ASTM A-193 /194 ASME SA-193 /194 GR 6, B 7, B 7M ,B16 Alloy Steel Fasteners, High Tensile Fasteners, Custom Grade & Size Available At Best Price & Free Sample
Vision Alloys are the leading manufacturer of high integrity Alloy Steel fasteners (e.g. bolts, set screws, stud-bolts, nuts and washers), meeting clients’ exacting demands for critical applications in hostile environments. Whether for offshore (buoyancy and petrochemical), seawater, pump, valve or nuclear, the demands for an exceptional service and supply is never ending. We believe manufacturing bolting in exotic materials is an art form and it is something we have perfected at Vision Alloys.
Our Alloy Steel Fasteners product range includes Alloy Steel Bolts, Hexagon head bolt, Hexagon head screw, Round head square neck bolt, Hexagon socket head cap screw in full thread and half thread, Hexagon wood screw, Hexagon socket button head screw, Hexagon socket button flange screw, Hexagon socket counter sunk head cap screw in full thread and half thread, square nuts, square weld nuts, hexagon weld nuts, thick nyloc nuts, hexagon flange nuts, threaded rods, dowel screws, Plain / Flat Washer, Spring Washers, Countersunk Washer,Tooth Lock Washer and many more. We provide products as per DIN, ANSI, JIS standards.
Vision Alloys is one of the leading Manufacturers, Suppliers & Exporters of high quality Alloy Steel Fasteners in Mumbai, India. We also offer a complete range of Alloy Steel Fasteners such as Bolts, Nuts, Washer, Screw, threaded rod and stainless screws etc. These alloy steel Fasteners are used in various application industry. These are available in different size, specification & thickness as per the clients requirements. We are manufactured in accordance with national and international product standards.If we do not have your Alloy Steel Fasteners in stock (Inch or Metric) we can have these manufactured to your specification.
Material |
Size |
Length |
Specification |
Alloy Steel
|
M02 to M33 |
Upto 5 Meters |
IS BS ASTM |
Material: |
Alloy Steel |
Standard : |
ASTM A193 / A194 , ASME SA193 / SA194 |
Grade: |
B 6, B 7/ B 7M, B 16, 2, 2HM, 2H, GR 6, B 7, B 7M |
Type of Fasteners: |
Bolts : Bolts stud bolts, hex head bolts, socket hexagon head screw anchor bolts, u-bolts, J bolts, mushroom head square neck bolts, t- head bolts, wing screw, eye bolt, eye bolt, foundation bolts and structural bolts Washer : Plain washer , plain big & small OD washer , spring lock washer , spring washer heavy duty , tooth washer , star washer , tab washer with one & two tab Nuts : Hexagon nuts, hexagon coupling nuts, hexagon thin nut, square nut, hexagon castle nuts, self locking nut, hexagon domed cap nuts Screw : Pan head slotted screws, cheese head slotted screws, countersunk head slotted screws, countersunk raised head slotted screws, pan phillipse head screw, countersunk Phillipse raised head screws, slotted cheese trim head machine screws, socket head allen cap screws, allen countersunk socket head cap screws, socket head shoulder screws, socket head cap screw low head, hexagon socket set screw with flat point, hexagon socket set screws with cone point, hexagon socket set screw with dog point, hexagon socket set screws with dog point, hexagon socket set screws with cup point, imprial socket cap screws. Other : Threaded rod, as per drawing and customers spec. coating, hot dipped galvanizing, phosphate, Teflon, xylon, zinc, cadmium.
|
In Form of: |
Hex, Square, Round , Threading as per Gauge Etc. |
We have Our Dealer, distributors & direct sales representatives in below countries who will help you to buy products
INDIA |
SAUDI ARABIA |
UNITED ARAB EMIRATES |
SINGAPORE |
MALAYSIA |
GERMANY |
IRAN |
UNITED KINGDOM |
IITALY |
ISRAEL |
RUSSIA |
UNITED STATES OF AMERICA |
SOUTH AFRICA |
KENYA |
NIGERIA |
PHILLIPINES |
- |
- |
ASTM A193
This specification covers alloy steel and stainless steel bolting material for pressure vessels, valves, flanges, and fittings for high temperature or high pressure service, or other special purpose applications. Ferritic steels shall be properly heat treated as best suits the high temperature characteristics of each grade. Immediately after rolling or forging, the bolting material shall be allowed to cool to a temperature below the cooling transformation range. The chemical composition requirements for each alloy are presented in details.
| B7 | Alloy steel, AISI 4140/4142 quenched and tempered |
|---|---|
| B8 | Class 1 Stainless steel, AISI 304, carbide solution treated. |
| B8M | Class 1 Stainless steel, AISI 316, carbide solution treated. |
| B8 | Class 2 Stainless steel, AISI 304, carbide solution treated, strain hardened |
| B8M | Class 2 Stainless steel, AISI 316, carbide solution treated, strain hardened |
| B16 | A heat-treated chromium-molybdenum-vanadium steel for high-pressure, high-temperature service. |
Bolt -Grade Identification Markings
Grade |
Size |
Tensile ksi, min |
Yield, ksi, min |
Elong, %, min |
RA % min |
|---|---|---|---|---|---|
B7 |
Up to 2-1/2 |
125 |
105 |
16 |
50 |
2-5/8 - 4 |
115 |
95 |
16 |
50 |
|
4-1/8 - 7 |
100 |
75 |
18 |
50 |
|
B8 Class 1 |
All |
75 |
30 |
30 |
50 |
B8M Class 1 |
All |
75 |
30 |
30 |
50 |
B8 Class 2 |
Up to 3/4 |
125 |
100 |
12 |
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 |
|
B8M Class 2 |
Up to 3/4 |
110 |
95 |
15 |
45 |
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 |
Material Chemical Composition
Element |
B7 (AISI 4140) |
B8 (AISI 304) |
B8M (AISI 316) |
|---|---|---|---|
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% |
Recommended Nuts,Bolts & Washer
Bolt Grade |
Nuts |
Washers |
|---|---|---|
B7 |
A194 Grade 2H |
F436 |
B8 Class 1 |
A194 Grade 8 |
SS304 |
B8M Class 1 |
A194 Grade 8M |
SS316 |
B8 Class 2 |
A194 Grade 8 |
SS304 |
B8M Class 2 |
A194 Grade 8M |
SS316 |
