Stainless Steel Stud Bolt Dimensions | SS Stud Bolts Manufacturers India

ASTM A193 / A193M Standard Specification for Alloy-Steel and Stainless Steel Bolting Materials for High Temperature or High Pressure Service and Other Special Purpose Applications

ASTM MATERIAL SUMMARY FOR BOLTS

American Society for Testing and Materials (ASTM), Alloy Steel Bolt Materials Specifications:

ASTM A307 Grade B7-Chromium-Molybdenum Steel
ASTM A193 Grade B7M-Reduced tensile strength, hardness controlled to 235 Brinell max.
ASTM A193 Grade B16-vanadium Steel
ASTM A320 Grade L7-Designed for low temperature applications
ASTM A320 Grade L7M-Reduced tensile strength, hardness controlled to 235 Brinell max.
ASTM A193 Grade B8-Chromium-Nickel austnitic steel- 304 Stainless
ASTM A193 Grade B8M- Chromium-Nickel Molybdenum austnitic steel- 316 Stainless

American Society for Testing and Materials (ASTM), Alloy & Carbon Steel Nut Materials Specifications:

ASTM A194 Grade A- Low Carbon, Non-Heat Treat, Heavy Pattern
ASTM A194 Grade C- Recommended use with A325 Structural Bolts, Lock Nut Spec.
ASTM A194 Grade GT- Automation Flange Lock Nut, C1022-1045 SteelGrade 2- Low Carbon, Non- Heat Treat, Finished Pattern
ASTM A194 Grade 2H-Recommended use with A325 Structural Bolts, High Pressure & High Temp.
ASTM A194 Grade 2HM-Grade 5-
ASTM A194 Grade DH- Recommended use with A490 Type 1 Structural Bolts
ASTM Grade DH3- Recommended use with A490 Type 3 Structural BoltsGrade 8-
ASTM A194 Grade F- Large Flange Nut, AISI 1008-1035 steel
ASTM A194 Grade 4-
ASTM A194 Grade L7-ASTM A194 Grade L7M-Stainless Steel-
ASTM A194 Grade 8-Series Stainless Steel, Heavy Pattern 
ASTM A194 Grade 8M- 316 Series Stainless Steel, Heavy Pattern

ASTM A320 / A320M Standard Specification for Alloy-Steel and Stainless Steel Bolting Materials for Low-Temperature Service

MATERIALS-STUDBOLTS ASTM A320

ASTM A320 specification covers alloy steel bolting materials for pressure vessels, valves, flanges, and fittings for low-temperature service. Each alloy shall conform to the prescribed chemical composition requirements. The material, as represented by the tension specimens, shall conform to the requirements as to tensile properties such as tensile strength, yield strength, elongation, and hardness. The material shall meet the prescribed impact energy absorption requirements and the recommended test temperature. According to ASTM A320 mechanical tests shall be conducted on the material, namely: impact testing, tension testing, and hardness testing.
Inside ASTM A320 several grades are covered, including both ferritic and austenitic steels designated L7, B8, etc. Selection will depend on design, service conditions, mechanical properties, and low-temperature characteristics
The values stated in either inch-pound units or SI units are to be regarded separately as standard. Within the text, the SI units are shown in brackets. The values stated in each system are not exact equivalents; therefore, each system must be used independently of the other. Combining values from the two systems may result in nonconformance with the specification. Like the ASTM A193 specification, unless otherwise specified, the 8UN thread series is specified on fastener larger than 1 " in diameter.

Low temperature service 

ASTM A320 L7 Alloy steel, AISI 4140/4142 Quenched and tempered 
ASTM A320 L7M
ASTM A320 L43 Alloy steel, AISI 4340 Quenched and tempered 
ASTM A320 B8 Class 1 Stainless steel, AISI 304, carbide solution treated 
ASTM A320 B8A
ASTM A320 B8T
ASTM A320 B8TA
ASTM A320 B8C
ASTM A320 B8M Class 1 Stainless steel, AISI 316, carbide solution treated 
ASTM A320 B8MA
ASTM A320 B8cl2 Stainless steel, AISI 304, carbide solution treated, strain hardened 
ASTM A320 B8Mcl2 Stainless steel, AISI 316, carbide solution treated, strain hardened 

