T-bolts
- T/T L/C D/P D/A
- 7 days
You May Like
Product Details
Place of Origin | China | |
Model Number | all |
Product Description
Product description
Being a professional railway parts company, we can offer products in different models with any grade.
The technical requirements of different grades are as following:
Grade description (technical requirements) of ASTM
1. AREA 4-1.4 in 1991 class 2 (ASTM 1183 Class2)
①Tensile strength (PSI)≥760MPa
②Yield strength≥552MPa
③Elongation2"≥12%
④Reduction of cross section≥25%
⑤Requirements of cold blending: 45°, no cracking. Diameter of blending core= diameter of screw
⑥Raw material: 35#, 45#, 20MnTiB, etc
2. AREA 1991 standard Strength Grade:SAE J429 Class 5
①1/4"~1" Tensile strength (PSI)≥828Mpa, Yield strength≥635MPa;
②>1"~1-1/2" Tensile strength (PSI)≥725Mpa, Yield strength≥559MPa;
③Elongation2"≥14%
④Reduction of cross section≥35%
⑤Requirements of cold blending: 45°, no cracking.
Diameter of blending core= diameter of screw
⑥Surface hardness: HRC: size of 1/4~1"≤34; size of >1"~1-1/2"≤30;
⑦Core hardness: HRC: size of 1/4~1": 25~34; size of >1"~1-1/2"≤30
(no requirements with the minimum hardness when examination);
⑧Raw material: 45#, 20MnTiB, 40Cr, etc
3. AREA 1991 standard Strength Grade:SAE J429 Class 8
①Tensile strength (PSI)≥1035.2MPa
②Yield strength≥897.2MPa
③Elongation2"≥12%
④Reduction of cross section≥35%
⑤Requirements of cold blending: 45°no cracking.
Diameter of blending core= diameter of screw
⑥Surface hardness: HRC:≤39;
⑦Core hardness: HRC: 33~39;
(no requirements with the minimum hardness when examination);
⑧Raw material: 45#, 35CrMo, 42CrMo, etc
Grade description (technical requirements) of GB, DIN, ISO
1. Grade: Class 4.6
① Raw material: Q235, Q275, 20#
② Mechanical capacity:
Tensile strength (PSI)≥400MPa
Yield strength≥240MPa
Elongation≥22%
Brinell Hardness HB114-209
2. Grade: Class 4.8
① Raw material: Q235, Q275
② Mechanical capacity:
Tensile strength (PSI)≥420MPa
Yield strength≥340MPa
Brinell Hardness HB124-209
3. Grade: Class 5.6
① Raw material: 35# Q345B(16Mn)
② Mechanical capacity:
Tensile strength (PSI)≥500MPa
Yield strength≥300MPa
Elongation≥20%
Brinell Hardness HB147-209
4. Grade: Class 5.8
① Raw material: 35#, 45#
② Mechanical capacity:
Tensile strength (PSI)≥520MPa
Yield strength≥420MPa
Brinell Hardness HB151-209
5. Grade: Class 6.8
① Raw material: 45#
② Mechanical capacity:
Tensile strength (PSI)≥600MPa
Yield strength≥480MPa
Brinell Hardness HB181-238
6. Grade: Class 8.8
① Raw material: 45# 40Cr 20MnTiB
② Mechanical capacity:
A) Diameter≤16
Tensile strength (PSI)≥800MPa
Yield strength≥640MPa
Elongation≥12%
Reduction of cross section≥52%
Rockwell hardness HRC22-32
Brinell Hardness HB238-304
B) Diameter>16
Tensile strength (PSI)≥830Mpa
Yield strength≥660MPa
Elongation≥12%
Reduction of cross section≥52%
Rockwell hardness HRC23-34
Brinell Hardness HB242-318
7. Grade: Class 10.9
① Raw material: 40Cr, 20MnTiB, 35CrMo, 42CrMo
② Mechanical capacity:
Tensile strength (PSI)≥1040MPa
Yield strength≥940MPa
Elongation≥9%
Reduction of cross section≥48%
Rockwell hardness HRC32-39
Brinell Hardness HB304-361
Besides, we can offer five different surface treatments as following:
1. Black coating.
2. Plating white zinc or yellow zinc (color-zinc).
Salt spray test time:72 hours, non-rusting
3. Hot galvanizing.
Salt spray test time:120 hours, 380hours, 500hours, non-rusting
4. Dacromet.
Salt spray test time:120 hours, 380hours, 500hours, 1000hours, non-rusting
5. Black electric melting.
Salt spray test time:120 hours, 380hours, 500hours, 1000hours, non-rusting
Contact Us
- Suzhou Zhonhui Railway Parts Co.,Ltd
- Contact nameRita Fung Chat Now
- Phone86-0512-52131172
- Address, Shaoxing, Zhejiang
Product Categories
bolts | New product | other fastener | screws |
New Products
-
track bolts 1-1/8
-
track bolts 7/8
-
track bolts 3/4
-
T-bolts 24X300
-
Conjoined bolts
-
double head screw spike
-
screw spikes
-
TR Plum blossom head spike
-
TR square head screw spike
-
High strength screw spike AS
-
Tapered thread spike
-
S1 screw spike 24X185 used in high-speed rail
Popular Searches
- Rail Clip
- Railway Supplies
- rail clip fastening
- rail anchor
- heavy rail
- railway track
- light rail
- Light Steel Rail
- Railway Steel Rail
- fastening
- steel sleeper
- rail sleeper
- Train Rail
- Steel Heavy Rail
- Track Rail
- Railway Fishplate
- railroad rail
- railway rail
- railway train
- steel railway rail
- railway clamp
- railway heavy steel rail
- steel railway track
- railway rail track
- steel train rail
- din rail clip
- rail fixing clip
- crane rail clips
- tie plate
- rail fastener
Recommended Products
- BS80A railway insulators/Nylon Insulators/GFN Liners
- PA66 Insulators/BS90A insulators/Railway gauge plate insulators
- Railway insulators/Nylon Insulators/GFN Liners
- E-type rail insulators wtih PA66 and glass fibre
- Nabla rail insulators wtih PA66 and glass fibre
- Skl Rail Insulators Wtih Pa66 And Glass Fibre
- E-Type Rail Insulator For Pandrol Rail Fastening
- Rail Nylon Insulator,Railroad Insulator,Rail Insulation
- Railway Nylon Insulators For E Type|SKL|KPO Fastening Systems
- Hydraulic Vertical Rail Bender
- High quality railway dog spike for Sweden
- Carbon Steel Boat Spike for Boat
Find Similar Products By Category
- Transportation > Train & Railway > Railway Supplies
- Please Enter your Email Address
- Please enter the content for your inquiry.
We will find the most reliable suppliers for you according to your description.
Send Now-
Rita Fung
Hi there! Welcome to my shop. Let me know if you have any questions.
Your message has exceeded the limit.

- Contact supplier for lowest price
- Customized Request
- Request Sample
- Request Free Catalogs
Your message has exceeded the limit.
-
Purchase Quantity
-
*Sourcing Details
Your inquiry content must be between 10 to 5000 characters.
-
*Email
Please enter Your valid email address.
-
Mobile