30CrNiMo8 Hot Forged Alloy Steel Round Bar with Polished Surface and OD 6-630mm

Minimum Order Quantity 1 Ton
Price US $966-1,199 / Ton
Product Details
Diameter 13 - 300mm Length 6m Or Custom
Carbon Content 0.26-0.34% Manganese Content 0.50-0.80%
Phosphorus Content ≤ 0.025% Sulfur Content ≤ 0.035%
Silicon Content ≤ 0.04% Nickel Content 1.8-2.2%
Chromium Content 1.8-2.2% Molybdenum Content 0.3-0.5%
Hot Deformation Temp 850-1100°C Normalizing Temp 850-880°C
Soft Annealing Temp 650-690°C Quenching Temp 830-860°C
Tempering Temp 540-660°C
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30CrNiMo8 Alloy Steel Round Bar

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Polished Surface Steel Round Bar

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OD 6-630mm Hot Forged Round Bar

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Product Description
30CrNiMo8 / 1.6580 / 30CND8 Hot Forged Alloy Steel Round Bar

High-performance alloy steel round bar designed for heavy-duty industrial applications requiring exceptional strength and durability.

Product Specifications
Diameter 13 - 300mm
Length 6m or custom cutting as requested
Grade Alloy Steel
Our Service Cutting, polishing, packing, heat treatment
Brand BAOSTEEL, XINGCHENG, DSS, CHONGQING, XNSS, HLXT, etc.
Standard GB, ASTM, JIS, EN, DIN
Company Type Storage company and process service
Material Characteristics

Alloyed structural steel with medium hardenability designed for heavy duty components, characterized by high elasticity and strength properties reaching over 1560 N/mm² at small diameters. When softened, the hardness reaches max. 248 HRB. It is also characterized by its resistance to variable loads and impacts. The material is not suitable for welding and ultimately requires additional preheating.

Chemical Composition
Grade C Mn P S Si Ni Cr Mo
30CrNiMo8/1.6580 0.26-0.34 0.50-0.80 ≤ 0.025 ≤ 0.035 ≤ 0.04 1.8-2.2 1.8-2.2 0.3-0.5
Equivalent Steel Grades
European EU EN 30CrNiMo8
Germany DIN, WNr 30CrNiMo8
Japan JIS SNCM431
France AFNOR 30CND8
England BS 823M30
China GB 30Cr2Ni2Mo
Russia GOST 3KH3M3F
Inter ISO 31CrNiMo8
Heat Treatment Parameters
Hot plastic deformation 850-1100°C
Normalizing 850-880°C
Soft Annealing 650-690°C
Quenching 830-860°C
Tempering 540-660°C
Applications

Grade 30CrNiMo8 is used for production of heavily loaded parts, shafts and drive axes, steering shafts, crankshafts of engines, screws and elements exposed to temperatures in the power industry.

30CrNiMo8 steel is used for automotive and general components which require high demands on strength and toughness and good hardenability. It is especially suitable for heavy-duty parts in the aviation, automotive and military industries.

Applications include permanently stressed components with large cross sections for automotive and mechanical engineering. For economic performance under severe dynamic stress, parts must be designed for optimum strength or toughness.

Company Information

Our company specializes in all kinds of round steel, including materials from major steel mills such as Tiangang, Shandong Luli Steel, Rongcheng Steel, Handan, Laigang, Jiyuan Steel and other major steel mills. We are designated agents for excellent special steel in Tianjin, with monthly sales of 40,000-60,000 tons of various steel products.

Our Capabilities
  • More than 4 warehouses for stock management
  • Approximately 30 product grades maintained in stock long-term
  • Over 800 sizes available to ensure short delivery times
  • Dedicated processing warehouse for steel round bar processing including cutting, polishing, and heat treatment
  • Global sales network serving various industries including machinery, standard parts, automobiles, gears, forging, and hardware tools
Popular Steel Grades We Manufacture

We produce a comprehensive range of steel grades including EN series, C series, S series, SAE/AISI standards, BS970 specifications, ASTM standards, DIN grades, and GOST materials to meet diverse industrial requirements.

Products Show
30CrNiMo8 Hot Forged Alloy Steel Round Bar with Polished Surface and OD 6-630mm 0 30CrNiMo8 Hot Forged Alloy Steel Round Bar with Polished Surface and OD 6-630mm 1 30CrNiMo8 Hot Forged Alloy Steel Round Bar with Polished Surface and OD 6-630mm 2 30CrNiMo8 Hot Forged Alloy Steel Round Bar with Polished Surface and OD 6-630mm 3 30CrNiMo8 Hot Forged Alloy Steel Round Bar with Polished Surface and OD 6-630mm 4