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30CrMnSia /45MNMob Q+T Material Drill Pipes Seamless Tubes Drill Rod, Drilling Pipe

30CrMnSia /45MNMob Q+T Material Drill Pipes Seamless Tubes Drill Rod, Drilling Pipe

30CrMnSia /45MNMob Q+T Material Drill Pipes Seamless Tubes Drill Rod, Drilling Pipe

Product Details:

Place of Origin: China
Brand Name: Torich
Certification: ISO9001
Model Number: 30CrMnSia /45MNMob

Payment & Shipping Terms:

Minimum Order Quantity: 5tons
Price: negotiation
Packaging Details: In wooden boxes
Delivery Time: 5-8 weeks
Payment Terms: T/T, L/C
Supply Ability: 3000pcs per year
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Detailed Product Description
Material: 30CrMnSia /45MNMob Technique: Cold Drawn
Application: Oil Pipe Standard: ASTM
Alloy Or Not: Is Alloy Thickness: 2 - 120 Mm
Special Pipe: Precision Seamless Pipe Length: Customer's Requirement
Shape: Round Shape

30CrMnSia /45MNMob Q+T Material Drill Pipes Seamless Tubes Drill Rod, Drilling Pipe


Analysis of mechanical properties of 30CrMnSiA chemical composition

1. 30CrMnSiA is read as 30 chromium manganese silicon A, which is a grade of alloy structural steel prescribed by the standard. Unified digital code: A24302.

2. 30CrMnSiA belongs to medium carbon, with high strength and poor welding performance. It is a high-strength quenched and tempered structural steel with high strength and sufficient toughness after quenching and tempering, and good hardenability. It has good workability, small processing deformation, and good fatigue resistance.

3. Executive standard: National standard: GB/T 3077-1988

National military standard: GJB2150A-2015

Wugang Technology Agreement: WYJ027-2001

4. Comparison of Chinese and foreign brands:



5. Chemical composition:

C 0.28-0.34 Si0.0-1.2 Mn0.8-1.1 S max 0.025 Pmax 0.025 Cr0.8-1.1 Ni max 0.030 Cu max 0.025

6. Mechanical properties:

Tensile strength min 1080Mpa

Yield strength min 835Mpa



7. Delivery in the state of heat treatment (normalizing, annealing or high temperature tempering) or non-heat treatment, basically in the state of normalizing delivery. The delivery status should be indicated in the contract.

8. Heat treatment method:

Quenching heating temperature (℃): 880; coolant: oil

Tempering heating temperature (℃): 520; Coolant: water, oil

9. Characteristics and uses: high-strength quenched and tempered structural steel. It has high strength and toughness, high hardenability, medium cold deformation plasticity, and good cutting performance. There is a tendency to temper brittleness, and the transverse impact toughness is poor. The welding performance is good, but when the thickness is greater than 3mm, it should be preheated to 150℃ first, and heat treatment is required after welding. Generally used after tempering.

10. It is mostly used to manufacture various important parts with high load and high speed, such as gears, shafts, clutches, sprockets, grinding wheel shafts, shaft sleeves, bolts, nuts, etc. It is widely used in the aviation field. It is also used to manufacture wear-resistant, low-temperature parts, welding components with variable loads, such as high-pressure blower blades, valve plates, and non-corrosive pipes.



Raw materials:

Torich only choose the best steel tubes in the market to manufacture our rods and pipes.

Spot check will be conducted after the steel tubes delivered to company. We will make sure the

compositions and specifications match the inspection report form the suppliers.


Heat treatment control:

Heat treatment will greatly improve the material strength and increase the thread wear life of the

rods and casings. We conduct either tru-wall or both ends heat treatment to the tube body. After

heat treatment, strength, hardness, straightness and concentricity of the treated tubes will be tested

in our lab.

30CrMnSia /45MNMob Q+T Material Drill Pipes Seamless Tubes Drill Rod, Drilling Pipe


Contact Details
Torich International Limited

Contact Person: Mr. Richard

Tel: 86-574-88086983

Fax: 86-574-88086983

Send your inquiry directly to us (0 / 3000)

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