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Q345B Seamless Steel Pipe Hollow Round Bar Cold Drawn Steel Bar For Machining
Key Attributes
Brand Name:
HY
Place of Origin:
China
Certification:
ISO9001:2008
Minimum Order Quantity:
5 tons
Price:
Negotiation
Supply Ability:
30tons a day
Delivery Time:
30days
Payment Terms:
L/C, T/T
Standard Packaging:
Anti rust oil to be applied on material and each rod to be packed in paper sleeve
Product Summary
Q345B Seamless Steel Pipe Cold Drawn Steel Bar For Machining Detailed Product Description 1. Material: 42CrMo4, 40Cr, CK45, ST52, 20MnV62. Tensile strength: Not less than 610 N/MM23. Yield strength: Not less than 355 N/MM24. Advanced inspection apparatus5. Complete manufactured equipment Detailed Description1.CHEMICAL COMPOSITIONMaterialC%Mn%Si%S%P%V%Cr%Ck450.42-0.500.50-0.800.040.0350.035 ST520.221.60.550.0350.04 20MnV60.16-0.221.30-1.700.10-0.500.0350.0350.10-0.20 42CrMo40
Product Custom Attributes
Highlight
Seamless Steel Pipe Hollow Round Bar
,Q345B hollow steel bar
,Precision Machining Cold Drawn Steel Bar
Product:
Chrome Hollow Round Bar
Material:
Steel
OD:
6mm - 1000mm
Length:
1000mm - 8000mm
Surface Treatment:
Hard Chrome Plating
Hard Chrome Thickness:
20 - 30 Micron
Product Description
Q345B Seamless Steel Pipe Cold Drawn Steel Bar For Machining
Detailed Product Description
1. Material: 42CrMo4, 40Cr, CK45, ST52, 20MnV6
2. Tensile strength: Not less than 610 N/MM2
3. Yield strength: Not less than 355 N/MM2
4. Advanced inspection apparatus
5. Complete manufactured equipment
Detailed Description
1.CHEMICAL COMPOSITION
Material | C% | Mn% | Si% | S% | P% | V% | Cr% |
Ck45 | 0.42-0.50 | 0.50-0.80 | 0.04 | 0.035 | 0.035 |
|
|
ST52 | 0.22 | 1.6 | 0.55 | 0.035 | 0.04 |
|
|
20MnV6 | 0.16-0.22 | 1.30-1.70 | 0.10-0.50 | 0.035 | 0.035 | 0.10-0.20 |
|
42CrMo4 | 0.38-0.45 | 0.60-0.90 | 0.15-0.40 | 0.03 | 0.03 |
| 0.90-1.20 |
40Cr | 0.37-0.45 | 0.50-0.80 | 0.17-0.37 |
|
|
| 0.80-1.10 |
2.MECHANCIAL PROPERTIES
Material | T.S N/MM2 | Y.S N/MM2 | E%(MIN) | CHARPY | CONDITION |
CK45 | 610 | 355 | 15 | >41J | NORMALIZE |
CK45 | 800 | 630 | 20 | >41J | Q + T |
ST52 | 500 | 355 | 22 |
| NORMALIZE |
20MnV6 | 750 | 590 | 12 | >40J | NORMALIZE |
42CrMo4 | 980 | 850 | 14 | >47J | Q + T |
40Cr | 1000 | 800 | 10 |
| Q + T |
3. SUPPLY CONDITION
Ground and chrome plated
4. CHROME THICKNESS
20 to 30 micron
5. SURFACE ROUGHNESS
Ra≤0.2 micron and Rt≤2 micro
6. TOLERANCES ON DIA
ISO f7 on the diameter
7.OVALITY
Half of the tolerance ISO f7
8. STRAIGHTNESS
≤0.2MM/M
9. SURFACE HARDNESS
850-1150HV (vickers 100g)
10.COHESION
No cracks,breaking or detaching after thermic shock(warming up at 300 celsius degrees and cooling
in water)
11 .POROSITY
Test according to ISO 1456/1458 and result yaluation according to ISO 4540 rating 8-10
12 CORROSION RESISTANCE
Test in natural salt spray according to ASTM B 117-72hours
Results evaluation according to ISO 4540 RATING 7-10
13. WELDABILITY
Good
14. PACKING
Anti rust oil to be applied on material and each rod to be packed in paper sleeve
15. CERTIFICATE
All certificate related with material heat treatment and plating is required
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