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{"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 transmission spline forgings manufactured from premium case-hardening steels 34CrNiMo6 and 17CrNiMo6, certified to SGS standards for quality assurance.
Material Specifications
Grade 18CrNiMo7-6 (1.6587)
Classification: Alloy special steel Standard: EN 10084:2008 Case hardening steels
Chemical Composition (%)
C
Si
Mn
Ni
P
S
Cr
Mo
0.15 - 0.21
max 0.4
0.5 - 0.9
1.4 - 1.7
max 0.025
max 0.035
1.5 - 1.8
0.25 - 0.35
Mechanical Properties
Nominal Thickness
Tensile Strength (Rm)
Brinell Hardness (HBW)
to 16 mm
1200 MPa
255 (+S)
229 (+A)
179-229 (+TH)
159-207 (+FP)
International Equivalent Grades
Germany
France
England
Italy
China
17CrNiMo6 17CrNiMo7
18NCD6
820A16
18NiCrMo7
17Cr2Ni2Mo
Heat Treatment Conditions
+A: Soft annealed +AC: Annealed for carbide spheroidization +AR: As rolled +AT: Solution annealed
+FP: Ferrite-pearlite structure +N: Normalized +QT: Quenched and tempered +TH: Treated to hardness range
Product Gallery
Applications
Transmission systems for automotive and industrial equipment
Tractor motors and medium-small automotive components
High-class carburization and cyanide carburizing parts
Oil drilling equipment, mining claws and cones
Carburized gears, pinions, shafts, bearings, and crankshafts
Available Sizes & Conditions
Round Bar Diameter: 12-380mm Forms: Round bars, flat bars, plates, blocks Conditions: Pre-hardened, hot rolled, annealed, quenched and tempered Surface Finish: Black, pre-machined, grinding, polish
Quality Assurance & Services
Why Choose Our Products
Government-Owned Mill Quality: Materials sourced directly from certified steel manufacturers
ISO 9001 Certified: Comprehensive quality management system
Competitive Pricing: High-quality products at affordable prices
Fast Delivery: Priority treatment for all orders with shortest lead times
Value-Added Services
Metal cutting and sizing to specifications
Machining services: blanking, milling, grinding
Custom heat treatment processes
Sawing for small or large quantities
Sawing-to-size capabilities
Unique inventory of specialty steels
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...
