AISI 4130 High Quality Precision Carbon Seamless Steel Pipe
ABOT OUR COMPAY :
we are the top 5 manufctue of precision seamless steel tube in China , our company established in 1992 so we have more than 20 years experience in the steel tube world ,we mainly produces various specifications cold finished seamless steel tube which are widely used in hydraulic cylinder ,automobile ,oil drilling ,textil machinery ,printing machinery ,engineering machinery ,and so on ,and welcome to our company visting and negotiating .
HOW TO FIND A GOOD SUPPLIER ?
1. Who can provide satisfied service in a professional way.
2. Who is quick in response and take customers requirements as first priority.
3. Who can offer an reasonable price with good quality.
4. who can supply a wide range of products, saving your time with
5. Who can offer flexible payment terms
6. Who can offer customized products and special service
7. We can do customized products according to your special requirements
ABOUT OUR PRODUCT
| commodity name | AISI 4130 high quality precision carbon seamless steel pipe |
Standard |
DIN2391, DIN2445, EN10305, GB/T 3639, GB 8713 |
Inner Diameter |
30mm~250mm |
Wall Thickness |
0.5mm~18mm |
Material |
10#~45#,16Mn,Q195~Q345,ST35~ST52 |
Length |
as customers required |
Surface treatment |
As customers required |
Package |
1. bundle packing 2. marking as per customer's requests 3. paint on the pipe as per customer request 4. pipe caps as customer reques |
Min Order Quantity |
According to customer's requirement |
Payment terms |
L/C, T/T |
Contact |
If you have any questions, please feel free to contact me. |
Delivery conditions |
1. NBK(+N) after cold forming, eventually above phase transition point, in a protective atmosphere of annealing oxidation medium 2. GBK(+A) after cold forming, annealing in non oxidizing medium protective gas 3. BK(+C) the final heat treatment after cold forming, therefore small steel pipe plastic, the plastic degree does not guarantee 4. BKW(+LC) after final heat treatment, a tiny cold drawing deformation, continue again when machining steel pipe allowed inside certain limits cold deformation(bending, flaring) 5. BKS(+SR) have a stress relief after cold forming, heat treatment, steel pipe can be carried out within a certain limit in the appropriate processing again |
SOME DIMENSIONS
40*50 |
90*110 |
140*170 |
190*215 |
40*55 |
95*110 |
145*170 |
190*220 |
50*60 |
95*115 |
150*170 |
190*225 |
50*65 |
100*110 |
150*175 |
200*220 |
55*70 |
100*114 |
150*180 |
200*225 |
60*70 |
100*115 |
155*180 |
200*230 |
60*75 |
100*120 |
160*175 |
200*245 |
60*78 |
100*125 |
160*180 |
200*250 |
63*73 |
105*125 |
160*185 |
220*250 |
63*75 |
110*125 |
160*190 |
220*270 |
63*76 |
110*130 |
160*195 |
225*250 |
63*78 |
115*130 |
165*190 |
240*273 |
65*80 |
115*135 |
165*205 |
250*290 |
70*80 |
120*140 |
170*200 |
250*300 |
70*82 |
125*140 |
180*200 |
260*300 |
70*85 |
125*145 |
180*205 |
280*323 |
70*90 |
125*150 |
180*210 |
280*355 |
75*90 |
130*150 |
180*215 |
300*350 |
80*92 |
130*155 |
180*220 |
200*213 |
80*95 |
130*160 |
185*205 |
200*216 |
80*100 |
135*160 |
185*215 |
250*266 |
85*100 |
140*160 |
185*220 |
|
90*105 |
140*165 |
190*210 |
|
CHEMICAL COMPOSITION OF MATERIAL
Steel grade |
Chemical composition,% |
|
|||||
C |
Si |
Mn |
P |
S |
Cr |
||
≤ |
|
||||||
St45 (20#) |
0.17-0.24 |
0.17-0.37 |
0.35-0.65 |
0.035 |
0.035 |
0.25 |
|
ST52(E355) |
≤0.22 |
≤0.55 |
≤1.6 |
0.025 |
0.025 |
0.25 |
|
SAE1026 |
0.22-0.28 |
0.15-0.35 |
0.6-0.9 |
0.04 |
0.05 |
/ |
|
STKM 13C |
≤0.25 |
≤0.35 |
0.3-0.9 |
0.04 |
0.04 |
/ |
|
Q345B |
≤0.2 |
≤0.5 |
1.0-1.6 |
0.03 |
0.03 |
0.30 |
|
CK45 |
0.42-0.50 |
0.17-0.37 |
0.5-0.8 |
0.035 |
0.035 |
0.25 |
|
MECHANICAL PROPERTY
Delivery |
cold finished(hard)(BK) |
Cold drawn and stress-relieved(BK+S) |
|||
Steel grade |
Rm MPa |
Elongation |
Rm MPa |
ReH MPa |
Elonggation |
St45 |
≥550 |
≥5 |
≥520 |
≥375 |
≥15 |
20# |
≥550 |
≥8 |
≥520 |
≥375 |
≥15 |
St52 (E355) |
≥640 |
≥5 |
≥600 |
≥520 |
≥14 |
SAE1026 |
≥640 |
≥5 |
≥600 |
≥510 |
≥15 |
STKM 13C |
≥550 |
≥8 |
≥520 |
≥375 |
≥15 |
Q345B |
≥640 |
≥5 |
≥600 |
≥520 |
≥14 |
CK45 |
≥640 |
≥5 |
≥600 |
≥520 |
≥10 |
OUR PROCESSING
- Pretreatment : Acid cleaning- Parkerizing

- Cold drawn/cold rolled
- Annealing furnace—— stress-relieving (+SR)

- Straightener—— Straightening/ Leveling

- Straightness inspecting
- Dimension inspecting

- Sawing off not good parts

- Lathe

- Surface Polishing
Finished honed tube

Application: Hydraulic cylinder tube
OUR SERVICES
1. Cargo track service during transporting and feedback service after cargo is loaded on board
2. Flexible terms of payment by
3. Big discount for repeat customers
4. Smooth delivering procedure
5. Payment Terms: T/T , L/C And so on.
PACKAGING AND SHIPPING
(1)Delivery time: In 20 days or according to client's requires
(2)Trade terms: EXW/FOB/CIF etc
(3)Payments: T/T or L/C or according to client's requires
(4)Port: Yantai or Qingdao
(5)MOQ: 5 metric tons or at customer's demands
(6)Packing: we usually bundle with steel strips ,branding parcel or wooden box outside ,or according to the customer’s acquirement
OUR CERTIFICATE
Send Inquiry to This Supplier
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