About Us
Factory Tour
Quality Control
Contact Us
Request A Quote
Home ProductsForged Steel Rolls

Forging AISI 4130 4140 4145 4330V Steel Hollow Bar

Good company with professional service and high quality. Delivered in time. Our most trusted partner for alloy steel pipes.

—— Brent

The P91 and P22 supplied from NEW FORCE fully satisfies requirement of our project in Brazil. Good to work with NEW FORCE team.

—— Nicolas

I'm Online Chat Now

Forging AISI 4130 4140 4145 4330V Steel Hollow Bar

Forging AISI 4130 4140 4145 4330V Steel Hollow Bar
Forging AISI 4130 4140 4145 4330V Steel Hollow Bar

Large Image :  Forging AISI 4130 4140 4145 4330V Steel Hollow Bar

Product Details:

Place of Origin: China
Brand Name: NEW FORCE
Certification: API
Model Number: 4130

Payment & Shipping Terms:

Minimum Order Quantity: 10 tons
Price: Negotiatable
Packaging Details: Plywood Cases or pallets
Delivery Time: ONE WEEK
Payment Terms: T/T, L/C
Supply Ability: 500 PIECES PER MONTH
Detailed Product Description
Material: 4130 Machine Type: Drilling Tools
Processing Type: Forging Type: Staibilizer
Size: As Per Your Order Advantage: High Performance
High Light:

4330V Steel Hollow Bar


AISI 4130 Steel Hollow Bar


API Forging Steel Hollow Bar

AISI 4130 4140 4145 4330V Alloy Steel hollow bar


Our annual forging capacity is 10,000 tons and we have more than ten scientific and technical personnel. Our extensive raw material inventory includes structural carbon steel, alloy structural steel, carbon tool steel, alloy tool steel, stainless steel and non-magnetic steel etc. We produce large and medium sized forgings including 4145H mod drilling stabilizer forging, reamer forging, and wellhead components forgings, etc.


New Force supplies a wide range of forged hollow bars, which has good resistance and high strength and hardness. Forged hollow bar is usually made from a solid round metal billet which is related and pushed or pulled over a form until the material is shaped into a hollow tube.


Steel ingot making


Manufacturing process

EAF + LF + VD+ Forging+ Normalizing & Tempering + Rough machining + UT test + Quenching & Tempering + Precision machining


Chemical composition report, Physical properties report, Heat treatment report, Dimensional inspection report, NDT report

Nondestructive test (NDT)

UT ( ultrasonic testing ), MT ( magnetic particle testing ), PT (penetrant testing)





Forged/cold drawn alloy steel round bar

Hot rolled carbon steel round bar


  1. Diameter: 8mm-250mm rounds5mm-9mm rods
  2. Length: 2m, 3m, 5.8m, 6m or customized
  3. Standard: GB, ASTM, AISI, SAE, DIN, JIS, EN
  4. Produce Process: smelt iron - EAF smelt billet - ESR smelt billet - hot rolled or forged to get the steel round bar and plate
  5. Heat Treatment: annealing, normalizing, tempering, quenching
  6. Surface Treatment: Black, Polished, Galvanized
  7. Quality Assurance: We accept third party inspection for all orders.

You can ask testing organizations such as SGS, BV, etc. to test our products before shipping.



Chemical Composition


Grade Dia.(mm) C Si Mn Cr P S Ni Cu Mo
5120 16-85 0.18-0.24 0.17-0.37 0.50-0.80 0.70-1.00 ≤0.035 ≤0.035 ≤0.03 ≤0.03  
5140 16-400 0.37-0.44 0.17-0.37 0.50-0.80 0.80-1.10 ≤0.035 ≤0.035 ≤0.30 ≤0.03  
4135 13-230 0.32-0.40 0.17-0.37 0.40-0.70 0.80-1.10 ≤0.035 ≤0.035 ≤0.03 ≤0.03 0.15-0.25
4140 13-360 0.38-0.45 0.17-0.37 0.50-0.80 0.90-1.20 ≤0.035 ≤0.035 ≤0.03 ≤0.03 0.15-0.25



Equipment List Model Qty
Intermediate Frequency Heat Treatment Quenching Furnace ZP-800KW 1
Medium Frequency Heat Treatment Tempering Furnace ZP-400KW 1
Four Pillars Multiple Use Press Machine Y43-500 Ton 1
Band Sawing Machine GB4028 8
Horizontal Lathe CT61100 7
Deep Hole Drilling and Boring Machine TQ2132 2
CNC Pipe Threading Lathe STC34100bpipe 3
CNC Pipe Threading Machine S1-262A 3
Gantry Type Milling Machine XG2080T*5m 1
CNC Gantry Milling Machine XG2310×65 1



Construction field, ships building industry, car making industry, petroleum & chemical industries, war and electricity industries, food processing and medical industry, boiler heat exchange, machinery and hardware fields.


Forging AISI 4130 4140 4145 4330V Steel Hollow Bar 0

Contact Details
Xi'an New Force Energy Engineering Co.,Ltd

Contact Person: zaya_z

Send your inquiry directly to us (0 / 3000)