SAE J524 Cold Drawn Seamless Steel Pipe for Hydraulic Application
| Customization: | Available |
|---|---|
| Type: | Seamless |
| Technique: | Cold Drawn |
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Basic Info.
- Material
- Carbon and Alloy
- Surface Treatment
- Bright, Black Phosphated, Galvanizing
- Usage
- Hydraulic/Automobile Pipe
- Section Shape
- Round
- Standard
- DIN 2391, En10305-1, En10305-4, SAE J524
- Delivery Condition
- Bk, Gbk, Bkw, Bks or Nbk
- Steel Grade
- St35, St37, St37.4, E235, E355, St45, St52.4, 1010
- Certificate
- ISO 9001 Ts16949
- Secondary or Not
- Non-Secondary
- Application
- Automotive Industry, Hydraulic System, Other Indus
- Transport Package
- Plywood Box or Budles
- Specification
- OD2mm -60mm/ 0.125-1.5inch
- Trademark
- CW
- Origin
- China
- HS Code
- 7304319000
Product Description
High Precision Seamless Steel Tube for Automotive Industry and Hydraulic Application
APPLICATIONS
1. Automotive fields
A. Fuel injection lines/nozzles
B. CNG (Compressed Nature Gas) tube-- Burst pressure: 1307Bar, Working Pressure: around 350bar
C. Drive transmission: Steering column elements
D. Gear shafts, hand brake, front axles, airbag inflators, stabilizers, seat fasteners, front-wheel drive shafts
E. Shock absorber and others
2. Hydraulic Fields
A. Hydraulic circuits (HPL), pneumatic lines, and hydraulic suspension system
B. Hydraulic cylinders (HPZ)
3. Other Fields
Hydraulic machines, Hydraulic cylinder, heat exchanger, high precision machines, oil lines, and others in need
ADDITIONAL SURFACE TREATMENT AFTER TUBE MAKING
1. Galvanizing
A. Silver galvanized
B. Yellow galvanized
C. Olive green coated
Layer thickness: 8-20um, Salty Spray Test: 48-150 hours
2.Black phosphate
| Material Chemical Composition (%) | ||||||||||||
| Steel Grade | Material Number | C | Si | Mn | P | S | Cr | Mo | Tensile strength Rm (Mpa) Min | Yield Strength Reh (Mpa) Min | A Elongation(%) Min | |
| ASTM A822-A450 | A822 | - | Max 0.18 | - | 0.27-0.63 | Max 0.048 | Max 0.058 | - | - | 310 | 170 | 35 |
| ASTM A179 | A179 | - | 0.06-0.18 | - | 0.27-0.63 | Max 0.035 | Max 0.035 | - | - | 310 | 170 | 35 |
| SAE J524 | J524 | - | Max 0.18 | - | 0.3-0.6 | Max 0.04 | Max 0.05 | - | - | 325 | 180 | 35 |
| Material Chemical Composition (%) | |||||||||
| Standard | Steel Grade | Material Number | C | Si | Mn | P | S | Cr | Mo |
| DIN 2391 | ST35 | 1.0308 | <= 0.17 | <= 0.35 | >=0.04 | <=0.025 | <=0.025 | - | - |
| ST45 | 1.0408 | <= 0.21 | <= 0.35 | >=0.04 | <=0.025 | <=0.025 | - | - | |
| ST52 | 1.058 | <= 0.22 | <= 0.55 | <=1.60 | <=0.025 | <=0.025 | - | - | |
| BK | BKW | BKS | GBK | ||||||
| Steel Grade | Rm Tensile Strength (Mpa) Min | A Elongation(%) Min | Rm Tensile Strength (Mpa) Min | A Elongation(%) Min | Rm Tensile Strength (Mpa) Min | Rel Yield Strength(Mpa) Min | A Elongation (%) Min | Rm Tensile Strength (Mpa)Min | A Elongation (%)Min |
| ST35 | 480 | 6 | 420 | 10 | 420 | 315 | 14 | 315 | 25 |
| ST45 | 580 | 5 | 520 | 8 | 520 | 375 | 12 | 390 | 21 |
