Description

A structural steel developed for use in demanding load-bearing structures within the Offshore and Marine Industry.

S700 steel exceeds the requirements of S690QL steel, EN 10025-6. S700 steel can be ordered with dual steel grades certificate, where the additional steel grade is defined and approved by one of the Classification Societies listed below.

The dual certification offers You the benefits of excellent mechanical properties, extra tight tolerances, formability and consistency of VANFORGE

Classification society

- American Bureau of Shipping AB EQ70, 4.8 to 130 mm thickness.

- DNV - GL NV E690, VL E690, 6 to 80 mm thickness.

- Lloyds Register LR EH 69, 8 to 80 mm thickness.

Dimension Range

S700 steel is available in plate thicknesses of 4 – 130 mm and available in widths up to 3350 mm and lengths up to 14630 mm depending on thickness.

Mechanical Properties

(1) For transverse test pieces according to EN 10 025.

Impact Properties

(1) Unless otherwise agreed, only transverse impact testing.

Additional Options for Mechanical properties:

Option 1 - Min guaranteed impact energy (J) for transverse testing Charpy V 10x10 mm tests specimens 50 J/ -60 °C.

Option 2 - Improved deformation properties perpendicular to the surface. Through- thickness tensile testing according to EN 10 164, Class Z35, Z25 and Z15.

Chemical Composition (ladle analysis), %, max

The steel is grain refined.

Thickness

Tolerances meet the requirements of EN 10029 Class A, but offers narrower tolerances.

Length and Width

Tolerances conform with EN 10029.

Shape

Tolerances according to EN 10 029.

Flatness

Tolerances according to EN 10029 Class N.

Surface Properties

According to EN 10 163-2 Class A, Subclass 3.

Delivery Conditions

The delivery condition is Q+T (Quenched and Tempered). The plates are delivered with sheared or thermally cut edges.

Untrimmed edges after agreement.

Fabrication and Other Recommendations

Welding, bending and machining.

S700 steel has obtained its mechanical properties by quenching and subsequent tempering. The properties of the delivery condition cannot be retained after exposure to temperatures in excess of 580 °C.

Appropriate health and safety precautions must be taken when welding, cutting, grinding or otherwise working on this product. Grinding, especially of primer coated plates, may produce dust with a high particle concentration.

Specification

Plate thickness: 4-100mm

Width: 500mm – 4700mm

Length: On request

Production process

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