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    Material quality very good. we have cooperate more than 10 Years. They trade lots kinds of steel material. All material quality good. They duty for all material quality. We are planing continue cooperate with them in the future
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34CrNiMo6 Alloy Steel Round Bar with Polished Surface and High Tensile Strength in 20-380mm Diameter

  • 34CrNiMo6 Alloy Steel Round Bar with Polished Surface and High Tensile Strength in 20-380mm Diameter
  • 34CrNiMo6 Alloy Steel Round Bar with Polished Surface and High Tensile Strength in 20-380mm Diameter
  • 34CrNiMo6 Alloy Steel Round Bar with Polished Surface and High Tensile Strength in 20-380mm Diameter
  • 34CrNiMo6 Alloy Steel Round Bar with Polished Surface and High Tensile Strength in 20-380mm Diameter
  • 34CrNiMo6 Alloy Steel Round Bar with Polished Surface and High Tensile Strength in 20-380mm Diameter
  • 34CrNiMo6 Alloy Steel Round Bar with Polished Surface and High Tensile Strength in 20-380mm Diameter
  • 34CrNiMo6 Alloy Steel Round Bar with Polished Surface and High Tensile Strength in 20-380mm Diameter
Minimum Order Quantity 1 Ton
Price US $650-1,250 / Ton
Product Details
Material DIN 34CrNiMo6 Steel Grades 34CrNiMo6, 34CrNiMo, 34Cr2Ni2Mo
Technique Forging, Hot Rolled, Cold Draw Surface Black, Turned, Ground, Bright
Diameter 20-380mm (custom 4-800mm) Length 2000-13000mm (customizable)
Process EAF + LF + VD + Forged + Heat Treatment Carbon Content 0.30~0.38%
Chromium Content 1.4~1.7% Nickel Content 1.4~1.7%
Molybdenum Content 0.15~0.30% Tensile Strength 933~1011 N/mm²
Yield Strength 832~899 N/mm² Hardness ≤274~303 HB
Elongation ≥19~20%
Highlight

Polished Surface Steel Round Bar

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20-380mm Diameter Alloy Steel Bar

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High Tensile Strength 34CrNiMo6 Round Bar
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Product Description
34CrNiMo6 Forged Steel Round Bar
High-quality 34CrNiMo6 alloy steel round bars available in diameters from 20mm to 380mm, with custom sizes up to 800mm. Manufactured using advanced EAF + LF + VD processes with forging and heat treatment.
Product Specifications
  • Material: DIN 34CrNiMo6 steel round bar
  • Grades: 34CrNiMo6, 34CrNiMo, 34Cr2Ni2Mo
  • Manufacturing Techniques: Forging, hot rolled, cold draw
  • Surface Finish: Black, turned and ground, bright
  • Diameter Range: 20mm to 380mm (customizable 4-800mm)
  • Length: 2000mm to 13000mm or customized
  • Production Process: EAF + LF + VD + forged + heat treatment (annealed, normalized, Q+T)
Chemical Composition
C Si Mn S P Cr Ni Mo
0.30~0.38 0.17~0.37 0.40~0.70 ≤0.025 ≤0.025 1.4~1.7 1.4~1.7 0.15~0.30
Mechanical Properties
  • Tensile Strength: ≥933~1011 N/mm² (MPa)
  • Elongation: ≥19~20%
  • Yield Strength: ≥832~899 MPa
  • Hardness: ≤274~303 HB
  • Reduction of Area: ≥53~64%
  • Impact Energy (Akv): ≥117 J
  • Impact Energy (akv): ≥144~172 J/cm²
International Equivalent Grades
USA Japan Germany UK France International China
ASTM/AISI/SAE JIS EN DIN 34CrNiMo6 EN BS EN NF ISO 34Cr2Ni2Mo GB
Primary Applications
Gear shafts for vessels, vehicles, airplanes, weapons, railways, bridges, pressure vessels, and machinery. Commonly used for carburized gears, pinions, shafts, bearings, piston rings, ring gears, crankshafts, and transmission systems.
Available Stock Sizes
Round Bar Diameter: 12-380mm
Materials available in round bars, flat bars, plates, and blocks in various conditions: pre-hardened, hot rolled, annealed, quenched and tempered with surface finishes including black, pre-machined, grinding, and polish.
Packaging & Delivery
  • Packaging: Standard seaworthy packing or as customer required
  • Delivery Time: 20 days
Quality Assurance & Services
Quality Sourcing
Materials sourced directly from government-owned steel mills ensuring consistent quality and competitive pricing.
Timely Delivery
Priority treatment for all orders with shortest possible lead times for both raw and finished materials.
ISO 9001 Certified
Continuous improvement of integrated quality management system with regular audits and recertification.
Value-Added Services
Metal cutting, sizing, machining (blanking, milling, grinding), heat treatment, and sawing services available.
Product Gallery
34CrNiMo6 Alloy Steel Round Bar with Polished Surface and High Tensile Strength in 20-380mm Diameter 0 34CrNiMo6 Alloy Steel Round Bar with Polished Surface and High Tensile Strength in 20-380mm Diameter 1 34CrNiMo6 Alloy Steel Round Bar with Polished Surface and High Tensile Strength in 20-380mm Diameter 2 34CrNiMo6 Alloy Steel Round Bar with Polished Surface and High Tensile Strength in 20-380mm Diameter 3 34CrNiMo6 Alloy Steel Round Bar with Polished Surface and High Tensile Strength in 20-380mm Diameter 4 34CrNiMo6 Alloy Steel Round Bar with Polished Surface and High Tensile Strength in 20-380mm Diameter 5 34CrNiMo6 Alloy Steel Round Bar with Polished Surface and High Tensile Strength in 20-380mm Diameter 6 34CrNiMo6 Alloy Steel Round Bar with Polished Surface and High Tensile Strength in 20-380mm Diameter 7 34CrNiMo6 Alloy Steel Round Bar with Polished Surface and High Tensile Strength in 20-380mm Diameter 8 34CrNiMo6 Alloy Steel Round Bar with Polished Surface and High Tensile Strength in 20-380mm Diameter 9
Additional Product Range
Alloy Steel: 5140, 5115, 5120, 5130, 5145, 4118, 4130, 4135, 6150, 4142, 4720, 4320, E9310, 8620, 4340
Tool Steel: H13, 1.2344, SKD61, D2, SKD11, 1.2379, 1.2510, 01, SKS3, 95MnWCr5, D3, SKD1, 1.2419, SKS31, H21, SKD5, 1.2581, P20, 35CrMo7, 1.2738, 1.2316, M2
Bearing Steel: GCr15, 52100, SUJ1, SUJ2, 100Cr6, 1.2067, 55C, 8620, 4320, 9310, 440C, M50, 8620h
Spring Steel: 9260, SUP6, SUP7, 1.7108, 54SiCr6, 1.7102, 5155, SUP9, 1.7176, 5160, 1.7177, 6150, SUP10, 51CrV4, 1.8159
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