Product Description
| Inside Dia (mm) | ID Tolerance (mm) | WT Tolerance (mm) | |||
| H7 | H8 | H9 | H10 | ||
| ≤30 | +0.021/0 | +0.033/0 | +0.052/0 | +0.084/0 | ±7.5% >210mm ±10% |
| 30 - ≤50 | +0.025/0 | +0.039/0 | +0.062/0 | +0.100/0 | |
| 50 - ≤80 | +0.030/0 | +0.046/0 | +0.074/0 | +0.120/0 | |
| 80 - ≤120 | +0.035/0 | +0.054/0 | +0.087/0 | +0.140/0 | |
| 120 - ≤180 | +0.040/0 | +0.063/0 | +0.100/0 | +0.160/0 | |
| 180 - ≤250 | +0.046/0 | +0.072/0 | +0.115/0 | +0.185/0 | |
| 250 - ≤315 | +0.052/0 | +0.081/0 | +0.130/0 | +0.210/0 | ±7.5% >210mm ±10% |
| 315 - ≤700 | +0.057/0 | +0.089/0 | +0.140/0 | +0.230/0 |
| Steel Grade | Chemical composition % | |||||
| C | Si | Mn | P | S | Al | |
| ≤ | ≥ | |||||
| 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 | / |
| Q345B | ≤0.2 | ≤0.5 | 1.00-1.60 | 0.03 | 0.03 | / |
| Q345D | ≤0.2 | ≤0.5 | 1.00-1.60 | 0.03 | 0.03 | 0.015 |
| 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 | / |
| ST52 | ≤0.22 | ≤0.55 | ≤1.6 | 0.025 | 0.025 | / |
| SAE1026 | 0.22-0.28 | 0.15-0.35 | 0.60-0.90 | 0.04 | 0.05 | / |
| Delivery Condition | Cold Finished (hard) (BK) | Cold Drawn and Stress-Relieved (BK+S) | |||
| Steel Grade | Tensile Strength (Mpa) | Elongation (%) | Tensile Strength (Mpa) | Yield Strength (Mpa) | Elongation (%) |
| 20# | ≥550 | ≥8 | ≥520 | ≥375 | ≥15 |
| 45# | ≥640 | ≥5 | ≥600 | ≥520 | ≥10 |
| 16Mn | ≥640 | ≥600 | ≥520 | ≥14 | |
| 25Mn | ≥640 | ≥600 | ≥510 | ≥15 | |
| 27SiMn | ≥800 | ≥760 | ≥610 | ≥10 | |
| ST52 | ≥640 | ≥600 | ≥520 | ≥14 | |
| SAE1026 | ≥640 | ≥600 | ≥510 | ≥15 | |
1.Steel grade: ST52.3, 1020, CK45, 4140 , E355,4130, Stainless Steel 304/316, Duplex 2205, Alloy Steel etc.
2.ID: 15mm-1500mm
3.OD:18mm-1800mm
4.Length: max 16m
5.Straightness: 0.5/1000 6.Roughness(Ra): 0.2-0.4um 7.ToleranceEXT:DIN2391,DIN17175,DIN1629,ASTM519,ASTMA106,JISG3441,GB/T8163,GB/T3639,GB9948,GB/T5312 etc.
8.Tolerance INT: ISO H8
9.Surface treatment:galvanized
10.Tolerance:±7%
11.Oiled or unoiled:Slightly Oiled
12.Delivery date:22-30
13.Type: cold drawing, cold rolling, honed
14.Conservation: anti rust oiled inside and outside surface, plastic caps in both ends
15.Package: bundle with steel strip and knitting strip, or wooden case.
Q1: Are You Manufacture or Trade Company?
We are manufacture,we have 10 years experience for supply Metal material and products in domestic.
Q2: How can we guarantee quality?
Always a pre-production sample before mass production;Always final Inspection before shipment;
Q3: What is your terms of payment ?
1.T/T: 30% deposit in advance, the balance 70% paid before shipment
Q2: How can we guarantee quality?
Always a pre-production sample before mass production;Always final Inspection before shipment;
Q3: What is your terms of payment ?
1.T/T: 30% deposit in advance, the balance 70% paid before shipment
2.30% down payment, the balance 70% paid against L/C at sight
3.Upon negotiation
Q4: Can you provide Certificates for aluminum materials ?
Yes,we can supply MTC-Material Test Certificate.
Q5: Can you provide sample?
Yes, we can provide you sample, but you need to pay for the sample and freight firstly. We will return the sample fee after you make an order.
3.Upon negotiation
Q4: Can you provide Certificates for aluminum materials ?
Yes,we can supply MTC-Material Test Certificate.
Q5: Can you provide sample?
Yes, we can provide you sample, but you need to pay for the sample and freight firstly. We will return the sample fee after you make an order.