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SKL1 railway clips
- 0 Ton / Tons per Month
- T/T L/C D/P D/A
- 7 days
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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-rusti
Contact Us
- Suzhou Zhonhui Railway Parts Co.,Ltd
- Contact nameRita Fung
- Phone86-0512-52131172
- Address Shaoxing,Zhejiang
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