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GB Standard Hot Rolled Steel Bar EN 41CrAlMo7-10 1.8509 Bright Surface

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GB Standard Hot Rolled Steel Bar EN 41CrAlMo7-10 1.8509 Bright Surface

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Large Image :  GB Standard Hot Rolled Steel Bar EN 41CrAlMo7-10 1.8509 Bright Surface

Product Details:
Place of Origin: MAINLAND CHINA
Brand Name: UST
Certification: ISO 9001:2008
Model Number: EN 41CrAlMo7-10 / 1.8509
Payment & Shipping Terms:
Minimum Order Quantity: 3 Metric tons
Price: USD 800-2000 / Metric Ton
Packaging Details: In standard export packing and seaworthy material with rectangular shape bundle, covered with tarpaulin, in ontainers or in bulk, or upon request
Delivery Time: 15-35 days
Payment Terms: L/C, T/T, D/A, D/P
Supply Ability: 1000 Metric Tons per Month
Detailed Product Description
Matrial: Alloy Steel Standard: GB, ASTM, DIN,JIS
Grade: 41CrAlMo7-10 / 1.8509 Diameter: 4-1600mm
Length: Below 16 Meters Shape: Round Bar
Techniques: Cold Drawn; Hot Rolled; Cold Rolled; Forged Surface: Black, Bright, Polished, Peeled, Or Upon Request
Ultrasonic Test: 100% UT Passed Processing: Annealed Or Quenched And Tempered Provided
End: Beveled, Plain End As Required Quality Inspection: SGS, BV Etc.
Service: Cutting Service And 3rd Party Inspection Is Provided
High Light:

alloy steel round bar


hot rolled round bar



Chrome-aluminium structural steel with addition of molybdenum and high hardenability intended for nitriding, achieving hardness after thermo-chemical treatment above 900 HV. The best mechanical properties after machining are achieved in cross-sections of up to approx. 80 mm.


EN 41CrMoAl7-10 is used to manufacture parts or components that require surface sliding properties, high core hardness, heat resistance, relaxation, and corrosion.




The steel is used in the automotive and machine industries for diesel engine fuel pump parts, camshafts and crankshafts, cylinders, bushings, valve plates, moulds for pressing plastics, crankpins, grinding and milling spindles, piston rods, valve parts in superheated steam operation, e.g. flanges, gear wheels, pushers, bushings and cylinders of pneumatic machines.


SUPPLY RANGE OF of EN 41CrAlMo7-10 1.8509
-Dimension: Diameter 4-1600 mm, any length below 16 meters


-Delivery Conditions:

Cold drawn: 4-100 mm

Peeled: 30-160 mm

Grinded: 4- 600 mm

Turned: 130-1200 mm

Hot rolled: 12-320 mm

Hot forged: 130-1600 mm



-HOT rolled; Cold rolled; Forged; Cold Drawn

-Heat Treatment: Untreated, Annealing, N+T, Q+T

-Smelting: EAF+LF+VD (+ESR)

-Surface Finish: Black, Rough Machined, Peeled, Turned or upon request

-UT 100% passed

-Cutting service provided

-Third Party inspection is acceptable (SGS, BV etc.)



41CrAlMo7-10 Steel Round Bars (1.8509) Standard and Equivalency


  Britain France Italy Belgium Sweden Spain
Germany EN 41B
B.S. 905M39
AFNOR 40CAD6,12 UNI 41CrAlMo7 NBN 41CrAlMo7 SS 2940 UNE41CrAlMo7


Chemical Composition


Grade C Si Mn Cr P S Mo Al
1.8509 0.38-0.45 0.40 max 0.40-0.70 1.50-1.80 0.025 max 0.035 max 0.20-0.35 0.80-1.20



Mechanical properties of 41CrAlMo7-10, 1.8509 according to EN 10085


-Annealed condition +A - Hardness: <248 HB
-Heat-treated condition +QT:


Dimensions 16 - 40mm:
Tensile strength, Rm: 950 - 1150 MPa
Yield strength, Rp0,2: >750 MPa
Elongation, A: >11%
Impact resistance, KV: >25J


