Forged Alloy Steel Round Bar Grade 1.6587 / 17CrNiMo6 with Polished Surface and Diameter 30 - 300mm
High-quality forged alloy steel round bars available in diameters ranging from 30mm to 300mm. Grade 1.6587 / 17CrNiMo6 is a heat-treatable, low alloy steel containing nickel, chromium, and molybdenum according to DIN German standards.
| Diameter Range | 13 - 300mm |
| Standard Length | 6 meters (custom cutting available) |
| Material Grade | Alloy Steel 17CrNiMo6 / 1.6587 |
| Available Services | Cutting, polishing, packing, heat treatment |
| Brand Sources | BAOSTEEL, XINGCHENG, DSS, CHONGQING, XNSS, HLXT, etc. |
| Standards Compliance | GB, ASTM, JIS, EN, DIN |
17CrNiMo6/1.6587 steel is renowned for its toughness and ability to develop high strength in heat-treated conditions while maintaining excellent fatigue strength. This material is widely used in heavy-duty applications including shafts, gears, axles, spindles, couplings, and pins.
| Grade | Number | C | Si | Mn | P | S | Cr | Mo | Ni |
|---|---|---|---|---|---|---|---|---|---|
| 17CrNiMo6 | 1.6587 | 0.15-0.20 | ≤ 0.40 | 0.40-0.60 | ≤ 0.035 | ≤ 0.035 | 1.50-1.80 | 0.25-0.35 | 1.40-1.70 |
| Shape | Size (mm) | Process | Tolerance | Length (mm) |
|---|---|---|---|---|
| Round | Φ6-Φ50 | Cold Drawn | H11 | 3000-5800 |
| Round | Φ40-Φ300 | Hot Rolled | -0/+3mm | 3000-10000 |
| Round | Φ120-Φ1000 | Hot Forged | -0/+3mm | 3000-10000 |
| Flat/Square/Block | Thickness: 120-800 Width: 120-1500 |
Hot Forged | -0/+3mm | 500-6000 |
- Temperature range: 840-890°C
- Hold temperature for several hours
- Air cooling
- Temperature range: 630-650°C
- Slow furnace cooling
- Maximum Brinell hardness: 229
- Hardening temperature: 830-865°C
- Oil quenching after temperature hold
- Immediate tempering at ambient temperature
- Typical tempering temperature: 600°C
- Air cooling after tempering
- Tensile strength: 980-1270 MPa
- Yield point: 780 MPa
- Reduction of area: 40%
- Elongation after fracture: 11%
- Impact test (+20°C): 45-50J (Longitudinal)
- Shapes: Round, Square, Flat, Shafts, Rollers, Blocks
- Surface: Black or Bright finish
- Heat Treatment: Normalized, Annealed, or QT
- Straightness: Max 3mm/m (enhanced available on request)
- Length: 3000-5800mm (20' container), 6000mm+ (40' container)
- Grain Size: 5-8 (ASTM E112-96)
- Typical Hardness: HRC 28-32
- Ultrasonic Standards: Sep1921 / ASTM A388 / EN 10228-3
- Non-Metallic Inclusion: 2 max (ASTM E45) / K4≤20 (DIN 50602)
- Forging Ratio: Minimum 4:1
- Marking: Grade, Weight, Length, Size, Heat Number
Material Test Report (Inspection Certificate EN 10204 3.1) includes:
- Chemical analysis
- Mechanical properties
- Surface hardness
- Non-metallic inclusion
- Heat treatment process
- Grain size
- Forging ratio
- NDE test method and criteria
We specialize in various types of round steel and special steels from major steel mills including Tiangang, Shandong Luli Steel, Rongcheng Steel, and other premium manufacturers. As designated agents in Tianjin, we maintain monthly sales of 40,000-60,000 tons.
Our facilities include:
- 4+ warehouses for stock management
- 30+ product grades consistently in stock
- 800+ sizes ensuring short delivery times
- Dedicated processing warehouse for cutting, polishing, and heat treatment
Our global sales network serves various industries including machinery, standard parts, automotive, gears, forging, and hardware tools.
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