EN10305-1 E355 Cold Rolled Hydraulic Cylinder Honed Tubes
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 |
mechanical property
Delivery Condition | Cold drawn+ stress-relieved(BK+S)(SR) | Cold fished (hard)(BK) | |||
Steel Grade | Tensile strength (Rm Mpa) | Yield strength | Elogation A5% | Tensile strength (Rm Mpa) | Elogation A5% |
20# | ≥520 | ≥375 | ≥15 | ≥550 | ≥8 |
45# | ≥600 | ≥520 | ≥10 | ≥640 | ≥5 |
E355(Q345B,St52) | ≥600 | ≥520 | ≥14 | ≥640 | ≥5 |
25Mn | ≥600 | ≥510 | ≥15 | ≥640 | ≥5 |
27SiMn | ≥760 | ≥610 | ≥10 | ≥800 | ≥5 |
honed and srb tube
ID Tolerance unit :mm(metric size upon customized)
ID | OD | WT | ID Roughness (max) | ID Tolerance | Straightness | Length (max) |
63.5 | 76.2 | 6.35 |
RA0.4micron |
H8 H9 |
1:1000 or customized |
6m |
63.5 | 82.55 | 9.525 | ||||
76.2 | 88.9 | 6.35 | ||||
76.2 | 95.25 | 9.525 | ||||
88.9 | 101.6 | 6.35 | ||||
88.9 | 107.95 | 9.525 | ||||
101.6 | 114.3 | 6.35 | ||||
101.6 | 9.525 | 6.35 | ||||
114.3 | 127 | 6.35 | ||||
114.3 | 139.7 | 12.7 | ||||
127 | 139.7 | 6.35 | ||||
127 | 152.4 | 12.7 |
we can provide such pipes:
1.Seamless steel tube and carbon tube
Widely used in oil,drilling, gas, Cranes, excavator also forklifts. Material is various, mainly STKM-13CT ST52 CK45 and AISI 1020. We can also offer as customized seamless steel tube.
2.precision steel tubes
cold drawn steel tube/cold rolled steel pipe
Grade: 20#45#16Mn25Mn Q345 27SiMnE355ST52 STKM13A STKM13C
Standard: GB/T8713GB/T3639DIN2391EN10305ASTMA519
Range: 30-300mm
Length: 11m(max)
The cold process can remove the oxide layer outside to improve surface and offer better mechanical property, also can change ID,OD,WT to meet every client request.
3. Honed steel tube&SRB steel pipe
ID Tolerance: H8H9 or as client's request
ID Roughness: RA0.4micron(max)
Length: 6m(max)
Inner roughness: Ra0.2-0.8um
Straightness: 1:1000 or customized
This process can improve the roughness of the inner tube to 0.2-0.8um and make tube for cylinder using directly.
4.Hydraulic cylinder steel tube
packaging details:
1.bundle with steel strips
2.brand parcel
3.wooden box
4.as clinets request
delivery details: 15days after payment
precision tube application:
1.the damping pipe for the motor
2.the cylinder of the moptor absorbers
3.oilcan
4.the pipe for anti-ash mask
5.the cylinder of car absorbers
6.other hydraulic pressure damping product.
1.portable hardness tester
2.wall thickness gauge
3.ultrasonic flaw detector
4.digital rockwall hardness tester
5.tensile testing machine
6.USA import UT test machine
1.Short delivery time:
Within 45 days below 100Metric Tons after sight of Irrevocable L/C or receipt Deposit.
2.Quality assurance:
Strictly according to International standard like ASTM API DIN JIS.
3.Competitive price:
Provide our best price to reach our cooperation
4.Superior Service:
We will try our best to satisfy your per request.
We prepare to provide the pre-sales serves, service during sales and afer-sales service for coustomes by the way of advance service, value added service and personalized service.
5.Our advantage:
1)professional & skilled & reliable
2)One step total solution
3)Ready stock goods with fast delivery
4)Customizable:Non-standard sizes are also available
5)small quantity is acceptable
6)refund or replacement for any product faulty
Tel +86-535-6835398