18CrNiMo7-6 hot rolled steel round bars
Classification :
PRODUCT DETAILS
Product introduction
18CrNiMo7-6 hot rolled steel round bars information
18CrNiMo7-6 is a case hardening steel with high toughness. There are a number of variants with high cleanliness requirements. All variants possess tighter composition ranges compared to the standard. produced with the quality class IQ (isotropic quality). This ensures a very low number of elongated sulphide inclusions which will give more isotropic properties. The high oxidic cleanliness will enable the steel to meet the same high cleanliness demands as for re-melted qualities
Product parameters
Chemical Composition
| Standard | Grade | C | Mn | P | S | Si | Ni | Cr | Mo |
EN 10084 |
18CrNiMo7-6 | 0.15-0.21 |
0.50-0.90 |
≤ 0.025 |
≤ 0.035 |
≤ 0.04 |
1.4-1.7 |
1.5-1.8 |
0.25-0.35 |
| 1.6587 |
Physical Property
| Density, g/cm3 | 7.85 | ||||
| Specific heat capacity J/(kg.K) | 460 | ||||
| Electric resistivity Ohm.mm2 /m | 0.18 | ||||
| Electric conductivity Siemens.m/mm2 | 5.55 | ||||
| Modulus of elasticity Gpa | 210 | ||||
| Thermal expansion 10^6 m/(m.K) | 100 ℃ | 200 ℃ | 300 ℃ | 400 ℃ | 500 ℃ |
| 11.1 | 12.1 | 12.9 | 13.5 | 13.9 | |
Mechanical Property
| Size mm | ≤ 11 | 12-30 | 31-63 |
| R Mpa | 1180-1420 | 1080-1320 | 980-1270 |
| Rp 0.2 Mpa | ≥ 835 | ≥785 | ≥ 685 |
| A % | ≥ 7 | ≥ 8 | ≥ 5 |
| C % | ≥ 30 | ≥ 35 | ≥ 35 |
| Kv J | ≥ 44 | ≥ 44 | |
| Hardness HB | 354-406 | 327-384 | 295-373 |
Forging
DIN 1.6587 | 17CrNiMo6 |18CrNiMo7-6 forging temperature:900 – 1100°C,cool slowly in the sand after forged.
Heat Treatment
- Normalizing:850 – 880°C/air
- Soft annealing:650 – 700°C/furnace
- Stress relieve:630- 650oC
- Carburising:880 – 980°C
- Core hardening:830 – 870°C/water
- Intermediate annealing:630 – 650°C
- Case hardening:780 – 820°C/water
- Tempering:150 – 200°C
Surface Hardness
- Treated to improveshearability(+S):Max 255HB
- Soft annealed(+A):Max 229HB
- Treated to hardness range(+TH):179-229HB
- Treated to ferrite-pearlite structure and hardness range(+FP):159-207HB
Application
DIN 1.6587 | 17CrNiMo6 |18CrNiMo7-6 steel for the parts which require core tensile strength and high hardness. Susceptible to the large seized parts with high wearing resistance and loading such as: Heavy Duty Bushings and Bearings, Cam Followers, Clutch Dogs, Compressor Bolts, Extractors, Fan Shafts, Heavy Duty Gears, Pump Shafts, Sprockets, Tappets, Wear Pins, Wire Guides etc..
Warehouse storage
Our company is a quality benchmark enterprise in Shandong Province, a national contract-abiding and credit-abiding enterprise, and a national, industry and group standard unit for "Colored Steel Plate for Building Decoration". We have many customers all over the world, and our products are exported to Asia, the Middle East, America, Europe, Africa and other countries, enjoying a good reputation at home and abroad. Up to now, we have also established long-term, win-win partnerships with a number of large steel mills.
Packing and delivery
We are the first-level agent for Chinese state-owned enterprises Shanghai Baosteel and Taigang Iron and Steel Group. Our products can meet every unique requirement of our customers. We provide customized services. We can support customers with quality inspections if needed. We can provide competitive prices, good quality control, purchasing suggestions. Welcome to inquire and order!
Customer visit
Up to now, we have also established long-term, win-win partnerships with a number of large steel mills. We are the first-level agent for Chinese state-owned enterprises Shanghai Baosteel and Taigang Iron and Steel Group. Our products can meet every unique requirement of our customers. We provide customized services.
Application field
The main supply fields are: aerospace, national defense equipment, military weapons, chemical industry, shipbuilding, nuclear energy, trains, containers, environmental protection, precision machining, auto parts, machinery, electronic products, molds, medical treatment Equipment, construction, decoration, etc.
CERTIFICATE OF HONOR
OUR SERVICE
1 : Prime quality and reasonable price.
2 : Wide excellent experiences with after-sale service.
3 : Every process will be checked by responsible QC which insures every product's quality.
4 : Professional packing teams which keep every packing safely.
5 : Trial order can be done in one week.
6 : Samples can be provided as your requirements
FAQ
Q2:Does the product have quality inspection before loading?
A:Of course, all our products have undergone strict quality inspection before packing.
Q3:Can you provide the samples free?
Q4:What about product prices information?
A:Prices various according to periodic price changes of raw materials.
Q6:What is your terms of payment ?
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Add : Qingdao City, China
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