| ST52 | 640 | 4 | 580 | 7 | 580 | 420 | 10 | 490 | 22 |
| Standard | Steel Grade | Material Number | C | Si | Mn | P | S | Cr | Mo |
| EN10305-1 EN10305-4 |
E235 | 1.0308 | <= 0.17 | <= 0.35 | >=0.04 | <=0.025 | <=0.025 | - | - |
| E255 | 1.0408 | <= 0.21 | <= 0.35 | >=0.04 | <=0.025 | <=0.025 | - | - | |
| E355 | 1.058 | <= 0.22 | <= 0.55 | <=1.60 | <=0.025 | <=0.025 | - | - |
| Steel Grade | (+C) | (+LC) | (+SR) | (+A) | (+N) | |||||||
| Rm Tensile Strength (Mpa) Min | A Elongation(%) Min | Rm Tensile Strength (Mpa) Min | A Elongation(%) Min | Rm Tensile Strength (Mpa) Min | Rel Yield Strength(Mpa) Min | A Elongation (%) Min | Rm Tensile Strength (Mpa)Min | A Elongation (%)Min | Rm Tensile Strength (Mpa) | Rel Yield Strength (Mpa) Min | A Elongation (%) Min | |
| E235 | 480 | 6 | 420 | 10 | 420 | 350 | 16 | 315 | 25 | 340-480 | 235 | 25 |
| E255 | 580 | 5 | 520 | 8 | 520 | 375 | 12 | 390 | 21 | 440-570 | 255 | 21 |
| E355 | 640 | 4 | 580 | 7 | 580 | 450 | 10 | 450 | 22 | 490-630 | 355 | 22 |
| Material Chemical Composition (%) | |||||||||
| Steel Grade | Material Number | C | Si | Mn | P | S | Cr | Mo | |
| GB/T 8162 GB/T 8163 GB/T 3639 |
10 | - | 0.07-0.14 | 0.17-0.35 | 0.35-0.65 | <=0.035 | <=0.04 | - | - |
| 20 | - | 0.17-0.23 | 0.17-0.37 | 0.35-0.65 | ≤0.035 | ≤0.035 | - | - | |
| 45 | - | 0.42-0.50 | 0.17-0.37 | 0.50-0.80 | ≤0.035 | ≤0.035 | - | - | |
| Q345B/16Mn | - | ≤0.20 | ≤0.50 | <=1.70 | ≤0.035 | ≤0.035 | - | - | |
| Some samples of related steel grade | ||||||
| GB | TOCT | ASTM | BS | JIS | NF | DIN |
| 10F | 1010 | 040A10 | XC10 | |||
| 10 | 10 | 10,101,012 | 045M10 | S10C | XC10 | C10,CK10 |
| 20 | 20 | 1020 | 050A20 | S20C | XC18 | C22,CK22 |
| 45 | 45 | 1045 | 080M46 | S45C | XC45 | C45,CK45 |
| 30CrMo | 30XM | 4130 | 1717COS110 | SCM420 | 30CD4 | |
| 42CrMo | 4140 | 708A42 | 42CD4 | 42CrMo4 | ||
| 708M40 | ||||||
| 35CrMo | 35XM | 4135 | 708A37 | SCM3 | 35CD4 | 34CrMo4 |
Delivery conditions: Precision tubes are delivered in following conditions (first symbol lists previous designation, the new one according to EN is in brackets):
BK (+C) Cold finished/hard (cold finished as drawn).
No heat treatment after last cold forming process.
BKW (+LC) Cold finished/soft (lightly cold worked).
After last heat treatment there is a light finishing pass (cold drawing).
BKS (+SR) Cold finished/stress relieve annealed.
After the final cold forming process the tubes are stress relieve annealed.
GBK (+A) Annealed.
After the final cold forming process the tubes are annealed in a controlled atmosphere.
NBK (+N) Normalized.
After the final cold forming process the tubes are annealed above the upper transformation point in a controlled atmosphere.
Tests: all tubes are checked according to the relevant production standard;supplementary/optional tests are available on request; chemical mechanical and technological tests are made according to relevant standard
Certificates: according to EN 10204 3.1
Packed in bundles or boxes
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