China DIN 41cr4 1.7035 SCR440 5140 Alloy Carbon Round Steel Bar

DIN 41Cr4, 1.7035 ,JIS SCr440, ASTM 5140 Alloy carbon round steel bar
1.Grade: DIN 41r4, JISSCr440, ASTM 5140,GB 40Cr
2. Material Number: 1.7035
3. Product Name: DIN 41Cr4, 1.7035 ,JIS SCr440, AST 5140 Alloy carbon round steel bar

4.Designation by Standards

Mat. No.DINENAISIBSJIS1.703541Cr441Cr45140530M40SCr440

5. Chemical Composition (in weight %)

CSiMnCrSPVWOthers0.35-0.45max. 0.400.60-0.900.90-1.20max.0.035max.0.025---

6. Mechanical Properties in Hardening and Tempering Condition

Diameter (mm)0.2 % proof stress (N/mm2)Tensile strength (N/mm2)Elongation (%)Reduction of area (%)Notch impact energy (ISO-V) (J)up to 168001100-120010303517-40660900-110012354041-100560800-950144040

Size of 41Cr4
- As Forged

Size: Dia.80-1,000mm
Length: 3,000-10,000mm

Size: 150x150-600x600mm
Length: 3,000-8,000mm
(Forged Flat Bars, Shafts, Rollers and Blocks can be Customized)
- As Rolled

Size: Dia.10-300mm
Length: 3,000-10,000mm(can be Customized)
Surface Condition of 1.7035 Steel
Black, Rough Machined, Turned
Hardness of 41Cr4 Steel
Annealed (+A): max 207HB
Treated to improve shearability (+S): max 255HB
Mechanical Properties of 1.7035 / 41Cr4 Steel
Tensile strength: 980MPa
Yield point: 785MPa
Percentage reduction of area after fracture: 45%
Elongation after fracture: 9%
Impact test (+20°C): Transverse - 22J; Longitud - 30-35J
Quenched and Tempered (+QT) of W-Nr 1.7035 Steel
1. Heat din 1.7035 steel carefully to 850°C;
2. Soak at this temperature then quench in the oil;
3. Temper as soon as 41Cr4 steel reach room temperature (20°C);
4. Heat uniformly to the suitable temperature of 520°C;
5. Withdraw the material from the furnace and cool in the air.
Material Photo:
Applications of DIN 41Cr4 Steel
After quenched and tempered,1.7035 steel can be used in the manufacture of medium speed,the load of parts,such as machine tools gear,shaft,worm,etc. Atfer QT and high-frequency surface hardening,41Cr4 steel is always used in the manufacture of high surface hardness,abrasion resistance parts. After quenching and middle temperature tempering,this material is usually used in the manufacture of overloading,medium speed impact of parts.
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
Company information:
Bozhong Group Mainly supply in forms of coil, sheet, plate, rod, bar, tube, pipe, beam, angle, flange, wire, strip, channel, etc., with various varieties, wide range of dimensions, high purity, stable chemical composition, high dimensional accuracy and excellent surface quality. The products are mainly used in the fields of industries such as automobile engineering, railway transportation, aviation, aerospace, machinery, petrochemical, energy, environmental protection, offshore, chemical, oil & gas, military, power plant, nuclear power, pressure vessel, boiler equipment, mold manufacture, etc.
steel coilsteel platesteel sheetsteel bar/rod steel round bar
steel flat bar
steel square barsteel pipe/tube ( welded or seamless ) steel round pipes
steel square pipes
steel welded tubes
steel seamless tubessteel stripsteel beamsteel anglesteel channelsteel flangeSteel wire

Bozhong Group can supply a variety of structural steel, high-strength steel, wear-resistant steel plate, boiler and pressure vessel steel, marine engineering and stainless steel plate in the thick steel and various European standard bars and pipes and profiles.Our global sales and service network throughout all around the world to ensure that the goods reach the customer in the shortest time.

We can follow your drawings and requirements, to provide you with oxygen cutting, plasma cutting and laser cutting and other processing services. You can also perform ultrasonic testing in accordance with EN10160 standard, EN10164 standard test Z15, Z25, Z35, weld bending detection, PWHT detection,etc.

We have ISO9001: 2000 quality management system certification, and obtain the quality certification from all the well-known certification company, including TuV / LRS / GL / CE and so on.

Special steel includes as below:
Boiler and pressure vessel steel
Pipeline steel
Bridge steel
Nuclear power steel
Structural steel
Die steel
High strength steel
Abrasion resistant steel
Weathering, corrosion resistant and fire resistant steel
High rise building steel
Shipbuilding and offshore engineering steel

FAQ:
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 don'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 you provide a sample for our testing before confirm the order?
A: Yes. We can provide sample to you for approval before you place an order to us. Free sample is available if we have stock.

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.
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Annie Wang
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