Steel Grade Equivalent Table (EN, SAE/AISI, UNS, DIN, BS, UNI, JIS) The table below compares common grades of materials from various international specifications. But "oils ain't oils", as the saying goes, and there are two significantly different types of "250". Probably the most common grade of steel used is often referred to as "Grade 250" or just "250". LC200N. Spyderco and Cold Steel frequently utilize this steel and the chart below shows why. COVERING CAST AND EQUIVALENT FORGED VALVES Important Note: Data provided on this chart is for information purposes only. 440A, 440B, 440C. Table of Steel Equivalent Grades (EN, SAE/AISI, UNS, DIN, BS, UNI, JIS) The table below compares steel equivalent grades of materials from various international specifications. Standard martensitic grade for low-duty hardened applications. Always consult current ASME or API official publications to verify information and cross reference data. 630 Valve forging casting body material reference chart equivalent fittings Author: Australian Pipeline Valve Subject: Valve forging casting body material reference chart equivalent fittings Keywords: Valve forging casting body material reference chart equivalent fittings grade steel 316 304 A105 LF2 WCB F11 F22 F5 WC5 WC9 Created Date High hardness and toughness grade, primarily for shafting. LC200N is an amazing steel! 416. Free-machining bar grade. † ASTM A216/A352 permits maximum carbon content of 0.30% for grade LCB/WCB but APV only allows 0.25% maximum. Note that materials compared are the nearest available grade and may have slight variations in actual chemistry. With 90% the corrosion resistance of H1, you also get much improved edge retention. © 2003 - 2020 Database of Steel and Alloy (russian title is the Marochnik) Administration of the Marochnik is not responsible for the content's use. Note that materials compared are the nearest available grade and may have slight variations in actual chemistry. Handbook of Comparative World Steel Standards Getting Started With This Book Comparing steel standards is not an exact science and there is no foolproof method. Charpy V-notch impact tests 7 Measured data compared to expected For low-carbon structural steel, normally expect Charpy V-notch impact energy ~100 J at room temperature AS 3678 grade 400 specifies CVN avg 40 J at –20 C Measured on as-received sample: avg 8 J (8.1 0.4 J) After baking 24hrs at 200 C: avg 10 J (10.0 1.0 J) This represents very severe embrittlement, very 431. Steel grades standards by country. Cold finished steels are covered by Australian Standard AS1443 or similar overseas alternatives. For alloys in general (including steel), unified numbering system (UNS) of ASTM International and the Society of Automotive Engineers (SAE). Higher hardness martensitic grade for cutlery, cutting tools and dies. 420. Equivalent DIN DIN W. No Application Carbon Steel CS C-Mn-Fe A105N K03504 A216-WCB C22.8 DIN 17243 1.0460 General non-corrosive service from -20ºF (-29ºC) to 800ºF (427ºC) A352-LC1 A352-LCB A352-LCC Low Temperature Alloy Steel Nickel Steel 3.1/2Ni A350-LF3 K32025 A352-LC3 10Ni14 1.5637 -150ºF (-101ºC) to 650ºF (340ºC) Grade A F11501 GC200/FC200 D4301/G5501 - GG15 1691 0.6015 - Grade B F12102 GC250/FC250 D4301/G5501 - GG25 1691 0.6025 - A131 Structural Steel for Ships Grade A K02300 SWS400A/SM400A D3515/G3106 - St44-2 17100 1.0044 - Grade B K02102 SWS400B/SM400B D3515/G3106 - R St44-2 17100 1.0044 (1) Precipitation Hardening Stainless Steel. 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