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73043190 HS code BKS cold drawn seamless steel tube and pipe
Grade:20#45# Q345B Q345D 25Mn 27SiMn E355 SAE1026
Standard:GB/T8713 GB/T3639 DIN2391 EN10305 ASTMA519
|
Grade |
chemical composition% |
||||
C |
Si |
Mn |
P |
S |
|
20# |
0.17-0.24 |
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 |
SKTM13C-T(25Mn) |
0.22-0.29 |
0.17-0.37 |
0.70-1.00 |
0.035 |
0.035 |
27SiMn |
0.24-0.32 |
1.10-1.40 |
1.10-1.40 |
0.035 |
0.035 |
E355 |
≤0.22 |
≤0.55 |
≤1.6 |
0.025 |
0.025 |
Q345B |
≤0.2 |
≤0.5 |
1.00-1.60 |
0.030 |
0.030 |
Q345D |
≤0.2 |
≤0.5 |
1.00-1.60 |
0.030 |
0.030 |
SAE1026 |
0.22-0.28 |
0.15-0.35 |
0.60-0.90 |
0.040 |
0.050 |
technique and tolerance
Working method |
Range |
ID size |
Tolerance |
|||||
ID Torlance |
WT |
Ovality |
Curvature |
|||||
H8 |
H9 |
H10 |
||||||
cold drawn |
25-250 |
>30-50 |
+0.039 0 |
+0.062 0 |
+0.100 0 |
±5% to 7.5% ID>210mm ±10% |
≤0.10-0.20 |
0.3 |
cold rolling |
25-150 |
>50-80 |
+0.046 0 |
+0.074 0 |
+0.120 0 |
|||
cold-drawn-honed |
40-250 |
>80-120 |
+0.054 0 |
+0.087 0 |
+0.10 0 |
|||
cold drawn-SRB |
50-250 |
>120-180 |
+0.063 0 |
+0.100 0 |
+0.160 |
|||
cold drawn-polish |
40-250 |
>180-250 |
+0.072 0 |
+0.115 0 |
+0.185 0 |
|||
polish-SRB |
50-250 |
other size and technique parameter upon request |
||||||
Cold drawn(rolled) precision steel pipe and the general difference between ordinary seamless steel pipe:
1, the general characteristics of ordinary seamless steel pipe is welded seam, can withstand greater pressure. The product can be very rough as cast or cold parts.
2, cold drawn precision steel pipe is the product in recent years, mainly the hole, the outer wall size has strict tolerances and roughness.
Cold drawn (rolled) precision steel pipe features:
1. smaller diameter.
2. High precision can be done small batch Health
3. Cold drawn (rolling) finished high precision, good surface quality.
4. Steel pipe cross-sectional area is more complex.
5. Steel pipe performance is superior, the metal is relatively dense.
Products widely used in the hydraulic cylinder of the heavy machinery, Cranes, excavator, forklifts and the Petrol industry.
1. Hydraulic Cylinder Tube------Main products of Xinpeng,
Used in the hydraulic cylinder of the heavy machinery, Cranes, excavator also forklifts. Material is various, mainly STKM-13CT ST52 CK45 and 1020. We can work and get the mechanical property of the clients need and extended the life of the hydraulic cylinder.
2.SRB tube ----- used in Elevator buffer and Hydraulic Cylinder .
This kind tube have a better roughness inner the tube, ra0.2-0.4um and can use directly in the hydraulic cylinder tube. Range: ID 50-250mm and Length can work at most 6M.
3. Cold finished tube---- Widely Used.
Processing range 30-300mm, biggest length is 11M.
Xinpeng Have passed ISo9001 verified from 2008; each tube of ours is strictly in quality control that can assure the product quality of Xinpeng.
packaging details: steel strips bundle
black painting
beveled ends
wooden box
as clients request
delivery details: 15days after 30% payment in advance
1.portable hardness tester
2.wall thickness gauge
3.ultrasonic flaw detector
4.digital rockwall hardness tester
5.tensile testing machine
1.Hydraulic Cylinder Tube---Used in the hydraulic cylinder of the heavy machinery, Cranes, excavator also forklifts. Material is various, mainly STKM-13CT, ST52, CK45 and 1020. We can work and get the mechanical property of the clients need and extended the life of the hydraulic cylinder.
2. Mechanical structure pipe parts in automobile,motorcycles and vehicle
3. Hydraulic circuits, pneumatic lines and hydraulic suspension
4. Hydraulic cylinders
Advantage of Product
1)Professional & skilled, reliable.
2)One-stop total solution
3)ready stock goods with fast delivery
5)Small quantity is acceptable
Best price with good quality.
The partner you can trust.
Good service and very patient.
Tel +86-535-6835398
Website:
Send Inquiry to This Supplier
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