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Letter code for material quality bolts, nuts, etc.

07 May 2026

With standard fasteners, a strength class designation such as 8.8 or 10.9 primarily indicates: Tensile strength (Rm) Yield strength (Rp0.2%) Properties at room temperature This is usually sufficient for applications up to 100°C. However, when used at higher temperatures, the…

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51CrV4 (1.8159) – Strong and resilient chromium-vanadium steel

20 April 2026

The steel grade 1.8159 (51CrV4) is one of the most widely used chromium-vanadium alloys in European industry. The material is known for its excellent combination of strength, toughness, wear resistance and high yield strength. It is precisely this high yield…

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Expansion range steel socket weld fittings in 3000–6000 lbs

27 March 2026

GNS has further expanded its range with a complete line of forged steel socket weld (SW) fittings in 3000 and 6000 lbs. These socket weld fittings are now available in both ASTM A105 and the alloyed grade A350. This move…

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Expansion product range with Alloy 926 (1.4529) spring steel

02 February 2026

Material number 1.4529, also known as Alloy 926, is a high-quality super austenitic stainless steel with exceptional resistance to corrosion in highly aggressive environments. Thanks to its high content of chromium, nickel, molybdenum, copper and nitrogen, this material is particularly…

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From stock: but weld reducing tees and eccentric reducers

11 January 2026

Our range of but weld reducers and tees in P235GH has recently been further expanded. GNS can now also supply eccentric reducers and reducing tees up to DN150 from stock. All products according EN10253-2 Type A and are accompanied by…

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