
ASTM A193 Grade B7 Stud Bolts 5/8" to 2" Double End Thread Rod
Other Name:
double end bolt, thread rod, stud bolt, track bolt, rail bolt, railway special bolt , stud rod
Description:
Double end bolts are used to fix the tie plate or other things on the right position through a hole and fastened by nuts and washer at both ends. The diameter and the length of the thread rod are varying according to the requirements of the working environment.
Standard:
DIN, JIS, ISO, ANSI, ASTM, BS, AS
Application:
Railway, Mining, Bridge, Construction and so on
Specifications:
Grade:4.6/4.8/5.6/ 8.8/ 10.9
Dimensions:M20, M22, M24 M25, M27, M28, M30, M32, M40, M50and so on
Brand | ZhongYue | |||
Name | Railway bolt | |||
Type | ASTM A193 Grade B7 Bolt | |||
HEX Bolt | ||||
Or the type by customers’ drawings | ||||
Grade | 4.6 | 5.6 | 8.8 | 10.9 |
Material | Q235 | 35# | 45# | 40Cr |
Mechanical properties | Tensile strength: ≥400Mpa | Tensile strength:≥500Mpa | Tensile strength:≥800Mpa | Tensile strength:≥1000Mpa |
Yield strength:≥240Mpa | Yield strength:≥300Mpa | Yield strength:≥640Mpa | Yield strength:≥900Mpa | |
Elongation:≥22% | Elongation:≥20% | Elongation:≥12% | Elongation:≥9% | |
Cold bending: 90 degree without crack | Cold bending: 90 degree without crack | Cold bending: 90 degree without crack | Cold bending: 90 degree without crack | |
Surface | plain (oiled), Oxide black, Zinc, HDG, wax, bitumen, Dacromet, Sherardizing | |||
Standard refers | ASTM A193 B7 |
Production Procedure
inspect the raw material —— Wiredrawing —— Cutting the wire rod to length —making thread— Heat Treatment —— Surface treatment —— Final inspection —— Packaging —— Shipment
Finish:
No | Surface treatment |
1 | plain oil |
2 | paint by different color |
3 | oxide Black |
4 | Zinc Plating |
5 | Hot Dip Galvanized |
6 | bitumenizing |
7 | wax |
8 | phosphatiert |
Suzhou Zhongyue Railway Material Co.,Ltd.
Founded in 2013, located at No.199 Huanlou Road, development zone Kunshan city, we Suzhou Zhongyue Railway Material Co., Ltd. Is a leading and reputed manufacturer of qualified railway fasteners in China.
We are certified by ISO 9001:2008. We have a complete set of
inspection equipments to strictly control the quality of each
production procedure and make sure all the products reach the
international standards and customers’ requirements.
ZY team is composed of high professional senior engineers,
professional technicians and a group of highly experienced
operation workers, this is the strong guarantee of our products
quality. We have our own R&D team, after-sales service team and
quality-assurance team with the most advance technology and
management concepts.
With advanced technology, comprehensive testing facilities,
excellent management team and powerful processing capacity, our
products have been exported worldwide. After many times of
inspections by BV, SGS,ABS etc, our products have been well
recognized by our customers. We are qualified supplier of
Kazakhstan Railway, Thailand Railway, Zambia Railway, Indonesia
Railway, Malaysia Railway, Sweden Railway, New Zealand Railway,
American Railway, Canada Railway etc, supplying all kinds of
railway material to them for many years without any quality
complaint.
We not only can produce according to International standards,
customers’ drawings and samples, but also can provide design
proposal by our own high standard R&D department.
With the principles of quality first and customers first, ZY Rail
enjoys bulk popularity and high reputation at home and abroad,
while having many customers all over the world. With powerful
strength and broad vision, ZY rail is moving towards
internationalization of enterprises.