Product Description
Chemical Composition
|
Element |
Grade A |
Grade B |
Grade C |
|
Carbon (Max %) |
0.25 |
0.30 |
0.35 |
|
Manganese (%) |
0.27-0.93 |
0.29-1.06 |
0.30-1.10 |
|
Phosphorus (Max %) |
0.035 |
0.035 |
0.035 |
|
Sulfur (Max %) |
0.035 |
0.035 |
0.035 |
Mechanical Properties
|
Grade |
Tensile Strength (MPa) |
Yield Strength (MPa) |
Elongation (Min %) |
|---|---|---|---|
|
A |
≥330 |
≥205 |
35 |
|
B |
≥415 |
≥240 |
30 |
|
C |
≥485 |
≥275 |
28 |
Material Core Advantages
This seamless steel pipe features pure steel raw materials and strictly controlled element proportion. It boasts excellent high-temperature resistance, good ductility and reliable pressure-bearing capacity. The material is easy to cut, bend and weld for on-site construction. Moreover, it shows stable oxidation resistance under long-term heat exposure, lowering maintenance costs for long-distance pipeline projects. No brittle fracture happens under normal extreme working environments.
Company & Factory Profile
Jiangsu Cunrui Metal Products Co., Ltd. is a professional steel pipe manufacturer located in Jiangsu Province. We own an independent production factory instead of a simple trading office. Our plant is equipped with hot rolling mills, precision cutting machines and full-set testing equipment.
From raw material procurement to finished product packaging, every production step is under strict quality control. Each batch of goods will pass pressure test, chemical inspection and dimension detection. With years of overseas exporting experience, we keep steady monthly output and offer stable supply for global bulk orders.
Product Application
Engineered for high-temperature and medium-pressure service, this seamless steel pipe fits a wide range of industrial piping applications. It is most commonly utilized for boiler tubes, superheater lines and heat exchanger piping in power generation plants. In the energy and chemical sectors, it serves for crude oil refining, petrochemical processing, and safe transmission of gas, steam and liquid media. Additionally, it is extensively applied in process engineering, offshore piping systems, general mechanical fabrication and municipal industrial pipeline construction.
Our Strengths
- Steel Pipe Supply: Provide carbon steel pipe, alloy pipe and stainless steel pipe with complete specifications.
- Deep Processing: Support cutting, threading, bending and customized surface anti-rust treatment.
- Global Export Service: Mainly export to Southeast Asia, Middle East, Europe and South America, covering one-stop logistics arrangement.
- Bulk & Custom Order: Accept wholesale orders and OEM processing, flexible MOQ to meet different purchase needs.
- After-sale Service: Offer official MTC certificates, customs clearance documents and permanent technical support.
Why Choose Us
Unlike general steel suppliers, we focus exclusively on seamless carbon steel pipe manufacturing, with a clear positioning for high-temperature industrial pipeline materials. We adopt strict raw material screening and full-process quality inspection; every batch of products undergoes hydrostatic testing and chemical analysis before delivery to eliminate defective goods. Transparent production flow, stable product tolerance and smooth pipe surface greatly reduce installation difficulty for buyers.
In addition, we provide flexible trading terms, affordable factory direct sales prices and thoughtful export packaging. Whether for small trial orders or large-scale engineering bulk procurement, we maintain stable delivery cycle and professional after-sales communication. Long-term cooperation with global clients proves that we are a trustworthy supplier for sustained steel pipe procurement.
FAQs
Q1: Which grade is the best choice for boiler projects?
Grade B is our most popular option. It balances hardness and cost, perfectly suitable for most boiler and high-temperature pipeline projects.
Q2: Can I get customized pipe size?
Certainly. We support non-standard outer diameter, wall thickness and fixed cutting length according to client drawings.
Q3: What certifications can you provide?
All products conform to ASTM standards. We can provide material test reports, third-party inspection certificates for customs clearance.
Q4: How long is your delivery time?
Stock goods can be delivered within 7-10 working days. Custom bulk orders take 15-25 days based on order quantity.
Q5: How to protect goods during sea shipment?
We use waterproof wrapping and solid wooden pallets. Strict packaging effectively avoids rust, scratch and extrusion damage.
