AISI 4330V Roller Reamer Manufacturer | Oil Drilled Roller Reamer for Downhole Drilling | HHF
- HHF
- HENAN
- 45DAYS
- 200pcs per month
HHF supplies AISI 4330V oil drilled roller reamers forged on a 10,000-ton press, with 319-390HB hardness, ≥1034MPa yield strength, and API Q1 certification for abrasive downhole drilling conditions.
Why Roller Reamers Fail Downhole, and What HHF Does Differently
Roller reamer breakdown is not polite. It usually happens when abrasive material is being formed after hours of vibration and high torque. One of the most common scenarios is a rig making a planned less trip. After a detailed analysis, we find the design was not usually in the wrong, whereas it was more often the steel that was of low quality. The main culprits were the lack of hardened material, impact toughness that appeared quite good on the paper but disappeared in the core, and hardness that was fine on the surface but fell quite quickly 10 mm underneath.
HHF aims mainly at that segment. The roller reamer AISI 4330V oil we make is based, initially, on forging raw materials but not on a lower-rated substitute that just happens to match the required chemistry.
4330V type steel has a combination of toughness and strength that is ideal for the demanding conditions such as in high-torque reaming, and we forge it to 10,000 tons hydraulic press for the internal structure being worked up to the proper level before any machining is done.
Yield strength of the material is ≥1034 MPa (150 KSi), a high tensile property. Surface hardness level is from 319-390 HBW that is a very appropriate hardness when formation contact is involved. Impact resistance is on average about ≥48J at minimum ≥41J so that sudden heavy loads do not crack it.
Each batch passes through the National Class II laboratory without exceptions. We have a very simple motto: every product has to be measured before being shipped. Furthermore, since we are Q1 API certified, your decision can be based on more than just our assurance. If, on the other hand, you are still not sure and you need a kind of proof before placing an order, just ask for inspection reports of the samples or simply come for a look at the lab. We would rather that you check.
Advantages of HHF AISI 4330V Roller Reamers Products
It is useful to have some information about how the reammer is manufactured. The 4330V steel is our forge product which we produce by means of our 10,000-ton press. This way, we gain more internal soundness than, for example, a cast or a low-ratio forged part. Grain structure becomes more refined and also porosity is closed. The result is that you have a component that behaves in the same manner under load.
Heat treatment also plays a major role. We cannot possibly run a single fixed cycle across all sizes and say job's done. Instead, the cycle of heat treatment is exactly aligned with the reamer body section thickness and thus, the reason why hardness and toughness are maintained uniform whereas surface core property is being changed. This has a greater effect than the people realize on a tool that is subjected constantly to compression and torsion.
We, among many other companies who choose to keep everything in-house, thoroughly check for things like chemical composition, mechanical properties (strength and hardness), etc.
You can be very proud if your piece passes the impact test which shows it is at least 48JI average, all this happening here at our labs! While a number of suppliers outsource this kind of work, they miss out on actually being able to get the results early enough so that any changes can be made if necessary. We, however, do it this way!
Besides, since all the steps: forging, heat treatment and machining are carried out within the same premises, there is no argument between suppliers regarding the party responsible for making a correction when needed.
It is only one party who is responsible for the whole chain of operations!
AISI 4330V Oil Drilled Roller Reamer
Customization of roller reamer solutions
Different hole sizes mean different reamer needs. Reamer requirements vary with formation characteristics, bit-hole diameter differences, and BHA (Bottom-hole Assembly) configuration. Our skilled engineers assess your needs in detail from material selection, dimensions, to performance specifications and tailor a solution that matches your specific field conditions instead of a generic catalog offering. Variations in coupling type, cutter layout, rock hardness are all accommodable, different cutting styles etc. Besides, we also prepare the paperwork your engineering team requires in order to approve it.
Chemical Composition
| C | Si | Mn | Cr | Mo | Ni | V | Cu | P | S |
|---|---|---|---|---|---|---|---|---|---|
| 0.28-0.34 | 0.10-0.40 | 0.60-1.00 | 0.60-1.10 | 0.35-0.65 | 1.65-3.10 | 0.05-0.15 | ≤0.35 | ＜0.015 | ＜0.015 |
P+S＜0.025
Mechanical Properties
| Yield Strength (MPa) | Tensile Strength (MPa) | Minimum Elongation (%) | Reduction of Area (%) |
|---|---|---|---|
| ≥150Ksi (1034MPa) | ≥160Ksi (1103MPa) | ≥14 | ≥45 |
Impact power (Charpy impact power): average value ≥48J, single minimum value ≥41J
Surface hardness: 319-390HB
Quality Control You Can Verify
We mean business when we talk about Quality Control.
We have been given API Q1 certificate and National Grade 2 (Chemical & Physical Lab) which means that quality is part of who we are.
Lab is not just a backroom operation that supports manufacturing. In fact, the Chemical & Physical Laboratory is part of the core R&D & QA activities.
