimate requirements in the fields of:

Chemical Oil Mills Petrochemical Mining Refineries Construction
Fertilizers Shipbuilding Power Plant Steel Plant Nuclear Power Offshore
Oil & Gas Defence Paper Ports Breweries Railway
Cement Engineering Co. Sugar & Government Org. etc.

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