M42*3*240 25Cr2MoVA steam turbine customized Special Two-head double head bolt stud

• Customization: Available
• Certification: ISO
• Color: Customized
• Model NO.: 25Cr2MoVA
• Standard: National
• Type: Connection
• Material: Alloy
• Industry: Power Plants
• Condition: Brand New
• Surface: Anti-Rusting
• Size: Customized
• Delivery: by Sea/Air
• Packaging: Wooden Box/Cartons
• Processing: Drawing Basis
• double head bolt: M56*4*210 20Cr1Mo1VNbTiB
• bolts: M16*110 8.8grade
• Special double head bolts: M12*205 2Cr12NiMo1W1V
• bolt: M42*3*130 25Cr2MoVA
• two-head bolts: M5*20 2Cr12NiMo1W1V
• stud bolts: M36*3*180 25Cr2MoVA
• studs: M24*55 25Cr2MovA
• Special double head studs: M30*80 20Cr1Mo1VNbTiB
• Transport Package: Cartons
• Specification: Customized
• Trademark: Yoyik
• Origin: Deyang, China
• Production Capacity: 10000 Pieces/Year
• Package Size: 50.00cm * 25.00cm * 10.00cm
• Package Gross Weight: 5.000kg

Product Description

Product Description

 

As a key component of the connection and support structure, two-head stud bolt play a crucial role in ensuring the normal operation and efficient performance of steam turbines. stud bolts are mainly used in high-temperature parts of steam turbines, such as high-temperature blades, high-temperature cylinder bodies, etc., to maintain the stability of key parts of the turbine and ensure the normal operation of the system.

The high-temperature stud bolt used for steam turbines are made of special high-temperature alloy materials, which have excellent high-temperature strength, anti loosening, corrosion resistance, and oxidation resistance.

The commonly used special high-temperature alloys for steam turbines include 15CrMoA, 35CRMOA, 40CrMoV-5, 45Cr1MoV, 0Cr18Ni9, 1Cr11Co3W3NiMoVNbNB, 1Cr18Ni9Ti, 20Cr1Mo1VNbTiB, 20Cr1Mo1VTiB, 25Cr2MoVA, 2Cr11Mo1NiWVNbN, and 2Cr12NiMo1W.

The manufacturing of high-temperature stud bolts requires precise process control to ensure their precise dimensions and meet high quality standards. Quality control is crucial throughout the entire manufacturing process. By using various inspection techniques such as size measurement, metallographic microscopy, ultrasonic testing, etc., ensure that each screw meets the specification requirements.

 

Technical Specification of High temperature Stud Bolts
Product size	Customizable to drawings or samples
Optional Materials	15CrMoA
	20Cr1Mo1VNbTiB
	25Cr2Mo1VA
	25Cr2MoVA
	35CrMoVA
	40CrNiMoA
	45Cr1MoV
	2Cr11Mo1NiWVNbN
	2Cr12NiMo1W1V
	1Cr11Co3W3NiMoVNbNB
	1Cr18Ni9Ti
Strength	Above level 12.9
Heat treatment	According to the drawing requirements
Surface treatment	Nitriding, galvanizing, etc
Accuracy	0.02mm
Special processes	According to the drawing requirements
Quality inspection	Non destructive testing

Product Features of High-temperature Stud Bolts

1. It has excellent high-temperature resistance and can work stably for a long time in high-temperature environments.

2. High strength, able to withstand high pressure and high temperature force loads during turbine operation.

3. It has good anti loosening performance and can maintain stable fastening force in vibration environments.


 

Wide Application of High-temperature Stud Bolts

High temperature stud bolts are widely used in various key parts of steam turbines, including the following aspects:

1. Used to fix the blades and ensure reliable connection between the blades and the rotor.
2. Used to fix the cylinder head to ensure sealing and structural stability.
3. Used to link the pipelines of various steam turbine systems to ensure the safe operation and sealing performance of the pipeline system.
4. Used for installing accessories such as pumps and valves in the steam turbine to ensure a secure connection with the turbine body.

 

Detail Photos

 

Related Products

Yoyik offers different types of spare parts for steam turbine and generators:

Regulating Pre-inlet Valve Disc
Special high-temperature slotted nut 3"-8UN 45Cr1MoV
Partition fixing screw
Nozzle type positioning pin
Adjust Gasket
O-RING
ACTIVE GEAR
DOWEL KEY
spiral wound gasket
NEEDLE BEARING
BFPT Cylinder Horizontal Bolt
sealing key
MAIN STEAM CONTROL VALVE
Flange Bolt
PLUNGER COVER
Oil resistant rubber plate gasket Ф368*Ф591*0.8
coupling reamer
LP seal desuperheating water nozzle
High temperature nut M22 2Cr11Mo1NiWVNbN
GLAND RING




 

Packing and Shipping

Standard & solid packaging ensures your goods safety.

Various professional packages at your choice.


Multiple choice of reliable and cost-effective shipping methods available.

Company Profile

Dongfang Yoyik Engineering Co., Ltd is located in Deyang, Sichuan, China's heavy equipment base, was founded in 2004. The company is a professional power plant spare parts manufacturer and supplier. Our products are applicable for many thermal power plants, hydropower plants, metallurgic industrial power plant, cement plant power house, aluminum plant power house, and coal mill power plants.



From advanced precision electric elements and components to highly-customized metal items, you can find all the needed for a power plant from Yoyik.

Yoyik is the Exclusive Agent of W.M. Nugent CO Inc for selling Nugent filter elements and filtration system products in China. The company also has great advantages in of many hydraulic products, including pumps, valves, sealing materials, etc. the brands include Eaton, Vickers, Moog, star, copaltite, temp-tite, 707, etc. 

 

 

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FAQ

- ORDER NOTES -

√ Model Selection
Before purchasing, please ensure that the model specifications you provide are complete or that the drawings have been drawn so that you can provide timely and accurate quotations.

√ Quality Assurance
We promise to provide high-quality products and after-sales service. If there are any quality issues, please contact us promptly.

√ Secure Transactions
We sell on MIC, provide a secure and reliable trading environment, and accept multiple payment methods to facilitate your purchase.

 

- FAQ -

- Are you trading company or manufacturer?
We are factory located in Deyang, China.

- How long is your delivery time?
Generally it is 2-5 days if the goods are in stock. Or it is 7-21 days if the goods are not in stock, it is according to quantity.

- Do you provide samples? Is it free or extra?
Sorry we do not offer samples.

- What price terms do you accept?
Our company can accept all trading manners, eg. EXW, FOB, CIF etc

- What payment terms do you accept?
We accept T/T.