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Forged Alloy Steel Round Bar Grade 1.6587 / 17CrNiMo6 with Polished Surface and Diameter 30 - 300mm

Minimum Order Quantity	1 Ton
Price	US $980-1,322 / Ton

Product Details

Diameter Range	30 - 300mm	Length	6m Or Custom
Chemical Composition C	0.15-0.20	Chemical Composition Si	≤ 0.40
Chemical Composition Mn	0.40-0.60	Chemical Composition Cr	1.50-1.80
Chemical Composition Mo	0.25-0.35	Chemical Composition Ni	1.40-1.70
Tensile Strength	980-1270MPa	Yield Point	780MPa
Elongation After Fracture	11%	Impact Test	45~50J
Hardness HRC	28-32	Normalizing Temperature	840-890°C
Annealing Temperature	630-650°C
Highlight	Grade 1.6587 Alloy Steel Round Bar , Polished Surface Steel Round Bar , Diameter 30 - 300mm Round Bar

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Product Description

Forged Alloy Steel Round Bar Grade 1.6587 / 17CrNiMo6

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.

Product Specifications

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.

Chemical Composition (DIN 17210 Standard)

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

Size, Tolerance & Processing Options

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

Heat Treatment Processes

Normalizing

Temperature range: 840-890°C
Hold temperature for several hours
Air cooling

Annealing

Temperature range: 630-650°C
Slow furnace cooling
Maximum Brinell hardness: 229

Hardening and Tempering (QT)

Hardening temperature: 830-865°C
Oil quenching after temperature hold
Immediate tempering at ambient temperature
Typical tempering temperature: 600°C
Air cooling after tempering

Mechanical Properties (Reference Values)

Tensile strength: 980-1270 MPa
Yield point: 780 MPa
Reduction of area: 40%
Elongation after fracture: 11%
Impact test (+20°C): 45-50J (Longitudinal)

Delivery Conditions

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

Quality Certification

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

Forged Alloy Steel Round Bar Grade 1.6587 / 17CrNiMo6 with Polished Surface and Diameter 30 - 300mm

Grade 1.6587 Alloy Steel Round Bar

Polished Surface Steel Round Bar

Diameter 30 - 300mm Round Bar