Ecer asks for your consent to use your personal data to:
Personalised advertising and content, advertising and content measurement, audience research and services development
Store and/or access information on a device
Your personal data will be processed and information from your device (cookies, unique identifiers, and other device data) may be stored by, accessed by and shared with 135 TCF vendor(s) and 65 ad partner(s), or used specifically by this site or app.
Some vendors may process your personal data on the basis of legitimate interest, which you can object to by do not consent. Contact our platform customer service, you can also withdraw your consent.
{"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"}}
20Cr2Ni4A is a high-quality structural alloy steel known for its exceptional strength, toughness, and hardenability. This carburizing steel offers superior mechanical properties compared to standard alloy steels, making it ideal for demanding industrial applications.
Key Characteristics
High strength and excellent toughness
Superior hardenability properties
General cutting and cold deformation plasticity
Poor weldability characteristics
Optimized carburizing process reduces surface residual austenite
Chemical Composition (%)
Grade
C
Si
Mn
P
S
Cr
Ni
20Cr2Ni4A
0.17-0.23
0.17-0.37
0.30-0.60
≤0.03
≤0.03
1.25-1.65
3.25-3.65
Mechanical Properties
Grade
Tensile Strength (Mpa) min
Yield Strength (Mpa) min
Elongation (%) min
Reduction of Area (%) min
Hardness max
Impact Strength (J/cm²) min
20Cr2Ni4A
1483
1292
13
57
434HB
75
Heat Treatment Process
Quenching: First heating 880°C; Second heating 780°C; Coolant: Oil
Tempering: Heating temperature 200°C; Coolant: Water, Air
Forging performance: Heating temperature 1200°C, Initial forging 1150°C, Final forging above 850°C with slow cooling
Delivery Conditions
Available in heat treatment states (Normalizing, Annealing, or High Temperature Tempering) or non-heat treated condition as required.
Applications
20Cr2Ni4A is specifically designed for large cross-section carburized components requiring exceptional strength and toughness:
Large gears and transmission systems
High-strength shafts and bearings
Conditioning components
Oil drilling equipment components
Mining claws and cone bodies
Automotive and tractor engine parts
Pinions, piston rings, ring gears, and crankshafts
Available Products
We supply comprehensive 20Cr2Ni4A forged products including:
Forged round bars and square bars
Custom forged shafts and blocks
Complete size range from 12-380mm diameter
Product Images
Why Choose Our Steel Products
Quality Assurance
Materials sourced exclusively from government-owned steel mills with ISO 9001 certified quality management systems.
Timely Delivery
Priority processing for all orders with shortest possible lead times for both raw and finished materials.
Value-Added Services
Comprehensive support including metal cutting, sizing, machining, heat treatment, and custom sawing services.
Flexible Ordering
Orders of any size or length with unique inventory of specialty steels and fast shipping.
Contact us today for 20Cr2Ni4A forged round bars, square bars, shafts, and blocks. We provide quality special steel for all industrial applications with service that exceeds expectations.
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...