MATERIALS - HEX NUTS ASTM A194

ASTM A194 pecification covers a variety of carbon, alloy, and martensitic and austenitic stainless steel nuts. These nuts are intended for high-pressure or high-temperature service, or both. Bars from which the nuts are made shall be hot-wrought.
According to ASTM A194 the material may be further processed by centerless grinding or by cold drawing. Austenitic stainless steel may be solution annealed or annealed and strain-hardened. Each alloy shall conform to the chemical composition requirements prescribed. Hardness tests, proof of load tests, and cone proof load tests shall be made to all nuts to meet the requirements specified.
ASTM A194 stated in either inch-pound units or SI units are to be regarded separately as standard. The values stated in each system are not exact equivalents; therefore, each system must be used independently of the other. Combining values from the two systems may result in nonconformance with the specification. Within the text, the SI units are shown in brackets.
ASTM A194 covers size range 1 / 4 " through 4 in. and metric M6 through M100 nominal. It also covers austenitic stainless steel nuts in the size range 1 / 4 " in. and M6 nominal and above.
Unless otherwise specified, the American National Standard Heavy Hex Series (ANSI B 18.2.2) shall be used. Nuts up to and including 1 inch nominal size shall be UNC Series Class2B fit. Nuts over 1 inch nominal size shall be either UNC Series Class 2B fit or 8 UN Series Class 2B fit. High strength ASTM A194 grade 2H nuts are common in the marketplace.

High /Low temperature service 

ASTM A194 2H Quenched & tempered carbon steel heavy hex nuts
ASTM A194 2HM Quenched & tempered carbon steel heavy hex nuts
ASTM A194 4 Quenched & tempered carbon-molybdenum heavy hex nuts
ASTM A194 3
ASTM A194 6
ASTM A194 7 Quenched & tempered alloy steel heavy hex nuts
ASTM A194 7M Quenched & tempered alloy steel heavy hex nuts
ASTM A194 8 Stainless AISI 304 heavy hex nuts
ASTM A194 8A
ASTM A194 8M Stainless AISI 316 heavy hex nuts
ASTM A194 8MA
ASTM A194 8C
ASTM A194 8T

ASTM A453 / A453M Standard Specification for High-Temperature Bolting Materials, with Expansion Coefficients Comparable to Austenitic Stainless Steels

MATERIALS-STUDBOLTS/NUTS ASTM A453

ASTM A453 specification covers standards for Grade 660 (Class A, B, C, and D) , Grade 651 (Class A and B), Grade 662 (Class A and B), and Grade 665 (Class A and B) of bolting materials,with ten classes of yield strength ranging from 50 to 120 ksi [345 to 827 MPa], for use in high-temperature service such as fasteners, for pressure vessels and valve flanges. Bolting materials in ASTM A453 are covered rolled, forged, or hot-extruded bars, and also bolts, nuts, screws, washers, studs, and stud bolts.
Materials shall adhere to specified contents of carbon, manganese, phosphorus, sulfur, silicon, nickel, chromium, molybdenum, tungsten, titanium, columbium, aluminum, vanadium, boron, and copper.According to ASTM A453 materials shall be subjected to tension, stress-rupture, and hardness tests. Materials shall conform to yield strength, tensile strength, elongation, reduction of area, Brinell hardness, and Rockwell hardness requirements. Hardening and solution treatment requirements for each material class are also given.

High Temperature
Resistant alloy

ASTM A453 660A
ASTM A453 660B
ASTM A453 660C
ASTM A453 660D

ASTM A182 / A182M  Standard Specification for Forged or Rolled Alloy and Stainless Steel Pipe Flanges, Forged Fittings, and Valves and Parts for High-Temperature Service

MATERIALS-STUDBOLTS/HEX NUTS ASTM A182

ASTM A182 specification covers forged or rolled alloy and stainless steel pipe flanges, forged fittings, and valves and parts for high-temperature service for use in pressure systems. Included are similar parts to specified dimensions or to dimensional standards, such as the ASME specifications that are referenced in Section Several grades of low alloy steels and ferritic, martensitic, austenitic, and ferritic-austenitic stainless steels are included in this specification. Selection will depend upon design and service requirements. 
In ASTM A182 the values stated in either inch-pound units or SI units are to be regarded separately as the standard. Within the text, the SI units are shown in brackets. The values stated in each system are not exact equivalents; therefore, each system must be used independently of the other. Combining values from the two systems may result in nonconformance with the specification

Duplex/Super duplex

ASTM A182 F51 solution thread and quench
ASTM A182 F44 solution thread and quench
ASTM A182 F53 solution thread and quench
ASTM A182 F55 solution thread and quench