Xylan 1070 A193 B7 Stud Bolt A194 2h Heavy Hex Nut

Product Details
Customization: Available
Material: Carbon Steel
Type: Round Head
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  • Xylan 1070 A193 B7 Stud Bolt A194 2h Heavy Hex Nut
  • Xylan 1070 A193 B7 Stud Bolt A194 2h Heavy Hex Nut
  • Xylan 1070 A193 B7 Stud Bolt A194 2h Heavy Hex Nut
  • Xylan 1070 A193 B7 Stud Bolt A194 2h Heavy Hex Nut
  • Xylan 1070 A193 B7 Stud Bolt A194 2h Heavy Hex Nut
  • Xylan 1070 A193 B7 Stud Bolt A194 2h Heavy Hex Nut
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  • Overview
  • Company Profile
  • Certifications
Overview

Basic Info.

Model NO.
SBN-040
Connection
Common Bolt
Head Style
Round
Standard
DIN, ANSI, GB, JIS, BSW, ASME, ISO, Hg
Grade
8.8
Application
Machinery, Chemical Industry, Environmental, Building, B16.5 Flanges Connection
Finish
Xylan 1070
Surface Treatment
Xylan Coating
Delivery
2-4 Weeks
Thread
Full Thread, Unc, Unf
Length
According to Client′s Requirement
Size Range
M6-M100, 1/4"- 4"
Transport Package
Plywood Cases/Wooden Boxes
Specification
7/8" X 100mm
Trademark
Qishine
Origin
China
HS Code
7318159090

Packaging & Delivery

Package Size
20.00cm * 28.00cm * 12.00cm
Package Gross Weight
12.000kg

Product Description

Company Profile

Xylan 1070 A193 B7 Stud Bolt A194 2h Heavy Hex Nut


Stud Bolt and Nuts

A193 B7 Stud Bolt is a bolt with threads on both ends that designed to be screwed into a fixed part at one end, and to receive a nut on the other end. In Petroleum or Chemical industry, they are prominently used for flange connection, so stud bolt used with two nuts on either side is the most common combination which replaces bolt and nut assembly.
 

Certifications
Xylan 1070 A193 B7 Stud Bolt A194 2h Heavy Hex Nut
Xylan 1070 A193 B7 Stud Bolt A194 2h Heavy Hex Nut

 

As we know that Stud Bolts have many categories, the type for flange connection is called flange stud bolts, which has fully thread with chambered ends. The theoretical length is measured the thread. Continuous threaded stud bolt is very similar to it, except no chambered ends.

Xylan 1070 A193 B7 Stud Bolt A194 2h Heavy Hex Nut

Stud Bolt Materials

The most common materials for stud bolts (for flanges) are ASTM A193 (grade B7, B8, B8M, B8T), ASTM A453 (grade 660), ASTM A320 (grade L7, L7M), and ASTM A182 (duplex and super duplex bolting). For aggressive fluids and environments, stud bolts can be coated with Xylan/PTFE, Zinc and other materials.

 

ASTM A193 Stud Bolts: Chemical Composition

Physical Element ASTM A193 grade B7 (AISI 4140) ASTM A193 grade B8 (AISI 304) ASTM A193 grade B8M (AISI 316)
Carbon 0.38 - 0.48% 0.08% max 0.08% max
Manganese 0.75 - 1.00% 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 0.80 - 1.10% 18.0 - 20.0% 16.0 - 18.0%
Nickel absent 8.0 - 11.0% 10.0 - 14.0%
Molybdenum 0.15 - 0.25% absent 2.00 - 3.00%



ASTM A193 Stud Bolts: Mechanical Properties

ASTM A193 Size Min Tensile Strength (KSI) Min Yield Strength (KSI) Min Elongation (%) RA % min Max HBW Max HRC
ASTM A193 grade B7 Up to 2-1/2 125 105 16 50 321 35
2-5/8 - 4 115 95 16 50
4-1/8 - 7 100 75 18 50
ASTM A193 grade B8 Class 1 All 75 30 30 50 223 35
ASTM A193 grade B8M Class 1 All 75 30 30 50 223 96
ASTM A193 grade B8 Class 2 Up to 3/4 125 100 12 35 321 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
ASTM A193 grade B8M Class 2 Up to 3/4 110 95 15 45 321 35
7/8 - 1 100 80 20 45
1-1/8 - 1-1/4 95 65 25 45
1-3/8 - 1-1/2 90 50 30 45
 

The material chosen for the threaded stud and the hex nuts should be compatible. Materials for bolting sets shall be selected based on the process's working temperatures, as shown in the table below:

  TEMPERATURE °C ( °F )
STUD BOLTS MATERIALS MIN. MAX.
CARBON STEEL -29 (-20) 300 (572)
A193 B7, L7 -73 (-100) 400 (752)
A193 B6 0 (32) 500 (932)
A193 B8 -200 (-325) 575 (1067)
A193 B16 0 (32) 520 (968)
A193 B17B -29 (-20) 650 (1202)
A913 Inconel 718 0 (32) 750 (1382)
A453 Gr. 660 -29 (20) 538 (1000)
 

ASTM A453 Stud Bolts for High-Temp. Service

ASTM A320 Stud Bolts for Low-Temp. Service

 

 Stud Bolts' Coating

Stud bolts can be coated to increase the resistance to corrosion. The most common types of coatings for stud bolts are listed below:

  • Electro zinc plating
  • Electro cadmium plating
  • Hot dip galvanizing
  • PTFE Coating
  • Phosphate coating
  • Electroless nickel plating
  • Zinc-nickel coating
  • Aluminum coating
  • Silver coating
  • Zinc/Nickel by electrodeposition
  • Xylan coating

Xylan 1070 A193 B7 Stud Bolt A194 2h Heavy Hex Nut


 

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