Dimensions 40 - 100mm:
Tensile strength, Rm: 900 - 1100 MPa
Yield strength, Rp0,2: >720 MPa
Elongation, A: >13%
Impact resistance, KV: >25J


Dimensions 100 - 160mm:
Tensile strength, Rm: 850 - 1050 MPa
Yield strength, Rp0,2: >670 MPa
Elongation, A: >14%
Impact resistance, KV: >30J


Dimensions 160 - 250mm:
Tensile strength, Rm: 800 - 1000 MPa
Yield strength, Rp0,2: >625 MPa
Elongation, A: >15%
Impact resistance, KV: >30J


-Surface hardness after nitriding - HV1: 950


Quality Assurance


Below inspection will be done in the production.
(1) ray detection---RT;
(2) ultrasonic testing---UT;
(3) Magnetic Particle Testing-MT;
(4) penetration testing-PT;
(5) eddy current flaw detection-ET

GB Standard Hot Rolled Steel Bar EN 41CrAlMo7-10 1.8509 Bright Surface 0


What we can offer?

-We offer a wide range of steel products in a wide variety of dimensions and executions, according to the common international specifications or customize.

-Machining and heat treatment are available.

-Also, we advise you in choosing the right materials.


Shape Available

  • Solid round bar
  • Flat bar
  • Square bar
  • Hexagon bar
  • Block
  • Plate
  • Sheet
  • Wire rod
  • Strip


Our Advantages

  • High mechanical property and quenching, enable the surface share equal hardness after deal with it
  • Good polishing and low roughness
  • Making the heat-treatment to harden condition before using it
  • Competitive price
  • Fast production lead-time
  • All the material are inspected with 3 times to meet the highly standards
  • Pure steel quality & stable quality to be guarantee



GB Standard Hot Rolled Steel Bar EN 41CrAlMo7-10 1.8509 Bright Surface 1



Available Size:
-Round: Dia. 4 -1600 mm
-Flat: T. 10-120 mm x W. 60-810 mm
-Block: T. 80-1200 mm x W. 100-1600 mm




1. Both T/T and L/C will be acceptable

2. Trade Terms: FOB, CIF, CFR

3. The delivery will be in 10-15 days if have stock; For customized items, the delivery will be negotiated by both parties

4. Shipping by sea freight from Shanghai Port (PRC) for Bulk orders, by airfreight or express for samples




Shanghai Unite Steel Trading Co., Ltd

We are committed to integrate engineering steel resources in china and serve the global engineering steel market. Our company has more than 15 years of experience in steel researching, production, managing and sales. And our team mostly are based on and worked in national famous steel enterprise.

In the aspect of resources and information, we have established cooperative and stronger relationship with nearly hundred enterprises, either state-owned or private owned in china.

What’s more, we have built long, deep and close business relationship with dozens of steel company, Sharing and holding equities with several steel enterprises. Because of the close cooperation with steel companies and our pioneering spirit, which can ensure us stay at the top competition, and ensure our customers get what they really want!




Q: Are you a manufacturer or merely a trader?
A: We are group of companies and owned manufacturer bases and trading company. We specialized in special steel which include alloy structural steel and carbon steel and stainless steel, etc. All material are with high quality and competitive price.

Q: How do you guarantee the quality of your product?
A: Firstly, we can provide the certificates from the third party, such as TUV, CE, if you need. Secondly, we have a complete set of inspection system and every process is checked by QC. Quality is the lifeline of enterprise survival.

Q: Delivery time?
A: We have ready stock for most of material grades in our warehouse. If the material doesn't have stock, the delivery lead time is about 5-30 days after receiving your prepayment or firm order.

Q: What is the payment term?
A: T/T or L/C.

Q: Can we visit your company and factory?
A: Yes, warmly welcome! We can book the hotel for you before you come to China and arrange our driver to our airport to pick you up when you come.




We are happy to answer your questions and make you an offer for these and other materials. Contact us now for more information.


Your Contact Person

Ms Chilli Ho

Phone/Wechat/Whatsapp +86-181-0187-5575

Skype: chilli.ho@outlook.com

Email: chilli.ho@shunitesteel.com

Contact Details

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Tel: +8615261689453

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