It is only after thorough analysis of mechanical features, physical properties, chemical composition, and functionality that a complete verification is done to release a batch.
Whether it is a plain drill collar or a turbo shaft we follow the same strict quality requirements.
Exceed international standards or be compliant at least. Follow customer technical specifications or provide a well-supported reason for deviation before shipping.
Warranty and After-Sales Service
Every AISI 4330V roller reamer we deliver comes with a one-year warranty that covers manufacturing defects of material, forging and heat traitement from the date of delivery.
If an irreparable damage has definitely happened to the reamer during that period we will decide between repair of the damaged product, replacement or credit note according to what the contract stipulates in this regard.
Questions regarding technical matters are answered at the latest within 1 working day.
Where an overseas customer and the seller agree on the need to have a third party present such as SGS or BV, the parties can jointly request the inspection.
Keeping the records of the first order or the spare parts can prevent anyone having to recreate an original drawing, and ensure the product meets the specification.
Logistics and Delivery
Roller reamers are heavy and very exacting tools, the transport of which without prior planning leads the machine to be completely out of order. We use seaworthiness packing and additionally do anti-rust treatment on machined surfaces along with connections for the protection of a tool. Lifting and securing arrangements for larger assemblies are settled in advance by coordination between buyer and forwarder.
Exports are primarily through Qingdao, Shanghai or Tianjin ports under FOB, CIF or DAP. Photos of the packing, measurement records, and inspection certificate go with the goods to the port, so that customs clearance does not become a separate problem and delay the shipment.
Means of payment
Normally we expect a deposit of 30% and the rest of 70% to be paid before delivery. Long-term cooperation and repeat business cases are open to flexible terms such as a confirmed irrevocable letter of credit upon arrival (sight L/C) or partial payment by bank documentary credit (T/T or L/C). Both are acceptable and the proforma invoice will list all details after the agreement before the production starts.
About HHF
Henan Heavy Forging Co., Ltd. is a leading forging enterprise that has been specializing in heavy forging from raw materials to large forgings for about a decade now. The forging factory covers about 150 acres or 100,000 square meters. The three large open-die forging lines feature a core of a 10,000-ton hydraulic press, a huge forging machine. Two die forging machines are also installed there. Apart from large scale CNC lathes, heat treatment line and a classII national laboratory that supports the testing and control functions of the production and the quality, this unit has the most up-to-date facility. The company's production capacity is reaching 50,000 tons of different large forgings. In some cases single pieces can reach 30 tons in weight.
HHF was one among the 1,200 companies that the state selected as high-level technology enterprises, which were also called national "high and new" technology enterprises. It has been authorized by many agencies like API Q1, API 7-1, CSSC, ISO 9001:2008, ISO TS29001, etc. Exporting to more than 25 different countries such as the United States, the United Kingdom, France, Italy, Austria, Russia, the Middle East, Africa and South America including Singapore, its forging parts are being used in a range of industrial machinery, petrochemical, mining, power generation, marine industries and other engineering fields.
Frequently Asked Questions
What is your quotation lead time?
Usually up to 3 working days after receiving requirements and critical dimensions from you.
How is quality controlled?
A dedicated QA team checks production from receiving a raw material through packing. New customers usually will receive running a sample, a small batch, and then mass orders.
Can I visit your factory?
Yes. Our technical team will be available for discussing your requirements in person. We are always ready for a visit.
What is the production lead time?
Forging, rough machining, Q+T, and final machining. Normally 45 days.
What are your payment terms?
30% down payment to start, 70% before delivery.
What material grade is used for this roller reamer?
AISI 4330V. Your metallurgy department will assess your requirements and advise if other grade is better.
What is the hardness and strength of this reamer?
Surface hardness 319-390 HBW, the yield tensile strength is 150 KSi with impact energy of 48J average and one minimum of 41J.
Can you provide the roller reamer along with a test report?
Of course we can. The chemical composition, mechanical properties and hardness are all verified in our National Class II laboratory and the reports are packed together with the items.
What warranty does it come with and how do you handle claims?
It's 12 months from the date of delivery, and covers the defects such as material, forging, heat treatment.
Claims are first reviewed by cross checking with the original inspection records, and after confirmation, the issues are resolved by repair, replacement or credit.
Through which ports is your shipping? What is your shipping terms?
Qingdao, Shanghai and Tianjin through FOB, CIF, DAP. Well packaged and rust-resistant treatment on machined surfaces.
Ready to Start Your Roller Reamer Project?
Send your drawing, material grade, dimension, and quantity through the inquiry form below. Our engineering team will review it and come back with a quotation within three working days. If the project is still early, share what you have and we will help move it forward. Material selection, heat treatment requirements, inspection standards, all fair game for discussion before you lock the spec. Fill in the form at the bottom of this page, and we will tell you exactly what we can do and how we will verify it.
