http://www.ec21.com/ec-market/aisi 4145h.html http://chinaeast001.en.ec21.com/Drill_Collar_Spiral_Drill_Collar--4031872_4031894.htmlAISI 4145H 3) Size OD: 3 1/8 ,3 1/2 ,4 1/8 ,4 1/2 ,5 ,6 ,6 1/4 ,6 1/2 ,6 3/4 ,7 ,7 1/4 ,7 3/4 ,8 ,8 1/4 ,9 ,9 1/4 ,9 3/20091228 http://vivianzhaoyajie.en.ec21.com/Integral_Spiral_Blade_Stabilizer--3587151_3598219.html Integral spiral blade stabilizer can be divided into string type and near bit type. It is made of AISI 4145H allo20091226 http://sunshuliali.en.ec21.com/Drill_Collar--3968884_3968896.html The collars are made of AISI 4145H forging or finish rolling alloy structural steel. The drill collar are trepanned20091223 http://shiruida111.en.ec21.com/Oilfield_Drilling_Tools--3981433_3981434.htmlAISI 4145H forging or finish rolling alloy structural steel. Trepanned and drifted to API Spec7. API and ISO certifie20091223 http://wuyongchuan.en.ec21.com/Drill_Collar--3966336_3967183.html With AISI 4145H forging or alloy constructional steel production-manufacturing, ensuring API SPEC 7 standard requireme20091127 http://shiruida.en.ec21.com/Drill_Collar--3160047_3950123.html The collars are made of AISI 4145H forging or finish rolling alloy structural steel. The drill collar are trepanned an20091119 http://sanhechina.en.ec21.com/Lifting_Subs--3808280_3808331.htmlAISI 4145H modified chromium-molybdenum alloy steel according to API Specification 7. All threads are phosphated, coppe20091105 http://upcpetro.en.ec21.com/Drill_Collar--2373558_2374864.html 1. Size: 3-1/8" - 9 1/2" 2. Products description Our drill collar are made of AISI 4145H or 4145H modified alloy stee20091102 http://stgeorge.en.ec21.com/API_Heavy_Weight_Drill_Pipes--2714260_2714307.html Heavy weight drill pipes we produce are integral. Materials are from AISI 4145H modified drill collar material.Hardban20091102 http://dyh79.en.ec21.com/Drill_Collar_Spiral_Drill_Collar--3893502_3893503.htmlAISI 4145H modified steel, and are supplied in the as rolled surface finish condition. Alternative surface finishes ca20091027 http://wuxiugen0827.en.ec21.com/Spiral_Drill_Collars--3875298_3875303.html Material: AISI 4145H With sprial groove, slip and elevator groove. API SPEC7-1 20091014 http://drillingpart.en.ec21.com/Drill_Collar--3825695_3825716.htmlAISI 4145H chrome molybdenum steel is used, which can keep effective control to the chemical compositions and microe20090917 http://penitrate.en.ec21.com/Drill_Collar--1714920_1714921.htmlfor oil and gas industry; API,ISO,Q1 certified; Steel Grade:AISI 4145H or AISI 4145H modified; Sizes:all sizes. 20090819 http://semiphoebe.en.ec21.com/Drill_Collar--3671464_3671465.htmlAISI 4145H modified steel, and are supplied in the as rolled surface finish condition. Alternative surface finishes ca20090804 http://hisinscl.en.ec21.com/Square_Kelly--3629718_3647552.html We offer square and hexagonal kelly. kellys are available up to 14m long. Our kellys are made from AISI 4145H modif20090729 http://wendywelong.en.ec21.com/HWDP--3025804_3025818.html Standard: AISI 4142H-4145H MOD Based on API standards' guidelines, Welong ensure each product from our mill is fully20090630 http://fancynw.en.ec21.com/Stabilizer--3153862_3155364.html Stabilizer Material: AISI 4145H, AISI 4145H MOD Alloy Steel, AISI 4140-4142, AISI 4340 Specification: OD: 6 -28 We of20090622 http://sxweigao.en.ec21.com/Integral_Heavy_Weight_Drill_Pipe--3286097_3289722.html Made from AISI 4145H alloy steel and fully heat treated, all its physical properties conform to the latest API Spec20090612 http://rolexmetal.en.ec21.com/S355J2_N_S355J2G3_N_Forged--2608939_3592479.html S355J2+N / S355J2G3+N Forged Round Bar We are Stockholder & Distributors of AISI 1045/SAE 1045, AISI 4130/SAE 20090606 http://mary139344.en.ec21.com/Heavy_Weight_Drill_Pipe--1310215_2693149.html Integral heavy weight drill pipes are manufactured from AISI 4142H-4145H modified drill collar material according to S20090329 http://fyperm.en.ec21.com/Heavy_Weight_Drill_Pipe--3433696_3433758.html Standard: API Spec 7 Material: AISI 4145H Alloy Steel Specification OD: 3-1/2", 4-1/2", 5", 5-1/2" Type: 20090324 http://shelley830.en.ec21.com/Stabilizer_forging--1682042_1795912.html Forgings made from AISI 4145H or AISI 4145H Modfied for stabilizers. Heat treated and machined as requirements from th20090311 http://cngc.en.ec21.com/Drill_Collar--3357904_3358073.htmlAISI 4145H or 4145H Modified alloy steel in accordance with API Specification 7-1, API Recommended Practice 7G and API 20090220 http://veigao.en.ec21.com/IntegralHeavyWeightDrillPipe--3338175_3350453.html Intergral heavy weight drill pipe API SPEC 7-1 Made from AISI 4145H alloy steel and fully heat treated, all its ph20090218 http://xbdxwhb.en.ec21.com/Stabilizer--3328961_3328962.htmlAISI 4145H modified alloy steel or non-magnetic alloy steel,the press button type or applied tungsten carbide hardbandi20090203 http://zx7575111.en.ec21.com/Drill_Collar--3047303_3047304.htmlAISI 4145H alloy structural steel to carry on the deep hole processing, before thread and spiral groove processing agai20080922 http://drillcollar.en.ec21.com/Kelly--2903542_2903622.html Kelly Product features: Made from AISI 4145H-4145H Mod. alloy bars that are quenched and tempered full length, whic20080708 http://sslj1022.en.ec21.com/Stabilizer--1774936_1774937.htmlAISI 4145H Modified alloy steel or Non-magnetic alloy steel, the pressed button type or applied Tungsten Carbide hard b20080129 http://waxflz.en.ec21.com/Heavy_Weight_Drill_Pipe--2224322_2299535.html Heavy Weight Drill Pipe, Size: 2 7/8" 3 1/2" 4 1/2" 5" 5 1/2" Material AISI 4145H Integral heavy weight drill pipes a20091114 http://rachel0313.en.ec21.com/Drill_Pipe--1723216_1723217.htmlAISI 4145H and are supplied in the" as rolled" surface finish condition. Alternative surface finishes can be provided.D20080115