Company Details
Shijiazhuang Bang dong Pipeline Technology Co,Ltd.
Payment Type: | L/C,T/T |
---|---|
Incoterm: | FOB,CFR,CIF |
Min. Order: | 10 Piece/Pieces |
Model No.: A193
Brand: Bangdong
Type: Hexagon Head
Material: Stainless Steel
Application: Machinery
Finish: Polishing
Standard: DIN, GOST, JIS, GB, ANSI
Connection: Hinged Bolts
Grade: B8
Packaging: Wooden Cases or Pallet
Productivity: 10000pcs/momth
Transportation: Ocean,Land,Air
Place of Origin: Cangzhou,China
Supply Ability: 10000pcs/month
Certificate: ISO/CE/API
HS Code: 73079300
Port: Tianijin New Port,Beijing Air Port,Cangzhou Train Station
Payment Type: L/C,T/T
Incoterm: FOB,CFR,CIF
Scope
ASTM A193 is the standard specification for alloy-steel and stainless steel bolts used in high-temperature or high-pressure environments or other special-purpose applications. ASTM A194 is the standard specification for carbon and alloy steel nuts for bolts used in equivalent high-pressure or high-temperature environments. ASTM A193 and A194 bolts and nuts from Glaser and Associates are available in a range of grades, including B7, B16 B8 and B8M to meet different design, service conditions, mechanical properties, and high temperature requirements. ASTM A194 also covers the American Association State Highway and Transportation Officials Standard AASHTO M-292.
These bolts and nuts are designed, manufactured and tested to comply with the standards set by ASTM A193 and A194 for chemical composition, tensile and hardness properties and high temperature characteristics.
Grades
Grade | Material |
B7 | Alloy steel, AISI 4140/4142 quenched and tempered |
B16 | Alloy steel, Chromium-molybdenum-vanadium heat treated |
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 |
B7, B8 and B8M are the most commonly used grades. The properties tables below provide more information on the differences between the grades.
Applications
The high-temperature, high-pressure performance of these bolts and nuts make them suitable for applications in process industries, such as petroleum and chemicals where they are widely used in pressure vessels, valves, flanges, and fittings.
Properties
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 | |
| Up to 2-1/2 | 125 | 105 | 18 | 50 |
B16 | 2-5/8 - 4 | 110 | 95 | 17 | 45 |
| 4-1/8 - 7 | 100 | 85 | 16 | 45 |
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 |
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% |
Our Quality Program is ISO 9001:2008 certified and we can provide 100% domestic A193 B7 studs with full Material Test Reports (MTR`s) and plating certifications; plus requests for DFARS approved countries of origin; or requests for [no China" material. We also offer imports for competitive pricing.
We stock all of the associated hardware including A194 2H heavy hex nuts; F-436 flat washers and lock washers in the assorted finishes. We can assemble the nuts and washers if desired, or pack the order to your Customer`s specification.
WE CAN PROVIDE IN FOLLOWING MATERIAL & GRADE.
MATERIAL GRADE
Stainless steel 304 nuts & bolts 304 , 304L
Stainless steel 316 fasteners, nuts & bolts ( Marine grade ) 316 , 316L , 316Ti , 316S31 , 316S33
ASTM Grade heavy hex nuts & bolts ASTM A193 B8 , B8M , B8T , B8C , B6
We have below Bolts & Nuts :
Fasteners Stud Bolt
Stud Bolts
Heavy Nuts
Stud Bolts With 2 Nuts
Hex Bolts
Product Categories : Bolts & Nuts > Stud Bolt