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30CRMOV9 / 1.7707 ALLOY STEEL ROD

30CrMoV9 is a steel which in general is intended for the fabrication of quenched and tempered parts, which are generally machined and subsequently nitrided.

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Steel Round Rod

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30CRMOV9 / 1.7707 ALLOY STEEL ROD

Product introduction

30CrMoV9 is a steel which in general is intended for the fabrication of quenched and tempered parts, which are generally machined and subsequently nitrided. The alloy 30CrMoV9 is usually produced by EAF /VD /LF followed by electroslag refining (ESR) if necessary for special purpose. Bars and, where applicable, forgings are subjected to ultrasonic examination based on the different level according to the buyers’ requirements. Bars are usually supplied bright in the annealed condition, or bright annealing specially.

Technical data

CHEMICAL COMPOSITION OF 30CRMOV9

C	Mn	Si	P	S	Cr	Ni	Mo	V
0.26-0.34	0.40-0.70	0.40 max	0.035 max	0.035 max	2.30-2.70	0.60 max	0.15-0.25	0.10-0.20

MECHANICAL PROPERTIES OF 30CRMOV9

Process	Diameter(mm)	Tensile Strength Rm (Mpa)	Yield Strength Rp0.2 (Mpa)	Elongation A5 (%)	Impact Value Kv (J) Room Temperature
QUENCHED AND TEMPERED	160 max	900 min	700 min	12 min	35 min
QUENCHED AND TEMPERED	160-330	800 min	590 min	14 min	35 min

PHYSICAL PROPERTIES OF 30CRMOV9

Youngs module (GPa)	Poisson´s ratio (-)	Shear module (GPa)	Density (kg/m3)
210	0.3	80	7800
Average CTE 20-300°C (µm/m°K)	Specific heat capacity 50/100°C (J/kg°K)	Thermal conductivity Ambient temperature (W/m°K)	Electrical resistivityAmbient temperature (µΩm)
12	460 - 480	40 - 45	0.20 - 0.25

HEAT TREATMENT OF 30CRMOV9:

Soft Annealing: Heat to 680-720oC, cool slowly. This will produce a maximum Brinell hardness of 248.
Nitriding:
Gas/plasma nitriding temperature (gas, salt bath): 570-580oC
Gas/plasma nitriding temperature (powder, plasma): 580oC
Surface hardness after nitriding: 800 HV
Hardening:Harden from a temperature of 850-880oC followed by oil quenching.

TEMPERING OF 30CRMOV9:

Tempering temperature: 570-680oC.

FORGING OF 30CRMOV9:

Hot forming temperature: 1050-850oC.

AVAILABLE SHAPES :

Black bar /Flat bar / Square bar /Pipe, /Steel strip, /sheet
Bright – peeled + polishing, centerless grinding
Forged – ring, tube, pipe casing, discs, shaft

TYPICAL APPLICATIONS OF 30CRMOV9:

Alloy structural steels are widely used in the filed of ship, vehicle, airplane, guided missile, weapons, railway, bridges, pressure vessel, machine tools, mechanical components with a bigger sectional size and so on., Mechanical gears, gear shaft, main axis, valve rod, Mechanical parts – connecting rod, bolt and nut, Multidiameter shaft, Pressure vessel, seamless pipe

Factory video

Shandong Mingding Supply Chain Management Service Co., Ltd. was established in 2013, focusing on the production, processing and trade of metal materials. We have a professional team to provide quality service, we sincerely welcome customers at home and abroad to visit our company for guidance and long-term cooperation.

Warehouse storage

The company has the most advanced production equipment and automatic control system, to ensure the most reliable product quality. In addition, we also have a professional international trade and logistics team. With quality products and excellent service, we have established a large number of long-term customers all over the world.

Packing and delivery

To better ensure the safety of your goods, professional, environmentally friendly, convenient and efficient packaging services will be provided.

Production Technology

Our main products include high quality carbon steel, stainless steel products,galvanized steel products, aluminum and copper. We can also provide cutting, punching, bending, polishing, shearing, wire drawing and other related service.

Honor

Application

Our company is set production processing and trade as one. The company has the most advanced production equipment and automatic control system, to ensure reliable product quality and sufficient supply capacity. Our main products are stainless steel, silicon steel, galvanized steel, carbon steel, aluminum products and other series. Applicable to engineering, coal mining, shipping, aviation, boiler, machinery, military and other fields. We sincerely welcome customers from all over the world to visit our company to discuss long-term cooperation.

Architectural field

Automotive field

Aviation field

Chemical industry field

FAQ

How do you package the product?

The inner layer is covered with waterproof paper, packed in iron and secured by fumigated wooden brackets. It can effectively protect products from corrosion in the process of sea sample transportation.

Are the products inspected before shipment?

Of course. All our products go through strict quality tests before they are packed. Those that fail will be destroyed.

Can I visit your factory?

Of course. We welcome customers from all over the world to visit our factory.

What certifications have your products passed?

We have ISO 9001, SGS, EWC and other certifications.

Can you provide samples?

Of course, we can send samples all over the world. Our samples are free of charge, but the customer needs to bear the Courier charge

What is the loading port?

Normally, we ship from Shanghai, Tianjin, Qingdao and Ningbo ports. You can choose other ports according to your needs.

Steel Round Rod