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T95 Casing Tubing - API Certified Mill Direct Supplier | Kuaima Steel Group
China
Supplier's customization ability
- Drawing-based customization
- Sample-based customization
- Full customization
Minimum order quantity: 1 ton
Shipping total: To be negotiated
- Lead time:
- confirmed with the quotation
- Packaging:
- standard export packing
- Samples:
- available on request
Product details
Technical Specifications of T95 Casing Tubing
| Property | Parameter | Description |
|---|---|---|
| Product Name | T95 Casing Tubing | High-strength OCTG casing and tubing for oil and gas wells |
| Material Grade | T95 (API 5CT T95) | Equivalent to ISO 11960 Grade T95, high collapse resistance grade |
| Standard Compliance | API 5CT / ISO 11960 | American Petroleum Institute Specification for Casing and Tubing |
| Chemical Composition - Carbon (C) | ≤ 0.35% | Per API 5CT requirements for T95 grade |
| Chemical Composition - Manganese (Mn) | ≤ 1.20% | Ensures adequate strength and toughness |
| Chemical Composition - Chromium (Cr) | 0.40% - 1.50% | Enhances corrosion resistance and hardenability |
| Chemical Composition - Molybdenum (Mo) | 0.25% - 0.85% | Improves high-temperature strength and SSC resistance |
| Chemical Composition - S / P | S ≤ 0.010%, P ≤ 0.020% | Low sulfur and phosphorus for improved toughness |
| Yield Strength | 655 - 758 MPa (95,000 - 110,000 psi) | Controlled yield range per API 5CT T95 specification |
| Tensile Strength | ≥ 724 MPa (≥ 105,000 psi) | Minimum ultimate tensile strength per API 5CT |
| Elongation | ≥ 18% | Minimum elongation in 2-inch gauge length, varies with wall thickness |
| Hardness | ≤ 25.4 HRC | Maximum hardness requirement for sour service suitability |
| Outer Diameter Range | Casing: 4-1/2'' - 20''; Tubing: 1.050'' - 4-1/2'' | Full range of API standard sizes available |
| Wall Thickness | Per API 5CT dimensional tables | Multiple weight classes from standard to heavy wall |
| Length Range | R1 (16-25 ft), R2 (25-34 ft), R3 (34-48 ft) | Range lengths per API 5CT specification |
| Connection Type | STC, LTC, BTC, Premium Connections | Short Thread, Long Thread, Buttress Thread, and premium options |
| Surface Finish | Black Phosphate / Anti-corrosion Coating | Thread protectors applied; external coating available upon request |
| Application | Oil & Gas Well Completion | Suitable for deep wells, high-pressure environments, and mildly sour service (SSC resistant) |
| Certification | API 5CT Monogram, ISO 9001, NACE MR0175 | Third-party inspection available (SGS, BV, Lloyd's) |
| Packaging | Bundled with steel strips, thread protectors fitted | Shipped in bundles with markings per API 5CT requirements |
| MOQ | 20 Metric Tons | Smaller quantities available upon negotiation |
T95 Casing Tubing - API Certified Mill Direct Supplier | Kuaima Steel Group
T95 casing tubing is a high-strength, heat-resistant steel grade engineered for demanding oil and gas well completions where both mechanical performance and sulfide stress cracking (SSC) resistance are critical. As an API 5CT certified mill-direct supplier, Kuaima Steel Group delivers premium-grade T95 casing and tubing products to operators and distributors worldwide. Our T95 OCTG products undergo rigorous quality control — from raw material selection through final inspection — ensuring every joint meets the stringent requirements of deep well and sour service environments. Whether you're sourcing for high-pressure gas wells, offshore platforms, or geothermal projects, our extensive inventory and flexible production capability allow us to fulfill orders with competitive lead times and cost-effective mill-direct pricing.
What Is T95 Casing Tubing?
T95 casing tubing is a controlled-yield-strength steel grade defined under API Specification 5CT (ISO 11960). The "T" designation indicates the grade has been specifically heat-treated — quenched and tempered — to achieve a restricted yield strength range while maintaining superior resistance to sulfide stress corrosion cracking. T95 serves critical roles in well construction as both casing (structural lining of the wellbore) and tubing (the production conduit), particularly in environments containing hydrogen sulfide (H₂S). It bridges the performance gap between standard L80 and higher-strength Q125 grades, offering operators an optimal balance of strength, toughness, and sour service reliability.
