Promoly tubing is superior to plain carbon tubing and exceeds the industry specs for 4 tubing. The chemical composition of aisi 4 alloy steel is listed in the following table. It has low carbon content, and can be welded easily. Tw stocks a wide range of sizes in 4 steel certified to ams 6350 6351 annealed and ams 6345 for normalized or otherwise heat treated.
We do shearing and cutting ams 6345 mils18729 ams 6350 ams 6351 astm 505506507 ams 2252 ams 2301 astm a 829. Difference between astm and ams bar machinability and. Aisi 4 steel uns g40, also known as 4 chromoly steel, is a chromemolybdenum series low alloy steel with high strength, toughness and hardenability, usually used in quenched and tempered condition. Metals unlimited aerospace, inc is the leading supplier of aircraft alloys including ams 6350. It is also known for its hardenability, strength and ductility. Rotary flap peening of metal parts ams 2590 is a new specification that was released in december 2010. Drawnovermandrel dom tubing is not made from any specific alloy it can be used with mild steel, chromoly or another alloy, such as sae 1020 or 1026 steel. Steel, corrosion and heat resistant, welded tubing 12cr 8.
Part number ams6350 including related part numbers and nsn starting at page 1. Contact us to work with our knowledgeable staff and receive an immediate response to all your requests. Nickel alloy, corrosion and heat resisitant, sheet, strip, and plate, 62ni 21. Tw stocks a wide range of sizes in 4 steel certified to ams 63506351 annealed and ams 6345 for normalized or otherwise heat treated. Ams2301 steel cleanliness, aircraft quality magnetic particle inspection procedure. In addition, using promoly offers distinct advantages to frame builders. Ams standards for steel materials total materia article. The 4 alloy steel sheet has been annealed, has an unpolished mill surface, meets sae aerospace material specifications ams 6350 standards, and has a standard tolerance. Ams6372 cdsr 45 stress relieved, magnuflux quality. When customers call us for 4, sometimes they also share how they struggle with price volatility. Aisi 4 alloy steel contains chromium and molybdenum as strengthening agents.
Bar ams 2301 amss6758 ams 2304 astm a322 ams 6348 astm a331 ams 6370 mils6758 sheet and plate ams 6345. Aq e4 norm aisi e4 aircraft quality e4 aisi e4 crmo. Ams2301 steel cleanliness, aircraft quality magnetic. Milr81841 was released in 1972 and it has had an interesting. The global leader in specialty metals ams 5662 vs ams 5663 vs api 6a. We are a preeminent alloy steel distributor who has proudly serviced the needs for over 30 years as metal and alloy suppliers to the worlds major aerospace and aeroengine manufacturers.
This specification covers an aircraftquality, lowalloy steel in the form of bars. Dom is a process that takes the rough coldformed steel tube and continues. Titanium specification ams 4967 performance titanium group. Amss6758 ams 6370 ams 2301 color marking normalized barsends painted pink heat treated barsends painted white this chromiummolybdenum alloy is one of the most widely used aircraft steels because of its combination of weldability, ease of fabrication, and mild hardenability. Ams 6345, ams 6348, ams 6350, ams 6351, ams 6360, ams 6361, ams 6362, ams 6370, ams 6528, astm a29, astm a322, astm a331, astm a506, astm a507, astm a5, astm a519, astm a646, astm a752, astm a829, mils18729, mils6758 aisi 4 is a low alloy steel containing molybdenum and chromium as strengthening agents. It was written by a team led by peter bailey, formerly a staff engineer with general electric aircraft engines, to provide technical improvements to milr81841. Sae aisi 4 chromoly steel, alloy material properties. The 4 alloy steel grade contains chromium and molybdenum for strength and hardenability, with lower carbon content than 4140 alloy steel to provide better weldability. A 447a 447m93 1998 standard specification for steel castings, chromiumnickeliron alloy 2512 class, for hightemperature service a 450a 450m02 standard specification for general requirements for carbon, ferritic alloy, and austenitic alloy steel. Mastersource offers a complete line of aq 4 normalized inventory as noted below. Difference between astm and ams bar machinability and tolerances btrueblood mechanical 28 feb 12. Ams s6758 ams 6370 ams 2301 color marking normalized barsends painted pink heat treated barsends painted white this chromiummolybdenum alloy is one of the most widely used aircraft steels because of its combination of weldability, ease of fabrication, and mild hardenability.
Dom tubing is often incorrectly referred to as seamless tubing because the seam is almost invisible. Saeams 5862 155 ph stainless steel sheet, strip, and plate k or later saeams 6345 4 alloy steel c or later saeams 6346 4 alloy steel b or later saeams 6348 4 alloy steel d or later saeams 6349 4140 alloy steel d or later saeams 6350 4 alloy steel m or later saeams 6351 4 alloy steel j or later. Grade alloy 4, aisi 4, uns g40 castle metals stocks a wide range of alloy 4 in bar distributed globally from our distribution centers in north america, as well as in the u. It is one of the most used aircraft steels because of 4s ease of manufacturing and weldability. Alloy steel 4 4 bar, ams 6370, 4 tube, ams 6371 the hardenability and weldability of alloy 4 are considered equivalent to 8630 mils6250. Tw metals corporate headquarters the arboretum, suite 204 760 constitution drive exton, pa 19341 16104580.
It is also vacuum degassed to meet the magnetic particle inspection standards of ams 2301. The consistency of the od and wall makes setup easier and. If additional abrasion and wear resistance are needed this material can be provided in a nitrided condition. Aisi sae 4 alloy steel can be made into steel plate, steel sheet, round and flat steel bar, steel pipe and tube, etc. Future acquisitions for this material should refer to the following saeams specifications, depending on which condition is des as indicated below. We specialize in aircraft grade metals in a variety of customer specifications, as well as.