{"id":7137,"date":"2016-04-06T14:40:28","date_gmt":"2016-04-06T13:40:28","guid":{"rendered":"https:\/\/dijkkamp.questo.nl\/materials\/gg25-en-gjl-250\/"},"modified":"2022-06-21T15:16:46","modified_gmt":"2022-06-21T14:16:46","slug":"gg25-en-gjl-250","status":"publish","type":"page","link":"https:\/\/www.dijkkamp.nl\/en\/materials\/gg25-en-gjl-250\/","title":{"rendered":"GG25 \/ EN-GJL-250"},"content":{"rendered":"
<\/div>

Characteristics of GG25<\/h2>\n<\/div><\/div>

GG25 is the most commonly used cast iron alloy. This material offers a good combination of strength and abrasion resistance, but is still easy to machine and can be finished to a high standard. It is a lamellar cast iron with a predominantly pearlitic structure. Heat treatment to increase hardness is not recommended.<\/p>\n

GG25 is similar to GG20, but \u2013 due to the slightly finer structure \u2013 offers a higher tensile strength. This makes it suitable for machine components that are subjected to higher mechanical stresses.<\/p>\n<\/div><\/div>

Standards \/ designations<\/strong><\/h6>\n
\n
\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
EN 1561 SYM (EU)<\/th>\nEN-GJL-250<\/td>\n<\/tr>\n
\n
\n
\n<\/div>\n<\/td>\n<\/tr>\n
EN 1561 NR (EU)<\/th>\nEN-JL1040<\/td>\n<\/tr>\n
\n
\n
\n<\/div>\n<\/td>\n<\/tr>\n
DIN 1691 (DE)<\/th>\nGG25<\/td>\n<\/tr>\n
\n
\n
\n<\/div>\n<\/td>\n<\/tr>\n
WERKSTOFFNUMMER (DE)<\/th>\n0.6025<\/td>\n<\/tr>\n
\n
\n
\n<\/div>\n<\/td>\n<\/tr>\n
ASTM A48 (US)<\/th>\n40 B<\/td>\n<\/tr>\n
\n
\n
\n<\/div>\n<\/td>\n<\/tr>\n
ALT<\/th>\nGG 25, GG-25<\/td>\n<\/tr>\n
\n
\n
\n<\/div>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n<\/div><\/div><\/div><\/div><\/div>
\"\"<\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/section>
<\/div>
<\/div>
Mechanical properties<\/strong><\/h6>\n
\n
\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Tensile strength<\/th>\n\u03c3 B<\/td>\n250<\/td>\n[N\/mm2<\/sup>]<\/td>\n<\/tr>\n
\n
\n
\n<\/div>\n<\/td>\n<\/tr>\n
Elongation<\/th>\nA<\/td>\n0.3-0.8<\/td>\n[%]<\/td>\n<\/tr>\n
\n
\n
\n<\/div>\n<\/td>\n<\/tr>\n
Permanent limit of elongation<\/th>\n\u03c3 bB<\/td>\n450<\/td>\n[N\/mm2<\/sup>]<\/td>\n<\/tr>\n
\n
\n
\n<\/div>\n<\/td>\n<\/tr>\n
Compressive strength<\/th>\n\u03c3 dB<\/td>\n950<\/td>\n[N\/mm2<\/sup>]<\/td>\n<\/tr>\n
\n
\n
\n<\/div>\n<\/td>\n<\/tr>\n
Brinell hardness<\/th>\nHB30<\/sub><\/td>\n180-240<\/td>\n[Kg\/mm2<\/sup>]<\/td>\n<\/tr>\n
\n
\n
\n<\/div>\n<\/td>\n<\/tr>\n
Elasticity modulus<\/th>\nEo<\/sub><\/td>\n110<\/td>\n[kN\/mm2<\/sup>]<\/td>\n<\/tr>\n
\n
\n
\n<\/div>\n<\/td>\n<\/tr>\n
Shear stress<\/th>\n\u03c3aB<\/sub><\/td>\n290<\/td>\n[N\/mm2<\/sup>]<\/td>\n<\/tr>\n
\n
\n
\n<\/div>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n<\/div><\/div>
<\/div>
Chemical composition<\/strong><\/h6>\n
\n
\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Carbon<\/th>\nC<\/td>\n2.9-3.65<\/td>\n[%]<\/td>\n<\/tr>\n
\n
\n
\n<\/div>\n<\/td>\n<\/tr>\n
Silicon<\/th>\nSi<\/td>\n1.8-2.9<\/td>\n[%]<\/td>\n<\/tr>\n
\n
\n
\n<\/div>\n<\/td>\n<\/tr>\n
Manganese<\/th>\nMn<\/td>\n0.5-0.7<\/td>\n[%]<\/td>\n<\/tr>\n
\n
\n
\n<\/div>\n<\/td>\n<\/tr>\n
Sulphure<\/th>\nS<\/td>\n0.10 max.<\/td>\n[%]<\/td>\n<\/tr>\n
\n
\n
\n<\/div>\n<\/td>\n<\/tr>\n
Phosphorus<\/th>\nP<\/td>\n0.30 max.<\/td>\n[%]<\/td>\n<\/tr>\n
\n
\n
\n<\/div>\n<\/td>\n<\/tr>\n
Iron<\/th>\nFe<\/td>\nRemainder<\/td>\n<\/td>\n<\/tr>\n
\n
\n
\n<\/div>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n<\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/section>
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Of course we cannot tell all \u2018secrets\u2019 on our website. For more information or specific information, please do not hesitate to contact us.<\/p>\n<\/div><\/div>

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Apply for an offer<\/span><\/a><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/section>\n","protected":false},"excerpt":{"rendered":"Characteristics of GG25 GG25 is the most commonly used cast iron alloy. This material offers a good combination of strength and abrasion resistance, but is still easy to machine and can be finished to a high standard. It is a lamellar cast iron with a predominantly pearlitic structure. Heat treatment to increase hardness is not...","protected":false},"author":11,"featured_media":0,"parent":4449,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_seopress_robots_primary_cat":"","_seopress_titles_title":"GG25 \/ EN-GJL-250 | Gieterij Dijkkamp","_seopress_titles_desc":"GG25 is the most commonly used cast iron alloy. This material offers a good combination of strength and abrasion resistance, but is still easy to machine.","_seopress_robots_index":"","footnotes":""},"class_list":["post-7137","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.dijkkamp.nl\/en\/wp-json\/wp\/v2\/pages\/7137","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.dijkkamp.nl\/en\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.dijkkamp.nl\/en\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.dijkkamp.nl\/en\/wp-json\/wp\/v2\/users\/11"}],"replies":[{"embeddable":true,"href":"https:\/\/www.dijkkamp.nl\/en\/wp-json\/wp\/v2\/comments?post=7137"}],"version-history":[{"count":0,"href":"https:\/\/www.dijkkamp.nl\/en\/wp-json\/wp\/v2\/pages\/7137\/revisions"}],"up":[{"embeddable":true,"href":"https:\/\/www.dijkkamp.nl\/en\/wp-json\/wp\/v2\/pages\/4449"}],"wp:attachment":[{"href":"https:\/\/www.dijkkamp.nl\/en\/wp-json\/wp\/v2\/media?parent=7137"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}