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{"title":"17CrNiMo6 Grade Alloy Steel Round Bar with Polished Surface and OD 6-630mm","imgUrl":"https:\/\/img.chinax.com\/nimg\/38\/4c\/dddcbd1ce85df8d29a38b4e559b3-200x200-1\/17crnimo6_grade_alloy_steel_round_bar_with_polished_surface_and_od_6_630mm.jpg","attrs":{"Minimum Order Quantity":"1 Ton","Price":"US $988-1,221 \/ Ton","Diameter":"13 - 300mm","Length":"6m or custom"}}
{"title":"ASTM A29\/A29m Hot Rolled Alloy Steel Round Bars SAE4340 10-350mm","imgUrl":"https:\/\/img.chinax.com\/nimg\/bb\/a1\/eb9afbd48509c13f9c6fa7b71d79-200x200-1\/astm_a29_2fa29m_hot_rolled_alloy_steel_round_bars_sae4340_10_350mm.jpg","attrs":{"Brand Name":"DELTA","Model Number":"SAE4340","Certification":"ISO","Place of Origin":"China"}}
{"title":"25Cr2MoVA Alloy Steel Round Bar Diameter 10 - 300mm Custom Cutting in Length","imgUrl":"https:\/\/img.chinax.com\/nimg\/b7\/8f\/c374af89362ac900e00ce51f86b6-200x200-1\/25cr2mova_alloy_steel_round_bar_diameter_10_300mm_custom_cutting_in_length.jpg","attrs":{"Brand Name":"DELTA","Model Number":"DIN 1.8159 (25CrMoV6-4) \/ 25Cr2MoVA","Certification":"ISO","Place of Origin":"China"}}
{"title":"EN DIN Standard 41CrAlMo7 Alloy Steel Round Bar Diameter 10 - 350mm SCM645 Alloy","imgUrl":"https:\/\/img.chinax.com\/nimg\/86\/8a\/f384d75ceea894a15b4f1ea6423b-200x200-1\/en_din_standard_41cralmo7_alloy_steel_round_bar_diameter_10_350mm_scm645_alloy.jpg","attrs":{"Brand Name":"DELTA","Model Number":"41CrAliMo7","Certification":"ISO","Place of Origin":"China"}}
{"title":"25Cr2MoVA \/ DIN1.8159 Alloy Steel Round Bar Hot Rolled Diameter 20 - 350mm in 6m","imgUrl":"https:\/\/img.chinax.com\/nimg\/55\/19\/5e678c170e39068beeabe330b547-200x200-1\/25cr2mova_2f_din1_8159_alloy_steel_round_bar_hot_rolled_diameter_20_350mm_in_6m_length.jpg","attrs":{"Brand Name":"DELTA","Model Number":"DIN 1.8159 (25CrMoV6-4) \/ 25Cr2MoVA","Certification":"ISO","Place of Origin":"China"}}
{"title":"EN 1.8507 (34CrAlMo5-10) Nitriding Steel Round Bar Diameter 10 - 300mm Custom","imgUrl":"https:\/\/img.chinax.com\/nimg\/25\/c9\/4f41b121bc96fda3bc795edf2de2-200x200-1\/en_1_8507_2834cralmo5_10_29_nitriding_steel_round_bar_diameter_10_300mm_custom_cutting.jpg","attrs":{"Brand Name":"DELTA","Model Number":"34CrAlMo5-10 \/ 1.8507","Certification":"ISO","Place of Origin":"China"}}
High-quality alloy steel round bars available at competitive prices, manufactured to meet international standards including GB, ASTM, JIS, EN, and DIN.
Product Specifications
Diameter Range
13 - 300mm
Standard Length
6 meters or 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.
Material Overview
17CrNiMo6/1.6587 steel is a heat-treatable, low alloy steel containing nickel, chromium, and molybdenum according to DIN German standards. Known for its exceptional toughness and ability to develop high strength in heat-treated conditions while maintaining excellent fatigue strength. 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
Available Sizes & 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: 980-1270MPa
Yield point: 780MPa
Reduction of area: 40%
Elongation: 11%
Impact test (+20°C): Longitudinal - 45~50J
Delivery Conditions
Available shapes: Round, Square, Flat, Shafts, Rollers, Blocks
Surface conditions: Black surface, Bright surface
Heat treatment options: Normalized, Annealed, QT
Straightness: Maximum 3mm/m (enhanced straightness available on request)
Non-metallic inclusion: 2 max (ASTM E45) / K4≤20 (DIN 50602)
Forging ratio: Minimum 4:1
Marking includes: Grade, Weight, Length, Size, Heat Number
Quality Certification
Material test report (Inspection Certificate EN 10204 3.1) provided, documenting:
Chemical analysis
Mechanical properties
Surface hardness
Non-metallic inclusion
Heat treatment process
Grain size
Forging ratio
NDE test method/criteria
Company Capabilities
We maintain extensive inventory with over 4 warehouses stocking various round steel products. Our portfolio includes more than 30 grades and 800 sizes to ensure quick delivery times. Specialized processing services include cutting, polishing, and heat treatment. Our global sales network serves machinery, automotive, gear manufacturing, forging, and hardware tool industries.
Available Steel Grades
We manufacture a comprehensive range of steel grades including EN series, SAE standards, AISI specifications, BS970, ASTM standards, DIN materials, and GOST classifications. Contact us for specific grade availability and technical specifications.
Product Gallery
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Business Type:
Manufacturer,Distributor/Wholesaler,Exporter
Total Annual:
>1000000
Employee Number:
>100
Ecer Certification：
Verified Supplier
Our company is located in Wuxi City, China, we are a stainless steel plate, seamless steel pipe, round steel, steel belt, decorative pipe and other products distribution wholesale private enterprise. Our company operates stainless steel plate, seamless steel pipe, round steel, steel belt, decorative... Our company is located in Wuxi City, China, we are a stainless steel plate, seamless steel pipe, round steel, steel belt, decorative pipe and other products distribution wholesale private enterprise. Our company operates stainless steel plate, seamless steel pipe, round steel, steel belt, decorative...
