UNS S17700 Square Bars, SS 17-7PH Square Bars, AISI SS 17-7PH Stainless Steel 17-7PH Square Bars Supplier, Manufacturer and Exporter in India
Din 1.4568 SS 17-7PH Square Bars, SS UNS S17700 Square Bars, Stainless Steel 17-7PH Square Rods, 17-7PH Stainless Steel 17-7PH Square Bars Suppliers in India.
GENERAL PROPERTIES
Stainless Grade 17-7 PH is a precipitation hardening stainless steel that provides high strength and hardness, excellent fatigue properties, good corrosion resistance, good formability, and minimum distortion upon heat treatment. The alloy provides valuable property combinations particularly well suited for aerospace applications. This special alloy also provides benefits for other applications requiring high strength and good corrosion resistance, as well as excellent properties for flat springs at temperatures up to 600°F (316°C).
APPLICATIONS
applications requiring good strength, corrosion resistance and mechanical properties up to 800 F in service.
used for very detailed, intricate parts due to its low distortion in heat treatment.
commonly found in a variety of springs and washers.
CORROSION RESISTANCE
Corrosion resistance of Type 17-7PH stainless steel in all heat treated conditions, like other types of stainless steels – will develop superficial rust in some environments. For example, in a marine atmosphere, stainless steels show evidence of rusting after relatively short exposure periods. However, after exposure of one or two years, the amount of rust present is little more than that present at six months. As with all martensitic steels, 17-7PH stainless steel may be subject to cracking when exposed under stress in environments containing hydrogen sulfide. Such applications are not recommended.
FORMABILITY
In Condition A, the alloy can be formed comparably to Type 301. It work hardens rapidly and may require intermediate annealing in deep drawing or in forming intricate parts. Springback is similar to that of Type 301. This alloy is extremely hard and strong in Condition C. Therefore, fabrication techniques for such material must be used.
WELDABILITY
The precipitation hardening class of stainless steel is generally considered to be weldable by the common fusion and resistance techniques. Special consideration is required to achieve optimum mechanical properties by considering the best heat-treated conditions in which to weld and which heat treatments should follow welding. This particular alloy is generally considered to have poorer weldability compared to the most common alloy of this stainless class, 17-4 PH stainless steel. A major difference is the high Al content of this alloy, which degrades penetration and enhances weld slag formation during arc welding. Also, the austenite conditioning and precipitation hardening heat treatments are both required after welding to achieve high strength levels. When a weld filler is needed, 17-7 PH is most often specified.
CHEMICAL PROPERTIES:
TYPE
Cr
Ni
Al
C
Mn
P
S
Si
17-7
min: 16.0
max: 18.0
min: 6.75
max: 7.75
min: 0.75
max: 1.50
0.09
max
1.00
max
0.05
max
0.03
max
1.00
max
MECHANICAL PROPERTIES:
Grade
Tensile Strength ksi (MPa)
Yield Strength 0.2% ksi (min)
Elongation %
Hardness (Rockwell) MAX
17-7
130
40
35
B85
PHYSICAL PROPERTIES:
Density
lbm/in3
Thermal Conductivity
(BTU/h ft. °F)
Electrical
Resistivity
(in x 10-6)
Modulus of
Elasticity
(psi x 106
Coefficient of
Thermal Expansion
(in/in)/
°F x 10-6
Specific Heat
(BTU/lb/
°F)
Melting
Range
(°F)
at 68°F: 0.2820
117 —-
30.7 at 68°F
28.5
8.5 at 32 – 212°F
0.1200 at 68°F to 212°F
2560-2625°F
Fittings and Flanges for Stainless Steel Pipe
Stainless steel piping systems can be joined by butt welding and, in the heavier 40S and 80S schedules, with threaded connections.
BUTT WELDING STAINLESS STEEL PIPE FITTINGS
Harsh steel stocks butt welding fittings in the following configuration.
Elbows 45 degree and 90 degree - long radius and short radius.
Return bends 180 - long radius and short radius.
educers - concentric and eccentric.
Tees - equal and reducing.
Caps.
Stub ends - Type B.
Advantages of stainless steel butt Weld fitting to the pipe are to keep pipes permanently leak proof. The continuous structure helps strength between pipes and fittings. It reduces pressure and also minimises the action of corrosion and erosion. Butt welding fittings can be supplied in either seamless or welded construction and are covered by specifications ASTM A403M and ASTM A815M for Duplex grades.
