Oil Casing Pipe and Tubing Casing Steel /Carbon Steel Pipe Casing Pipe High Quality

• Customization: Available
• Type: Seamless/Welded
• Technique: Hot/Cold Rolled,Cold Draw,ERW,Saw,Efw,Extrude
• Model NO.: J55 K55 N80-1 N80Q R95 M65 L80 C90 T95 C110 P110
• Material: Carbon,Stainless,Alloy
• Surface Treatment: Black/Varnishing/Polished/Oiled/Galvanized
• Usage: Pipeline Transport, Boiler Pipe, Hydraulic/Automobile Pipe, Oil/Gas Drilling, Food/Beverage/Dairy Products, Machinery Industry, Chemical Industry, Mining, Construction & Decoration, Special Purpose
• Section Shape: Round
• Payment: T/T L/C
• Certificate: CCS, ABS, BV API, ISO9001
• Thickness: Customizable
• Width: Customizable
• Delivery: at Stock or 7-15 Days According to The Quantity
• Grade: J55 K55 N80-1 N80q R95 M65 L80 C90 T95 C110 P110
• MOQ: Low MOQ
• Quality Control: 100% Inspection
• Standard: API Spec 5L
• Transport Package: Neutral Standard Export Seaworthy Packing
• Specification: As customer′ s requirement
• Trademark: TONGNO
• Origin: China
• HS Code: 73042900
• Production Capacity: 200000ton/Year

Product Description

 

 

Product Description

Seamless steel pipes are indispensable components in our modern life, recognized for their versatile applications. A key field of usage is as energy conduits, crucial for the transmission of resources like oil and natural gas. These pipes can traverse vast landscapes or delve beneath the oceans, facilitating seamless energy distribution across diverse regions. This method of energy transportation stands unparalleled, outshining traditional land or sea transport routes with its efficiency and reliability.
Tubing and casing pipes are distinctly engineered from standard seamless steel pipes. Designed for deployment in intricate geological terrains, these pipes must endure varying conditions, such as fluctuating geological states and complex subterranean stressors. The pipes are subjected to a dynamic range of forces, including tension, compression, bending, and torsion. These demanding environments necessitate superior quality casting, as oil well pipes are exposed to some of the harshest service conditions imaginable.
For example, tubing strings and casing strings are engineered to withstand extreme pressures, reaching several hundred to thousands of atmospheres. They must also endure immense tensile loads, weighing tens of tons, alongside high temperatures and exposure to aggressive corrosive media, ensuring their performance under such hostile environments is unwavering.

Standard:

API SPEC 5L--American Petroleum Institute Standard

Uses:

Specialized seamless steel tubing tailored for casing and tubing applications in oil wells.


Main production steel pipe grades:

J55, K55, N80-1, N80Q, R95, M65, L80, C90, T95, C110, P110, Q125



Dimensional tolerances:

Pipe Types	Diameter(D)		Wall thickness(S)
	Outer diameter of steel pipe(mm)	Permissible deviation(mm)	Permissible deviation(mm)
Cold Drawn Pip	<114.3	±0.79	-12.50%
	≥114.3	-0.5%,+1%

Mechanical properties:

Standard	Grade	Tensile strength (MPa)	Yield strength (MPa)
API SPEC 5CT	J55	≥517	379~552
	K55	≥517	≥655
	N80	≥689	552~758
	L80(13Cr)	≥655	552~655
	P110	≥862	758~965

Chemical composition:

Standard

Grade

Chemical Components(%)

C

Si

Mn

P

S

Cr

Ni

Cu

Mo

V

Als

API SPEC 5CT

J55K55

0.34~0.39

0.20~0.35

1.25~1.50

≤0.020

≤0.015

≤0.15

≤0.20

≤0.20

≤0.020

(37Mn5)

N80

0.34~0.38

0.20~0.35

1.45~1.70

≤0.020

≤0.015

≤0.15

0.11~0.16

≤0.020

(36 Mn2V)

L80(13Cr)

0.15~0.22

≤1.00

0.25~1.00

≤0.020

≤0.010

12.0~14.0

≤0.20

≤0.20

≤0.020

P110

0.26~0.35

0.17~0.37

0.40~0.70

≤0.020

≤0.010

0.80~1.10

≤0.20

≤0.20

0.15~0.25

≤0.08

≤0.020

(30CrMo)

Detailed Photos

 

Certifications

Packaging & Shipping

Packing Details:
1. Our packaging is tailored for export, ensuring your product is shipped in a sea-worthy package enveloped in water-proof paper for ultimate protection against the elements.
2. Our professional teams are dedicated to the safe loading and fixing of your goods, ensuring they reach their destination intact and secure.

