34CrMo4 1.7220 +Qt Alloy Steel Tube

• Customization: Available
• After-sales Service: Technical/Sample/Quality
• Type: Seamless
• Model NO.: 34CrMo4
• Material: Alloy Steel
• Surface Treatment: as Required
• Usage: for Oil Equipment
• Section Shape: Round
• Cutting Service: Available
• Mtc: 3.1 or 3.2 Certificate
• Delivery Condition: N, Q ,T
• Transport Package: Seaworthy Standard Package
• Specification: 30-850mm
• Trademark: SHUNFU
• Origin: China
• HS Code: 7304192000
• Production Capacity: 50000tons/Year

Product Description

34CrMo4 1.7220 +QT Alloy Steel Tube

We offer a comprehensive range of Alloy Steel Tubes that are appreciated for superior quality and unmatched durability. These are available in different sizes, grades, specification and shapes. We can manufacture such as Seamless Pipes & Tubes as per ASTM /EN /DIN standards & other international standards. It can customize this alloy steel pipes & tubes as per the requirements of the clients.
 

Application

Alloy Steel Tube have hollow sections and are widely used as pipelines for conveying fluids, such as oil, natural gas, gas, water and some solid materials. It is widely used in manufacturing structural and mechanical parts, such as oil drill pipe, automobile transmission shaft, bicycle frame and steel scaffolding used in construction. Manufacturing annular parts with alloy steel tubes can improve material utilization rate, simplify manufacturing process, save material and processing time, such as rolling bearing rings, Jack sleeves, etc.
 

Size Range

Outside Diameter : 30-850mm ;
Wall Thickness : 3-100mm ;
Length max 15000mm Single Random, Double Random & Required Length.
 

CHEMICAL COMPOSITION

GRADE	NUMBER	C	Si	Mn	P	S	Cr	Mo
34CrMo4	1.7220	0.30-0.37	≤ 0.40	0.60-0.90	≤ 0.025	≤ 0.035	0.90-1.20	0.15-0.30

 

EQUIVALENT STANDARDS

USA	UK	China	France
4135/4137	708A37	35CrMo	34CD4

MECHANICAL PROPERTY

Diameter d mm	≤ 16	16-40	40-100	100-160	160-250
Thickness t mm	< 8	8-20	20-60	60-100	100-160
Yield Strength Mpa	≥800	≥650	≥550	≥500	≥450
Tensile Strength Mpa	1000-1200	900-1100	800-950	750-900	700-850
Elongation, %	≥11	≥12	≥14	≥15	≥15
Reduction of area ,%	≥45	≥50	≥55	≥55	≥60
impact,J		≥40	≥45	≥45	≥45
Hardness,HB	298-359	271-331	240-286	225-271	213-253

 

Inspection

Mill Test Certificates, EN 10204 3.1, Chemical Reports, Mechanical Reports, PMI Test Reports, Visual Inspection Reports, Third Party Inspection Reports, Destructive Test Report, Non Destructive Test Reports
We ensure that all our materials go through strict quality tests before dispatching them to our clients.
• Mechanical Testing Such as Tensile of Area
• Hardness Test
• Chemical Analysis - Spectro Analysis
• Positive Material Identification - PMI Testing
• Flattening Test
• Micro and MacroTest
• Pitting Resistance Test
• Flaring Test
• Intergranular Corrosion (IGC) Test
 

Packages

all of our steel products are packaged as per international standard to prevent any possible damage or loss. By default, we will use thick woven plastic bag to bundle the finished pipes together in batches. However, for some special pipes that are vulnerable to dirt, scratches, stress or rough handling, we will suggest wooden case for protection. Kindly note, wooden case can incur extra cost, not only its own cost, but also the increased freight cost, which is especially true for air transportation. For enhanced customer experience, we also provide dedicated package as per your special requirements.
 

Logistics

By default, we will quote based on sea transportation, such as FOB, CFR, CIF, DDU, DDP and the like for most enquiries or orders. Quotation based on air transportation is also optional upon your request for urgent demands.