ASTM A193 Grade B7 Stud Bolt

• Customization: Available
• Material: Carbon Steel
• Type: Hexagon Head
• Model NO.: StudB7-1
• Connection: Common Bolt
• Standard: DIN, ANSI, GB, JIS, BSW, GOST
• Grade: 10.9
• Application: Machinery, Chemical Industry, Environmental, Building
• Finish: Hot Galvanizing
• Recommended Nut Grade: A194 Grade 2h
• Recommended Washer: F436
• Transport Package: Wooden Pallet
• Specification: 1/4"- 4"
• Trademark: HYZ or customized
• Origin: China
• HS Code: 7318159001
• Production Capacity: 20000 Tons/Year

Product Description

Product Description

ASTM A193 Grade B7/B7M specification covers requirements for high tensile alloy steel bolting material for use with flanges, valves, pressure vessels, and fittings for high temperature and high pressure service.

Product Name	ASTM A193 Threaded Rod B7/B7M
Place of Origin	Hangzhou China
Material	Alloy steel, Carbon steel
Surface treatment	TPEE,Black, Zinc Plated, Zinc (Yellow) Plated, H.D.G. ,Dacromet,etc.
Diameter(inch)	1/4-4
Diameter(mm)	M6-M180
Certificates	FPC,ISO 9001,ISO14001,ISO45001

Chemical Composition

Elements	Range	Product Variation
Carbon	0.37-0.49 % D	0.02 %
Manganese, max	0.65-1.10 %	0.04 %
Phosphorus, max	0.035 %	0.005 % over
Sulfur, max	0.040 %	0.005 % over
Silicon	0.15 - 0.35 %	0.02 %
Chromium	0.75-1.20 %	0.05 %
Molybdenum	0.15-0.25 %	0.02 %

Mechanical Properties-Inch Sizes

Diameter Inch	Min Tempering  Temperature, °F	Tensile Strength  min, ksi	Yield strength, min,  0.2% offset, ksi	Elongation in  4D min, %	Reduction of  Area, min, %	Hardness, max
2.5 and under	1100	125	105	16	50	321 HBW or 35 HRC
over 2.5 to 4	1100	115	95	16	50	321 HBW or 35 HRC
over 4 to 7	1100	100	75	18	50	321 HBW or 35 HRC

Mechanical Properties-Metric Sizes

Diameter mm	Min Tempering  Temperature, °C	Tensile Strength  min, MPa	Yield strength, min,  0.2% offset, MPa	Elongation in  4D min, %	Reduction of  Area, min, %	Hardness, max
M64 and Under	593	860	720	16	50	321 HBW or 35 HRC
over M64 to M100	593	795	655	16	50	321 HBW or 35 HRC
over M100 to M180	593	690	515	18	50	321 HBW or 35 HRC

Recommended Hardware

Nuts	Washers
ASTM A194 Grade 2H	ASTM F436 Type 1

Detailed Photos

 

Certifications

 

 

Packaging & Shipping

Wooden pallet or wooden case

Company Profile

Hangzhou Jiaxiang Gaoqiang Bolts Co., Ltd. is founded in 2007 with registered capital of RMB 30 million and is professionally engaged in manufacturing high-strength bolts with large hexagon heads for steel structures, torsion and shear type high strength bolts and shear studs.

Located in Jinhua Industrial Park, Xiaoshan District, Hangzhou City, our plant covers an area of 22,000 square meters with convenient transportation and beautiful environment. It's two-hour drive to Shanghai and Ningbo Ports. Our company has strong technical force, advanced production equipments and testing equipments.

Our products cover 10.9S-12.9 S-Class. Our leading products of 10.9S high-strength large hexagon bolt pairs, torsion and shear type bolted pairs and welding studs are mainly used for railways, bridges, large industrial plants, high and super high-rise buildings, convention centers, sports stadiums and other large constructions. The annual production capacity is  1,500 million pieces. We are a member of China General Machine Components Industry Association and Shanghai Association of Fastener Industry Association of Metal Structures, and have passed ISO9001:2000 quality system certification.With high-quality products and reasonable prices, we warmly welcome customers to cooperate with us.  

 

Plant & Reception Room
Jiaxiang Bolts with trade mark HYZ is a leading manufacturer for high strength bolts and shear studs. We warmly welcome your visit.
 

Cold Forging & Hot Forging
In either cold or hot, we count with long time experience and wide variety of machinary which enables us  to define the most effective equipments    to produce the requested items in the most efficient way.
 

Heat Treatment
Conveyor and static systems are defined in relation to the type of items to be treated, being always aware of the importance of this process to ensure its correct application.
 

Inspection
Our manufacture follow a flow chart with continuous control through measurements and registers of each stage of the process, that will be expressed in our final quality certification.
 

Storage & Logistics
We have our facilites fully palletized in warehouse to make sure the goods to be delivered in efficient way.   

                

Project Reference

 

FAQ

Q: Are you trading company or manufacturer ?
A: We JIAXIANG BOLTS, founded in 2007, is the leading manufacturer in China for shear connector and high strength bolts.

Q: How long is your delivery time?
A: It we have stock, it takes about 2 days to deliver. If no stock, it takes about 15-20 days to deliver for container(about 20 tons).

Q: Do you provide samples ? Is it free or extra ?
A: Yes, we could offer the sample for free charge, and you are required to afford the freight fee.

Q: Why us?
A: 1)With 16 years of steel structure experience, we always supply high and stable quality products with reasonable price.
2) Unique production process,especially for bottom surface "Slightly curve&Chamfer" on stud.


Q: Do you have Quality Control Department?
A: Yes! Not only for that, our testing center has been granted as National Enterprise Technology Center. All the QC employees are qualified with national certificates. Our forward-looking technology allows to implement the testing requirements which is stricter than national standards.

Q: What is your terms of payment ?
A: Mostly 30% T/T  advance, 70% before shipment.