Honed Tube Q345B Q355B Q345D
Product: Honed tube Q345B Q355B
Dimension: ID 50-250mm, WT3-32mm, Length: less than 12m
Certificate: ISO 9001, IATF 16949
Dingxin Steel Tube has more than 15 years’ experience in producing hydraulic cylinder tubes. We use hydraulic cylinder standard raw material from leading mills as the raw material for cylinder tube. Also we control dimensions with tight allowance, which can help clients save weight. Meanwhile, our pipes are free of defects on internal surface.
Product Details
|
Product name |
Honed seamless steel tube Q345B Q355B Q345D |
|
Standard |
GB/T 3639 |
|
Material |
Q345B Q355B Q345D |
|
Dimension |
ID 50-250mm, WT3-32mm, Length: less than 12m |
|
Delivery condition |
Stress Relieved Annealed (SRA), Cold (Hard) or others based on client’s requirement |
|
Roughness |
Ra 0.2~0.4μm |
|
ID tolerance |
H7~H9 |
|
Straightness |
0.5/1000mm |
|
Applications |
Hydraulic cylinder for construction machinery, aerial working platform, material handling machinery, agriculture machinery and hydraulic jack |
|
Packaging |
Oil pipe, plastic heads on both ends |
|
Marking |
Plant logo, Specification, Material, Steel Grade, Delivery condition, Size , Heat Number |
Chemical Composition
|
Steel Grade |
C |
Si |
Mn |
P |
S |
Cr |
Ni |
Cu |
|
Q345B |
≤0.20 |
≤0.50 |
≤1.70 |
≤0.035 |
≤0.035 |
≤0.30 |
≤0.50 |
≤0.30 |
|
Q345D |
≤0.18 |
≤0.55 |
≤1.60 |
≤0.030 |
≤0.025 |
≤0.30 |
≤0.50 |
≤0.30 |
|
Q355B |
≤0.24 |
≤0.55 |
≤1.60 |
≤0.035 |
≤0.035 |
≤0.30 |
≤0.30 |
≤0.40 |
Mechanical Properties
|
Delivery condition |
Cold finished (Hard) |
Stress Relieved |
||||
|
Material |
Tensile Strength (Mpa) |
Elongation (%) |
Tensile Strength (Mpa) |
Yield Strength (Mpa) |
Elongation (%) |
Impact Value (-20℃) J |
|
Q345B |
≥660 |
≥8 |
≥620 |
≥520 |
≥15 |
|
|
Q345D |
≥660 |
≥8 |
≥620 |
≥520 |
≥15 |
≥27 |
|
Q355B |
≥660 |
≥8 |
≥620 |
≥520 |
≥15 |
|
Finished ID tolerances (mm)
|
ID size (mm) |
ID tolearance (mm) |
||
|
H7 |
H8 |
H9 |
|
|
30 |
0.021 |
0.033 |
0.052 |
|
＞30~50 |
0.025 |
0.039 |
0.062 |
|
＞50~80 |
0.03 |
0.046 |
0.074 |
|
＞80~120 |
0.035 |
0.054 |
0.087 |
|
＞120~180 |
0.040 |
0.063 |
0.1 |
|
＞180~250 |
0.046 |
0.072 |
0.115 |
|
＞250~315 |
0.052 |
0.081 |
0.14 |
|
＞315~400 |
0.057 |
0.089 |
0.17 |
FAQ
1. Q:What is your main market?
A: The North America, South America, Southeast Asia, The middle east, Europe and etc.
2. Q: How many square meters of your factory?
A: More than 25, 000 square meter.
3. Q: Can we visit your factory?
A: You are welcome to visit our factory after contacting with our professional sales team.
Why choose us?
- We produce and supply Honed Tube products that exceed our customers’ expectations in terms of quality, reliability, and durability.
- Our company is based on technology, market-oriented, and service-oriented.
- Our Honed Tube products are manufactured using only the highest quality materials available.
- In order to seek sustainable development and high growth, we are engaged in multi angle operation and multilateral development, and constantly study.
- We always put the needs of our customers first and strive to exceed their expectations with every Honed Tube product we deliver.
- In terms of management, our company not only pays attention to target management, but also advocates rigorous and standardized process control to ensure the steady and healthy development of our company.
- We offer a wide range of Honed Tube products to suit the needs of different industries and applications.
- We are going to make every single effort for Honed Tube Q345B Q355B Q345D.
- Our Honed Tubes are reliable, long-lasting and cost-effective, making them the perfect choice for industrial applications.
- We will continue to serve users in various industries with high-quality product quality, rapid technical support response and method development.
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