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China Forged step bar shaft round bar manufacturer


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Forged step bar shaft round bar 

Price: 100.0 USD 
Payment Terms: T/T 
Special Groups: Forged rod (4)
forging & casting (28)
forged step bar (3)
Place of Origin: Shaanxi, China (Mainland) 
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Product Detail

Model No.: TOP-Forging-01
Production Capacity: 200Ton/month
Delivery Date: 30 days
Usage: Oil & Gas
Condition: Finish machining
Type: Shaft Round bar
Means of Transport: Ocean
Packing: for sea shipment
Material: AISI 4145H carbon steel
Heat treatment: Quenching & Tempering

The AISI 4145H Forged round bar and step bar is used for drilling tools in oilfield, the size of the forging is from 5'' to 36'' OD as per requirement

Forging & Forged bar and step bar & Forged shaft

Equipped with a large batch of heavy equipment such as 1000T & 2500T free- forging oil press machines, 1600T & 4500 T hydraulic forging machines, quenching & tempering furnace, deep hole & boring machine and grinding machine.

The main products include mandrel bar, pipe moudle, roller, stabilizer, forged shaft, forged ring etc which will be made according to different industry standard such as GB, ASTM, DIN, API, ISO and so on. And the material covers alloy steel, bearing steel, moudle steel, stainless acid-resistant steel, carbon steel etc.


High quality open die forging
Alloy Steel: 4145 H, 4130, 4140, 4340 etc.
Carbon Steel: CK35, CK45 etc.
Stainless Steel: 1Cr13, 2Cr13
Tool Steel: H1, H13

Mechanical properties of AISI 4145H Forged bar:

Tensile Strength





Yield Strength



Reduction of Area %



(ASTM A370E 112:5)


Impact Value



Impact Value(Charpy-V)J -20°C



ZZ TOP OIL TOOLS is the professional manufacturer for the drill stem testing tools and surface testing equipment. All the DST tools are conformed with NACE MR 0175 with traceability,and the DST tools can be worked in H2S & CO2 above 175 F and full H2S, also with the skilled and experienced engineers, we can design the drill stem testing tools as per customer's well condition. Moreover, we supply the training in our factory and operation instruction at the well site. The DST tools are exported to USA, Colombia, India, Pakistan, Iran, Brazil etc. and enjoy the good reputation from the customers.

As the manufacturer, we produce below items:

-DST tools- Full bore retrievable packer, circulating valve, select tester valve,safety valve and flowhead etc.

-Wellhead equipment such as BOP, X-mas tree, Choke manifold, kill manifold, drilling spool, casing head and other valve & flanges

As the distributor, we are working with large rig companies and heavy equipment manufacturers for the below products:

-Rig parts from RG,BOMCO,SJ,Hong Hua,KR etc,such as mud pump,rotary table, hook & block, swivel, crown block and consumable parts

- BOP and wellhead parts from Rongsheng,Shenkai

- -Downhole tools such as stabilizer, stabilizer forging, reamer, X-over sub and  etc

- Handling tools

Forged step bar for oilfield drilling tools

Ms. Elaine
skype Ms. Elaine

Tel: 86-29-81779342
Mobile: 136 2920 7466
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Company Info

XI'AN ZZ TOP OIL TOOLS CO.,LTD [China (Mainland)]

Business Type:Manufacturer, Distributor/Wholesaler, Service
City: Xi'an
Province/State: Shaanxi
Country/Region: China (Mainland)

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zztopoiltools:   skype

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