Delivery Detail: Your order will be dispatched within an expedient 7-10 working days post receipt of the deposit, or tailored to your specified order quantity.

Company Profile

Wuxi Tongno Special Steel Co., Ltd. Established in 2013, with a robust registered capital of 5 million yuan, Wuxi Tongno Special Steel Co., Ltd. stands as a beacon in the specialized production of seamless steel pipes. Our journey of swift growth and innovation has resulted in the establishment of three cutting-edge seamless steel pipe production lines, each designed to meet the dynamic demands of the industry.
At Wuxi Tongno Special Steel Co., Ltd., our unwavering commitment to the ethos of 'quality first, customer first' drives our operations. We excel in delivering products with exceptional precision, offering an impressive array of wall thicknesses, and accommodating small batch orders with diverse varieties-all at an impressive pace. Our prowess in producing small-diameter, medium-thick-walled, and large-caliber, thin-walled alloy seamless steel pipes is unparalleled, positioning us at the forefront of the industry both domestically and internationally. Our esteemed products have garnered recognition in numerous construction projects worldwide, showcasing our unique manufacturing capabilities and energy.

Our Advantages

1. Exceptional Service: Experience unparalleled customer care! We promise swift, attentive service, responding to every inquiry within a mere 12 hours.

2. Certifications: We proudly boast ISO 9001, CE, and SGS certifications, ensuring our commitment to superior quality standards.

3. Cost-Effective Quality: Reap the benefits of outstanding value! Enjoy competitive pricing paired with exceptional quality, thanks to direct sourcing from our very own factory.

4. Robust Production Capacity: With an impressive monthly output of 20,000 tons, we guarantee a seamless and reliable production process, meeting all your demands efficiently.

5. Flexible Payment Terms: We accommodate your financial preferences with various payment methods, including secure T/T and L/C options.

6. Swift Delivery & Standard Export Packaging: Enjoy the peace of mind that comes with quick delivery and products meticulously packaged according to international export standards.

7. Factory-Direct Advantage: Benefit from the unique factory-direct advantage, allowing us to offer you competitive pricing without any sacrifice in quality.

8. Third-Party Testing: We encourage third-party testing, providing transparency and confidence in the quality of our exceptional products.

9. Expert Team Support: Our dedicated expert sales team and reliable factory support ensure a smooth and professional customer experience, every step of the way.

10.Dedicated to Customization: Your unique specifications are not only welcomed; they are our guiding force. We are committed to fulfilling every customized request with precision and dedication.

 

FAQ

Q1: What are your primary product offerings?

A1: We are a leading manufacturer and supplier of high-quality steel products, specializing in:
Stainless Steel & Carbon Steel: Sheets/plates, coils, and pipes/tubes (both seamless and welded)
Structural Components: Various bar profiles (round, square, hexagonal, flat, angle), C-channels, and H/I-beams
Custom Fabrications: Tailored solutions to meet specific project requirements

Q2: What quality assurance measures do you have in place?

A2: We maintain stringent quality control through:
Comprehensive Mill Test Certificates provided with all shipments
Optional third-party inspection services (SGS, BV, etc.)
ISO-certified manufacturing processes
Rigorous in-house testing and quality checks

Q3: What are your standard packaging terms?

A3: Our standard packaging includes:
Bundled or coiled goods secured with steel rods/straps
Custom packaging solutions available per customer specifications
Export-grade packaging to ensure optimal protection during transit

Q4: What is your typical delivery timeline?

A4: We offer flexible delivery options:
Stock items: Ready for shipment within 3 business days after deposit confirmation
Made-to-order items: Production typically completed within 7-15 working days post-deposit
Expedited options available for urgent requirements

Q5: What competitive advantages does your company offer?

A5: We differentiate ourselves through:
A team of highly skilled professionals and technical experts
Industry-leading pricing without compromising quality
Unparalleled after-sales support and customer service
Extensive inventory and reliable supply chain management

Q6: Do you provide product samples?

A6: Yes, we're pleased to offer:
Complimentary small samples from existing inventory
Customer only responsible for shipping costs
Custom samples available for specific project needs

Q7: What are your payment terms?

A7: Our standard payment structure:
30% advance payment via T/T to initiate production/order
Remaining 70% balance due prior to shipment
Full documentation including product photos and packaging details provided before final payment

Why Choose Us?

√ Quality Assurance: Rigorous testing and certification
√Competitive Pricing: Cost-effective solutions without compromise
√ Reliable Delivery: On-time fulfillment guaranteed
√ Custom Solutions: Tailored to your exact specifications
√ Expert Support: Technical guidance at every stage
For further inquiries or specific requirements, please contact our sales team. We're committed to providing exceptional service and top-quality steel products for your projects.