Test certificate types 2.1, 2.2, 2.3, 3.1, 3.1B, 3.1A, 3.1C and 3.2 to the 1991 and 2004 editions of BS EN 10204 are described. The 2004 edition has simplified the range of certificate types to only include types 2.1, 2.2, 3.1 and 3.2. Type 3.1 replaces 3.1B and type 3.2 replaces 3.1A, 3.1C and 3.2 of the previous 1991 edition. The 1991 version of EN 10204 was based on the original German DIN 50049.
To coincide with the centenary of the discovery of stainless steel made by Harry Brearley in Sheffield during 1913 we have been revising the very popular publication ‘Understanding Stainless Steel’.
The new centenary edition is now available!
This includes additional features such as:
– Recent developments in grades
– Information on the latest Surface Finishing Techniques
– Updated images throughout
Our former technical advisor Alan Harrison worked on the book to help everyone along the supply chain gain a basic understanding of Stainless Steel.
The idea for this book grew out of a series of “Starter Workshops” run by the British Stainless Steel Association (BSSA). These 1-day seminars are designed for those who have little or no knowledge of stainless steel or who need a refresher in the basics. “Understanding Stainless Steel” complements the “Starter Workshops” and will help those involved in specifying, designing, buying, selling or fabricating this versatile product.
Click here to download a sample from the book to give you a flavour of its contents.
Chapter Headings of the book;
The World of Stainless Steel – a brief overview of applications
History of Stainless Steels
A Little Metallurgy – basic concepts, atoms, compounds etc
Why is stainless steel “stainless”? – explanation of the passive layer
The Structure of Stainless Steels – ferritic, austenitic, martensitic, duplex, precipitation hardening
Types of Stainless Steel – pros and cons of ferritic, austenitic, martensitic, duplex, PH grades
Grade of Stainless Steel – common grades of each basic type with AISI EN equivalents
Magnetic Properties – stainless steels are non-magnetic. Yes and No.
The Testing of Stainless Steels – how to read a test certificate
Corrosion of Stainless Steels
High Temperature Properties
Ingredients of Stainless Steel – the effects of the elements in stainless steel and grades which show this effect
The Manufacture of Stainless Steel – overview of process routes
Surface Finishes – range of available finishes and influence on corrosion resistance
Fabrication of Stainless Steels
Recycling of Stainless Steel
The Basics of Stainless Steel – summary of most important issues
Common Standards for Stainless Steel – summary of applicable EN standards for stainless steels
Stainless Steel Quiz – test your new knowledge
Glossary of Terms
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The stiffness of a stainless steel component varies with the stress level, the stiffness decreasing as the stress level increases. Consequently deflections are greater in stainless steel beams than in carbon steel beams. This article explains how to calculate the deflection in a stainless steel beam. (206)
Pitting resistance equivalent numbers, (PREN), are a theoretical way of comparing stainless steels, using their chemical compositions. The formulae are based mainly on chromium, molybdenum and nitrogen contents. Grades with a PREN of 40 or more are known as ‘super’ austenitics or duplex types, depending to which basic family they belong. A table of calculated PREN values compares some of the ferritic, austenitic and duplex steel grades.
Specified chemical compositions, tensile strength and hardness ranges for aerospace standard grades such as S61, S62, S80, (431 type), S111, S124, S125, S126, S127, S128, S129 (321 type), S130 (347 type), S137, S141, S143, S144, S145, (520B DEF STAN 95-15/14 STA 59 type) , S151, S159, S160, (304LN type), S161, (316LN type), S205 and S206 are listed.
Specified chemical compositions, tensile strength and hardness ranges for aerospace standard grades such as S524, (321 type), S525, (347 type), S526, (321 type), S527, (321 type), S528, S529, S530, S531, S532, (520S DEF STAN 95-15/1 STA 60 type), S533, (520S DEF STAN 95-15/1 STA 60 type) and S536, (304 type), S537 and S538 are listed.
BS 6744 was originally published in 1986. A recent revision, (2009), has introduced 2 new duplex grades. The current version now includes European steel grades, (numbers in the standard), 1.4301, 1.4436, 1.4429, 1.4162, 1.4362, 1.4462, 1.4501, 1.4529.The chemical composition of stainless steels covered in the this standard are shown along with the specified tensile properties for the ‘grades’ 200, 500 and 650
BS EN 10302 is the material standard for creep resisting steels, nickel and cobalt alloys. Martensitic and austenitic steels are included. The latest edition was published in April 2008. There are some minor changes and the addition of one new grade 1.4951 which is a 310 with a minimum carbon content. The chemical composition of steel grades covered in the this standard include 1.4903, 1.4905, 1.4911, 1.4913, 1.4922, 1.4923, 1.4935, 1.4938, 1.4910, 1.4919, 1.4941, 1.4945, 1.4951, 1.4958, 1.4959, 1.4961, 1.4962, 1.4971, 1.4980, 1.4981, 1.4983 and 1.4988
BS EN 10095 is the material standard for heat resisting steels and nickel alloys. The chemical composition of stainless steel grades covered in the this standard include 1.4713, 1.4724, 1.4742, 1.4762, 1.4749, 1.4736, 1.4878, 1.4828, 1.4835, 1.4833, 1.4845, 1.4841, 1.4864, 1.4876, 1.4877, 1.4872, 1.4818, 1.4854, 1.4886, 1.4887 and 1.4821.
BS EN 10283 is the material standard for stainless steel castings for corrosion resisting purposes. The chemical composition of stainless steel grades covered in the this standard include 1.4011, 1.4008, 1.4317, 1.4405, 1.4411, 1.4525, 1.4309, 1.4308, 1.4552, 1.4409, 1.4408, 1.4581, 1.4412, 1.4446, 1.4458, 1.4527, 1.4584, 1.4416, 1.4587, 1.4588, 1.4593, 1.4347, 1.4470, 1.4468, 1.4517, 1.4417, and 1.4469.