AISI 4145h Mod Alloy Steel Bar

Product Description

AISI 4145H MOD Alloy Steel DescriptionAISI 4145H 120 ksi, API 7-1 Standards is a chromium molybdenum quality alloy steel specification. As a high tensile steel grade AISI 4145H MOD is primarily supplied in the hardened and tempered condition to 30-36HRc range to AISI 4145H MOD. With a slightly higher carbon content AISI 4145H MOD is similar to AISI 4140 in that it offers good ductility, shock resisting characteristics combined with resistance to wear.
Advantages1 QTC Qualification Test Coupon Passed
2 Superior Hardenability
3 Optimize chemical component
ApplicationsAISI 4145H MOD Steel is commonly used for a variety of applications in the oil and gas sector. Used often for the manufacture of down hole drilling tools such as drill collars. Other applications include gears, shafts for hydraulic presses, rolls for paper mills, pump shafts and tool holders.
Chemical Composition

Grade	C	Mn	Cr	Mo	Si	P	S	Ni	Cu	V	Al%	H max. ppm
Min.	0.420	0.800	0.850	0.150	0.150	-	-	-	-	-	0.020	-
Max.	0.450	1.200	1.200	0.250	0.350	0.025	0.025	0.250	0.300	0.300	0.035	1.500

Heat Treatment

Normalizing temperature	Time	Austenizing temperature	Time	Tempering temperature	Time
1600 - 1750ºF (871 - 960ºC)	Min. 60 minutes	1562 - 1675ºF (850 - 913ºC)	Min. 60 minutes	1050ºF (566ºC)	Min. 60 minutes

Oil or Polymer or Water. For Water Quenching, the temperature of water shall not exceed 38ºC (100ºF) at start of quench. For bath-type quenching, the temperature of water shall not exceed 49ºC(120ºF) at any time during the quench cycle. Mechanical Propertiesas per ASTM A370 - 20

Yield strength minimum (0.2% offset)	Tensile strength minimum	Elongation in 2" (minimum)	Reduction Area (minimum)
120,000 psi (828 MPa)	140,000 psi (966 MPa)	18%	45%

Quality Inspection Specimen test location & QTC Charpy V-notch impact at 21ºC / -32ºC Hardness as per ASTM E10-18: On surface / 1" below surface Volumetric NDE 100% - Ultrasonic Minimum hot work reduction ratio 4.0 to 1 Grain size should be #S or Finer as per ASTM E112 - 13 Surface inspection

---

>> Diamond Saw Blades Marble/Ceramic/Porcelain/Dekton/Quartz Stone/Sintered Stone X-Turbo Hot Pressed Diamond Tools Circular Saw Blade From 4inch to 9inch
>> Hot Dipped Galvanized Mesh 8X10cm Woven and Welded Gabion Basket for Gabion Wall
>> palm oil press machine
>> 2-300mm Thick high density polyethylene UHMWPE Sheet
>> Professional Plastic Injection Molding Supplier
>> Crane floor mat different corrugate hdpe ground mats drilling rig mats wear-resistant paving plate with good quality
>> Wooden Handle Octagonal Hammer Construction Hammer
>> Constant Voltage Switching Power Supply with Ce RoHS UL for LED Strip Lighting
>> 1325 2030 2040 6090 Woodworking CNC Router Machine for OEM and ODM Wood Carving
>> Vacuum Emulsifier Mixer for Cosmetic Industry Production Line
>> Custom Blank Package Deal Quarterback Training Flag 7 on 7 Sublimated Compression Set Jerseys 7v7 Football
>> Green Inflatable Jungle Slide Commercial Grade
>> Body Kit New Design Car Bumper Full Set For 2016+ Benz E Class W213 Upgrade E63S AMG Wide Body Kits With Hood Fenders Grille
>> Hot Selling Good Price Mini Small Excavator China Wholesale Compact Mini Excavator
>> Floor Mat PE Sheet Customized Gym Tatami Mat Recycling EVA Foam with Low Price
>> ERW Pipe High-Frequency Welding Tube Mill and Pipe Making Machine
>> Electric Heating Agitator Glue Agitator Quality Assurance
>> 2018+ 4x4 Spare Body Part Front Bumper Guard For D-max Accessories
>> Top Quality Agriculture Mist Duster/Mist Blower/Power Sprayer
>> Wholesale customized logo 1680D Melange polyester lunch bag insulated thermal backpack for thermos food delivery bag cooler bags