Non-API seamless OCTG HS95S SSC resistant deep oil well casing tubing

Vanforge provides a complete range of steel grades for all kinds of oil and gas operations.

API steel Grades

Vanforge supply all API steel grades including all the additional Supplementary Requirements (SR) and/or Product Specification Levels (PSLs).

Proprietary steel Grades

We supply steel grades with performance properties that surpass those indicated by the API.

Grades with enhanced performance properties

Vanforge provides the following proprietary steel grades for superior mechanical properties:

High collapse

Deep well

Low temperature

High ductility

Thermal service

Grades for corrosive environments

To improve the corrosion resistance for the demanding conditions of particular oil and gas wells, Vanforge has developed a variety of proprietary steel grades that extend the life span of pipe products reducing corrosion rates:

Sour service

High collapse & Sour service

Critical service

Corrosion Resistant Alloys

Sour service

Our Sour Service grades demonstrate improved resistance to Sulfide Stress Cracking through their steel microstructure and tight mechanical properties.

Grades to resist sour environments

Vanforge has developed sour service grades for oil and gas operations in sour environments. The grades in our Sour Service Series exhibit improved resistance to Sulfide Stress Cracking (SSC).

An unfavorable combination of H2S dissolved in water, low pH, susceptible structure and high loads, will cause cracks to occur in the steel pipe, which will propagate until failure occurs.

Our SS grades are designed to prevent Sulfide Stress Cracking (SSC) failures.

The improved resistance to SSC is obtained by the specific design of the steel microstructure and tight control of the mechanical properties.

Our SS steel grades are available in minimum yield strengths ranging from 80 ksi to 125 ksi.

Grades to resist mild sour environments in shale applications

R95-S and P110-S proprietary grades are API steel grades with improved resistance to SSC. They are available in minimum yield strength of 95 ksi and 110 ksi.

Parameters for excellent SSC resistance

The steelmaking process must provide products with the following characteristics:

Clean steel, with a very low level of residual elements and oxygen to minimize the quantity of inclusion and specifically oversized oxides.

• Chemistry design: a balanced chemical composition to ensure high hardenability.
• Together with adequate quenching, the chemistry ensures over 95% martensite.
• Fine-grained microstructure through rolling and heat treatment.
• Heat treatment ensuring a very fine microstructure and high final tempering temperature to promote a recovery process eliminating high-energy sites.

Seamless tubing without coupling

Seamless tubing with coupling

Production procedure

Suzhou Vanforge Metals Co., Ltd. was set up in April 1999 with a registered capital of 230 million Yuan in Zhangjiagang Bonded Area in Jiangsu Province of China. It has developed to be an important R&D and manufacture enterprise of high performance stainless steels and nickel alloys.

Vanforge is a high-tech enterprise with 70 national patents, it has its own Special Alloy Research Center, academician workstation and post doctorate innovation practice base. Vanforge has been certificated the national laboratory accreditation of ISO/IEC 17025, and ISO9001, ISO14001, OHSAS18001, API Q1, IATF16949, GB/T23331, TUV, CCS, DNV, LR, ABS.

Vanforge has the international advanced special smelting capacity, including the German ALD 6t vacuum induction furnace, 6t consumable electrode vacuum furnace, 18t drawing-ingot protective atmosphere electroslag furnace and 1t vacuum induction furnace, 3t electroslag furnace, 18t drawing-hollow ingot electroslag furnace, and 2# Purification Furnace/1# Purification Furnace/LF/AOD/VOD refining production line, 25MN/8MN fast forging machine, 450/320 rolling mill, etc.

The current annual production capacity of Vanforge is 120,000 tons, and the main products are high-grade special alloy materials, including high temperature alloy, corrosion resistant alloy, precision alloy, ultra high strength steel, special stainless steel, high-grade tool and mould steel, steam turbine blades steel, gas turbine steel, ultra-supercritical materials, etc., which are widely used in aviation, aerospace, ship, petrochemical, nuclear power, electronics, steam turbine, high-speed rail, machinery manufacturing, and other fields; besides, we can organize the research and development and production of new materials according to customer demand for new materials. Vanforge has now become a qualified supplier of domestic high-end equipment manufacturing enterprises, such as CASIC, CGN, CRRC, CFHI, Wujin Stainless, Zhejiang Jiuli Hi-Tech Metals Co., Ltd., Xinxing Ductile Iron Pipe Co., Ltd., etc.

We always adhere to the concept of quality first, integrity based, scientific and technological innovation, making progress, and wholeheartedly serving customer and devote ourselves to becoming the well-known supplier of key basic materials of world’s high-end equipment manufacturing industry.

We supply following products in the forms of wires, bars, plates

(Super) austenitic stainless steels

(Super) duplex stainless steels

(Supper) Ferritic stainless steels

Precipitation hardening stainless steels

Incoloy alloys

Inconel alloys

Monel alloys

Hastelloy alloys

As well as following steel products

Gear steels

Bearing steels

Spring steels

Drilling tool steels

Free-cutting steels

Anchor steels, mooring chain steels

Mining chain steels

Die steels, Mold steels, tool steels

Structural steels

Antiwear steels

Offshore structure steels

Petroleum storage tank steels