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Alloy Steel Round Bar

Trusted Exporter of Industrial Alloy Steel Round Bar

Alloy Steel Round Bar available in diversity of sizes in Big stock, we deliver Alloy Steel Round Bar with Exceptional sizes & Quality, can supply in small or large quantity.

Rythme Alloy is the most acclaimed manufacturer, exporter, distributor and supplier of industrial Alloy Steel Round Bar with required test certificates. Our material is certified to the highest industry standards. You can also Order small quantities, we will be happy to quote best price for small and large quantities & can typically deliver the Alloy Steel Round Bar in minimum time frame anywhere around the globe. Our broad product range makes your individual wishes possible and also meets the extraordinary demands.

Alloy Steel Round Bar specification

42CrMo4 Alloy Steel Round Bars
42CrMo4 Alloy Steel Round Bars, 300 to 800mm Diameter

Key Specifications/Special Features:

  • Material: SCM 440/4142/42CrMo4/42CrMo alloy steel
  • Grades: JIS SCM 440, ASTM 4142, EN 42CrMo4 and GB 42CrMo
  • Diameter: 12 to 300 and 300 to 800mm

Alloy Steel Bar, SCM420

Key Specifications/Special Features:

  • Steel round bar
  • Material: SCM420, SCM415, 20Mn-65Mn, 15CrMo-42CrMo, 20Mn2-40Mn
  • Size: 20-100mm, 100-800mm
  • Length: 3-6m
  • Standard: JIS, GB, ASTM
  • Delivery condition: rough turned+quenching and tempering

41Cr4/40Cr/ASTM5140/SCr440 Hot Rolled Alloy Steel Round Bars

Key Specifications/Special Features:

  • Material: hot rolled alloy steel
  • Steel grades: 41Cr4, ASTM5140, SCR440 and 40Cr
  • Technical conditions: GB/T3077-1999 (China) and ASTM A29/A29M-04
  • Length: 3 to 6m
  • Size: 12 to 800mm

GB 42CrMo Alloy Steel Bars with Higher Intensity, Good Fatigue Strength and Better Hardenability

ASTM 4140

Key Specifications/Special Features:

  • GB 42CrMo chemical composition:
    • C: 0.38 to 0.45
    • Si: 0.17 to 0.37
    • Mn: 0.50 to 0.80
    • S: ≤0.035
    • P: ≤0.035
    • Cr: 0.90 to 1.20
    • Ni: ≤0.030
    • Cu: ≤0.030
    • Mo: 0.15 to 0.25
  • Technique: forged
  • GB 42CrMo mechanical property:
    • Tensile strength σb: ≥1,080 (110)MPa
    • Yield strength σs: ≥930 (95)MPa
    • Elongation δ5: ≥12%
    • Hardness: ≤217HB
  • Sizes:
    • Diameter: 12 to 200mm
    • Hot rolling: 200 to 800mm
  • Flat bar:
    • Thickness: 10 to 100mm
    • Width: 50 to 500mm
  • Surface treatment: black, coated or galvanized, no flaw and burr or rust
  • Process: EAF + LF + VD + forge
  • Delivery condition: hot rolled, black, annealing and hardness: HBS=160 to 210, or hot rolled/forged + rough machined (black surface after Q/T) + turned (optional)
  • UT: to SEP 1924 C/c and D/d or according to customer’s request
  • Futures:
    • Compared with 35CrMo, the 42CrMo has higher intensity and better hardenability
    • Good fatigue strength and impact resistance
    • Good low temperature impact toughness
    • No temper brittleness
    • Usually used after tempered
  • Application:
    • Often applied for making important machinery parts, such as bearing, gear, connecting rod, transmission gear, supercharger gear, engine cylinder, spring and rotary shouldered connections (1,200 to 2,000mm) for petroleum industry and jar knocker
    • Substitute of hardened and tempered steel with higher chromium composition

4140 is a chromium and molybdenum alloy steel that has an excellent weight to strength ratio. It has a tensile strength of 150,000 psi, yield strength of 130,000psi and approximately 35-45% elongation.

C Cr Mn Mo P Si S
0.38-0.43 0.8-1.1 0.75-1 0.15-0.25 0.35 Max 0.15-0.35 0.04 Max

Alloy Steel Round Bar manufacturer, Stockholder & Supplier

We have a specialist dedicated Alloy Steel Round Bar team and can supply the following stainless steel grades in bar and round bar form with the following sizes in stock.

Alloy Steel Round Bar Production according to national and international standards (e.g. ASME, ASTM, API, EN, DNV, etc.)

We can produce according to Your Required Specification

Alloy Steel Round Bar uses & application:

We supply Alloy Steel Round Bar to Oil & Gas, Refineries, Fertilizers, Heat-Exchangers, Paper & Pulp, Pharmaceuticals, Chemicals, Water Treatment, Dairy, Sugar & Food Processing, Construction, Mining, Shipbuilding, Offshore, Defence, Ports, Railway, Nuclear Power, Power Plant, Cement, Government Org., Engineering Co., Oil Mills, and other industrial projects.