T95 Casing Tubing Technical Specifications
All T95 casing and tubing products supplied by Kuaima Steel Group conform to the latest edition of API 5CT / ISO 11960. Below are the key mechanical and dimensional parameters:
| Property | Specification |
|---|---|
| Grade | T95 (API 5CT / ISO 11960) |
| Minimum Yield Strength | 655 MPa (95 ksi) |
| Maximum Yield Strength | 758 MPa (110 ksi) |
| Minimum Tensile Strength | 724 MPa (105 ksi) |
| Minimum Elongation | Per API 5CT formula (varies by wall thickness) |
| Hardness Requirement | ≤ 25.4 HRC (SSC compliance) |
| Heat Treatment | Quenched & Tempered (Q&T) |
| Casing OD Range | 4-1/2″ to 20″ (114.3 mm – 508.0 mm) |
| Tubing OD Range | 1.050″ to 4-1/2″ (26.67 mm – 114.3 mm) |
| Wall Thickness | Per API 5CT dimensional tables |
| Length Range | R1 (16–25 ft), R2 (25–34 ft), R3 (34–48 ft) |
| Connection Types | STC, LTC, BTC, Premium (VAM, Tenaris Blue, etc.) |
| Sour Service | Compliant with NACE MR0175 / ISO 15156 |
| Testing | Full-length hydrostatic test, NDE (UT/EMI), Charpy impact at 0°C |
Each T95 casing tubing joint undergoes full-body ultrasonic inspection, electromagnetic inspection, and hydrostatic pressure testing to ensure zero-defect delivery. Charpy V-notch impact testing at 0°C verifies fracture toughness, while hardness mapping across the cross-section confirms NACE MR0175 compliance for sour gas service.
Key Applications of T95 Casing Tubing
T95 casing tubing finds extensive application across the most challenging segments of the energy industry:
- Sour gas wells: H₂S-bearing formations requiring NACE-compliant materials with controlled hardness and SSC resistance.
- Deep and ultra-deep wells: High-pressure, high-temperature (HPHT) environments demanding yield strengths above L80 while maintaining ductility.
- Offshore drilling: Subsea completions where reliability and corrosion resistance are non-negotiable.
- Geothermal energy: High-temperature wells with aggressive downhole chemistry.
- CO₂ injection wells: Carbon capture and storage (CCS) projects requiring combined strength and corrosion performance.
Why Choose Kuaima Steel Group for T95 Casing Tubing?
- API 5CT Licensed Manufacturer: Products carry valid API monogram, ensuring full traceability and specification compliance.
- Mill-Direct Pricing: Eliminate intermediary markups with direct-from-mill supply chain efficiency.
- Comprehensive Inventory: Stocked sizes available for rapid mobilization; non-standard dimensions produced within committed lead times.
- Premium Connections Available: Beyond standard API threads, we supply VAM, TenarisHydril, and other premium connection profiles for gas-tight sealing.
- Third-Party Inspection: We welcome SGS, Bureau Veritas, TÜV, and client-appointed inspectors at our facility.
Frequently Asked Questions
What is the MOQ for T95 casing tubing?
Our minimum order quantity is typically 20 metric tons for standard sizes. For non-standard OD or wall thickness combinations, MOQ may increase to one heat lot (approximately 40–60 tons) depending on mill scheduling.
Do you provide material test certificates?
Yes. Every shipment includes EN 10204 Type 3.1 Mill Test Certificates covering chemical composition, mechanical properties (yield, tensile, elongation, hardness, Charpy impact), hydrostatic test results, and NDE reports. Third-party certificates from SGS or Bureau Veritas are available upon request.
What is the typical delivery time?
Stocked T95 casing tubing sizes ship within 7–15 business days. Custom production orders, including non-standard dimensions or premium threading, typically require 30–45 days from order confirmation to ex-works readiness.
Can you cut to custom sizes?
Yes. We offer precision cutting services to meet project-specific length requirements beyond standard R1, R2, and R3 ranges. Thread re-cutting and coupling makeup services are also available at our processing facility.
Get a Competitive Quote for T95 Casing Tubing
Ready to secure reliable, API-certified T95 casing tubing at mill-direct rates? Contact Kuaima Steel Group today with your project specifications — including OD, wall thickness, connection type, length range, and required quantity. Our OCTG specialists will respond within 24 hours with a detailed quotation, stock availability, and optimized logistics plan tailored to your delivery schedule.
Ratings & Reviews
Know your supplier
Supplier's customization ability
- Drawing-based customization
- Sample-based customization
- Full customization
Minimum order quantity: 1 ton
Shipping total: To be negotiated
- Lead time:
- confirmed with the quotation
- Packaging:
- standard export packing
- Samples:
- available on request
