Hot Sale AISI 4130 4140 Hot Rolled Seamless Steel Tube

• After-sales Service: Technical/Sample/Quality
• Warranty: One Year
• Type: Seamless
• Technique: Rolled or Forged
• Material: Alloy Steel
• Surface Treatment: Black/Peeled/Polished
• Model NO.: 4130 4140
• Usage: Oil/Gas Drilling
• Section Shape: Round
• Transport Package: Anticorrosion Seaway Packages
• Specification: OD 30-850mm
• Trademark: SHUNFU
• Origin: China
• Production Capacity: 100000 Tons Per Year

Product Description

Product Description

Advantage	Thick Wall, Precision Dimension, +QT, Polished Surface, API certificated
Standard	API 5CT,
Grades	4130, 4140, 4145, 4145H, 4145H MOD, 4330V, 4317, 4340, ETC
Category	Seamless Round Steel Tube
Outside diameter inch	0.405 to 34
Inside diameter inch	0.049 to 1.25
NPS	1/8 to 34
Outside diameter mm	10 to 864
Inside diameter mm	1 to 80
Length Meter	Max 15
Length Foot	Max 49
Process	Forged or Hot rolled+cold drawn or Borehole
Heat treatment	Normalized ; Annealed ; Quenched and Tempered etc
Surface condition	Black, Peeled, Polished etc
Test	Tensile strength, Yield strength, elongation, impact value, hardness, grain size, ultrasonic test, magnetic particle testing, etc.
Packing	Sea worth standard exporting packing
Shipping term	In bulk / FCL / LCL, partial shipment allowed
Trade term	FOB, CIF, CFR, DDU etc
Payment	TT, LC etc
Delivery time	Within 7 days for stocks and 30 days for production

Company Profile

4130 Chromoly Tubing

Chromoly tubing is highly versatile and used for a wide range of applications including automotive, aerospace, bicycling, construction, and firearm projects. 4130 steel tubing offers good strength, weldability, impact and abrasion resistance while also being easy to machine. Because it's stronger than carbon steel, thinner-walled tubing can be used for the same purpose - as in bicycle parts - leading to the part having a lighter weight. 4130 tubing stock is available in full size and custom cut lengths.
 

Advantages

Round 4130 Chromoly tube and pipe is manufactured to withstand a wide range of elements, providing benefits and uses for many applications. Some of the strengths of using Chromoly tube include:
Excellent strength-to-weight ratio
High tensile strength, ductility, and toughness
Lighter and more robust than carbon steel
Easy to weld, form, and machine
Ability to case harden using carburization
Ability to harden using heat-treating or work hardening
 

SIZE RANGE

OD : 0.250" - 3.250"
OD Tolerance:  +/- .005" (up to 1.500" OD),  to +/- .010" (above 1.500" OD)
Wall thickness : 0.035"- 0.313"
Wall Tolerance:  +/- 10% (For ID Over .500") to +/- 15% (for ID under .500")
Stocked in 17.000" - 24.000" random lengths (Cut to Length available)
 

Chemical Composition

Grade	C	Mn	P	S	Si	Cr	Mo
4130	0.28-0.33	0.40-0.60	≤0.035	≤0.040	0.15-0.35	0.80-1.10	0.15-0.25

 

MANUFACTURING PROCESS

Depending on the grade and type, alloy tubing is either produced per ASTM A513 Type 5 or ASTM A519 industry standards. See CDS, HRS, or DOM manufacturing processes per the specific type and specification for more information.
1 CDS: seamless tube and pipe is produced by piercing hot billets and subsequent rolling which reduces their diameter and elongates them. This material is then passed through a die and over a mandrel plug to produce an accurate size and gauge which is the essence of the cold drawing process.
2 HRS: Hot rolled mechanical tubing is produced by heating a solid billet or bar and then rotary piercing it as it rotates on rollers.  Then the final processing through multiple pass size-reducing mills occurs. Tolerances and finish are similar to other hot worked steel products. Range of sizes and grades are more restricted than cold finished by the nature of the process involved.
3 DOM: The manufacturing process for DOM round steel tubing begins with coils of steel, which are slit to the proper width for the desired tube size. The strip is cold formed and passed through an electric resistance welder which joins the edges together, under pressure, to complete the tubular shape. After testing the weld's integrity, the tubing is cut to length for further processing.
 

Applications

Round steel tube 4130 provides good weldability without compromising steel abrasion and impact resistance. It is also sturdy yet lightweight in applications requiring strength without additional weight.
Some of the typical applications for 4130 round tubing include:
Motorcycle frames
Aerospace applications
Motorsport chassis
Aircraft gas delivery systems
Bicycle frames
Racecar roll cages
 

Precision Chromoly Steel Tubing & Pipe Secondary Services

We can cut your metal to size and deliver it the next day. If you require more extensive services than just sawing or shearing, we also offer the following advanced metal cutting options:  
Hi-Def Plasma Cutting
Tube Laser
Flatbed Laser
Water Jet Cutting
Metal Shearing & Sawing
Custom Extrusions
 

Order 4130 Steel Chromoly Tubing & Pipe Today

We stocks a wide range of 4130 chrome moly tube sizes for your specific project needs. We offer quick delivery. Contact us today to discuss using round 4130 Chromoly tubes in your application.