34CrMo4 JIS G 3429 DIN17175 Alloy Steel Seamless Pipe Gas Cylinders Seamless Tube

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Product Description

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Basic Specifications

Model NO.
34CrMo4 JIS G 3429
Composition
Carbon Phosphorus Chromium Molybdenum
Technique
Hot Rolled
Shape
Round Square and Rectangular
Surface
Polished
Application
Petroleum, Chemical, Machinery
Alloy or Not
Alloy
Spot Size
6'' to 30''
Custom Size
32'' to 76''
Thickness
Sch 10 to Sch Xxs
Delivery Time
8-14 Days
HS Code
73043110
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Product Description & Applications

Types Application Details
Structure PurposesGeneral structure and mechanical
Liquid ServicesPetroleum, gas and other fluids conveying
Low and Medium Pressure Boiler TubeSteam and boiler manufacturing
Hydraulic Pillar ServiceHydraulic support
Auto Semi-shaft CasingAuto sem-shaft casing
Line PipeOil and gas conveying
Drill PipesWell drilling
Furnace & Heat ExchangersFurnace tubes, heat exchangers
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Manufacturing Tolerances

Pipe types Pipe sizes (mm) Tolerances
Hot rolledOD < 50±0.50mm
OD ≥ 50±1%
WT 4~20+15%, -12.5%
Cold drawnOD 10~30±0.40mm
WT 1~3+15%, -10%
WT > 3+12.5%, -10%
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Product Detailed Photos

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Production Capacity & Facilities

Factory Overview

Founded in 2014, our company specializes in the research, development, and production of seamless steel pipes. With an annual output of 250,000 tons, we specialize in non-standard steel tubes, super thick wall tubes, and custom fixed-size alloy pipes.

Our facilities include high-end production lines: 50, 76, and 90 production workshops, alongside 10 fine rolled production units. The 90-line configuration features the Assel limited mandrel rolling machine, providing the strongest three-roll rolling capacity available for ultra-thick and ultra-long specifications.

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Global Cooperation

We have established long-term partnerships with customers worldwide, including Iran, Japan, and India. Our advanced processing machinery and strict quality assurance systems have earned recognition and trust from our international partners.

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Quality Certifications

Compliance Certificate

Frequently Asked Questions

What types of steel pipes can I purchase?
You can buy seamless steel pipes, welded steel pipes, alloy steel pipes, oil/gas transportation pipes, and hydraulic support pipes. We also offer customized products based on specific material and size requirements.
What are the main applications for 34CrMo4 pipes?
These pipes are ideal for high-pressure gas cylinders, petroleum conveying, chemical machinery, boiler manufacturing, and hydraulic supports due to their high strength and wear resistance.
Do you offer custom sizes for non-standard projects?
Yes, we specialize in non-standard steel tubes and super thick wall specifications. We can customize sizes from 32'' up to 76'' with specific cut lengths.
How do you ensure the quality of the steel pipes?
We implement a strict 2-hour quality inspection cycle, entrance/exit inspections, and work order tracking. We also welcome third-party inspections from companies like BV and SGS.
What surface treatments are available?
Our standard treatments include polished, black painting, black varnish, transparent oil, hot galvanized, 3PE, epoxy coating, and phosphate finishes.
What are your typical delivery and trade terms?
We typically deliver within 8-14 days. We support various trade terms including FOB, CFR, and CIF to meet different logistical needs.

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