Product introduction

Type 416HT Stainless Steel is a stainless steel which is martensitic and has been hardened by heat treatment to higher strength and hardness levels. It has much better machining properties than the austenitic grades, but lower corrosion resistance.It has the highest machinability of any stainless steel at about 85% of that of a free-machining carbon steel. Martensitic stainless steels were designed to be hardenable by heat treatment and also corrosion resistant. Although Alloy 416HT and other martensitic stainless steels are not as resistant as austenitic or ferritic stainless, it still demonstrates good corrosion and oxidation resistance plus high strength in the hardened and tempered condition. Alloy 416HT  is easily machined, is always magnetic, and has low frictional properties that reduce galling and seizing.

Thickness(mm)	0.2-200mm
Width(mm)	600-2500mm
Grade	200 Series/300Series/400Series/500Series/600Series
Color	White Bright
Surface	2B, BA, No.4, HL, Mirror, 8K
Standard	201, 202, 301, 302, 303, 304, 304L, 316, 316L, 316N, 321, 309S, 310S, 317L, 904L, 409L
Edge	Mill Edge Slit Edge
Packing	Export Standard
Temper	Full hard, half hard, soft
Sample	Provided within 3 Days
Technique	Hot Rolled/Cold Rolled
Application	Bridges,shipbuilding,automobiles,structural steel plates,springs,etc.

Applications

Alloy 416HT is generally used for parts that are extensively machined and require the corrosion resistance of a 13% chromium stainless steel. Applications that generally use Alloy 416 include:

Electrical motors

Nuts and bolts

Pumps

Valves

Automatic screw machine parts

Washing machine components

Studs

Gears

Standards:

ASTM/ASME: UNS S41600

EURONORM: FeMi35Cr20Cu4Mo2

DIN: 2.4660

Corrosion Resistance:

Demonstrates corrosion resistance to natural food acids, waste products, basic and neutral salts, natural waters, and most atmospheric conditions

Less resistant that the austenitic grades of stainless steel and also the 17% chromium ferritic alloys

High sulfur, free-machining grades like Alloy 416HT are unsuitable for marine or other chloride exposure

Maximum corrosion resistance is achieved in the hardened condition, with a smooth surface finish

Heat Resistance

Fair resistance to scaling in intermittent service up to 1400oF (760oC) and up to 1247oF (675oC) in continuous service

Not recommended for use in temperatures above the relevant tempering temperature if maintenance of mechanical properties is important

Welding Characteristics

Poor weldability

If welding is necessary use Alloy 410 low hydrogen electrodes

Pre-heat to 392 to 572°F (200-300°C)

Follow immediately with annealing or re-hardening, or a stress relief at  1202 to 1247°F (650 to 675°C) 

Machinability

Has outstanding machinability

Best machinability is in the sub-critical annealed condition

Chemical Properties:

	C	Mn	Si	P	S	Cr
416HT	0.15 max	1.25 max	1.00 max	0.06 max	0.15 max	min: 12.0 max: 14.0

Mechanical Properties

Tempering Temperature (°C)	Tensile Strength (MPa)	Yield Strength 0.2% Proof (MPa)	Elongation (% in 50mm)	Hardness Brinell (HB)	Impact Charpy V (J)
Annealed *	517	276	30	262	–
Condition T **	758	586	18	248-302	–
204	1340	1050	11	388	20
316	1350	1060	12	388	22
427	1405	1110	11	401	#
538	1000	795	13	321	#
593	840	705	19	248	27
650	750	575	20	223	38
* Annealed properties are typical for Condition A of ASTM A582.
** Hardened and tempered Condition T of ASTM A582 – Brinell Hardness is specified range, other properties are typical only.
# Due to associated low impact resistance this steel should not be tempered in the range 400-

Physical Properties

Density kg/m3	Thermal Conductivity W/mK	Electrical Resistivity (Microhm/cm)	Modulus of Elasticity	Coefficient of Thermal Expansion µm/m/°C	Specific Heat (J/kg.K)	Specific Gravity
7750	24.9 at 212°F	43 at 68°F	200 GPa	9.9 at 32 – 212°F	460 at 32°F to 212°F	7.7
	28.7 at 932 °F			11.0 at 32 – 599°F
				11.6 at 32-1000°F

FAQ
Q:Will you delivery the goods on time?
A:Yes,we promise to provide best quality products and delivery on time.Honesty is our company's tenet.
Q:Do you provide samples?is it free or extra?
A:The sample could can provide for customer with free,but the courier freight will be covered by customer account.
Q:Do you accept the third party inspection?
A:Yes absolutely we accept.
Q:What are your main products?
A:Carbon steel,alloy steel,stainless steel plate/coil,pipe and fittings,sections etc.
Q：Can you accept the order of customzied?
A：Yes,we assure.