STAINLESS STEEL SCREWED AND SOCKET WELD FITTINGs
Stainless steel piping systems can be connected using stainless steel screwed fittings - BSP threaded ("150lb") low pressure stainless steel fittings and NPT class 3000 high pressure stainless fittings in Grade 316. Socket weld fittings are used in high pressure piping systems and available in grade 316L to suit schedule 80S wall thickness piping.
MANUFACTURING SPECIFICATIONS:
ASTM A182M (3000lb NPT and socket weld).
ANSI B16.3 (BSP dimensions)
ISO 4144 (BSP dimensions)
SQUARE BAR PRODUCT OVERVIEW:-
Stainless Steel Square Bar
Thickness Range of Stainless Plate
3/16″ THRU 4″ (LARGER SIZES AVAILABLE UPON REQUEST)
Grades
202, 304/304L, 316/316L,304H, 316H, 309/S, 310/S, 317/L, 321/H, 347/H, 904L, 330, 254SMO, 410. In duplex grades, we can supply 2205 and 2507. Some nickel Alloy such as alloy 200/201, C276, Alloy 400, Alloy 600, Alloy 625, Alloy 800H, Alloy 800HT, 254SMO, AL6XN and others Titanium alloys and copper alloys are also available
INVENTORY:-
X = Stocked Item
P = Call For availability square bar can be cut to size.
Square bar can be polished per customer specifications.
Square bar is stocked in Penn met 2000 for improved machinability.
Size in Inches
Wt per Ft
Wt per 12′
303
304/L
316/L
416
3/16″
0.120
1.440
X
X
X
P
1/4″
0.210
2.52
X
X
X
P
5/16″
0.330
3.96
X
X
X
X
3/8″
0.480
5.76
X
X
X
X
7/16″
0.650
7.80
X
X
X
X
1/2″
0.850
10.20
X
X
X
X
9/16″
1.080
12.96
X
X
X
X
5/8″
1.330
15.96
X
X
X
X
3/4″
1.910
22.92
X
X
X
X
7/8″
2.610
31.32
X
X
X
X
1″
3.400
40.80
X
X
X
X
1-1/8″
4.310
51.72
X
X
X
X
1-1/4″
5.320
63.84
X
X
X
X
1-3/8″
6.400
76.80
X
X
X
X
1-1/2″
7.600
91.20
X
X
X
X
1-3/4″
10.400
124.80
X
X
X
X
2″
13.600
163.20
X
X
X
X
2-1/4″
17.200
206.40
X
X
X
X
2-1/2″
21.300
255.60
X
X
X
X
3″
30.63
367.56
X
X
X
P
4″
54.40
652.80
X
X
X
P
PROCESSING:-
Customers can select a number of processing options to produce stainless steel bars to their exact specifications, reducing materiel costs, production time, scrap and internal handling.
Long Product Processing Services Overview
Square Bar Cutting
Products cut include Round Bar, Flat bar, Hex bar, Square bar, Tubing and Hollow Bar, Pipe, Angles, channels, Beams and Tees. Thickness range is 1/16″ to 28″ diameter
Square Bar Production Cutting
Penn Stainless can provide production cutting for product diameters up to 4″. We utilize Amanda Production Equipment to achieve these precision cuts with tight tolerances.
Square Bar Polishing
Products polished included all tubular products, with OD & ID polishing available, Round Bar, Square Bar, Hex & Flat bar, Angles, Uneven Leg Angles, beams, and other shapes.
TOLERANCES FOR COLD AND HOT SQUARE BARS
COLD FINISHED SQUARE BAR TOLERANCES:
CF Tolerances
Plus
Minus
1/8″ to 5/16″ (exclusive)
0.000
0.002
5/16″ to 1/2″ (exclusive)
0.000
0.003
1/2″ to 1″ (inclusive)
0.000
0.004
over 1″ to 2″ (inclusive)
0.000
0.006
over 2″ to 3″ (inclusive)
0.000
0.008
COLD FINISHED SQUARE BAR STRAIGHTNESS TOLERANCES:
CF: 1/16 inch in any 5 foot; but may not exceed 1/16 X (length in ft/5)
HOT FINISHED SQUARE BAR TOLERANCES:
HF Tolerances
Plus
Minus
Out of Sq
Over 7/8″ to 1″ (inclusive)
0.009
0.009
0.013
Over 1″ to 1-1/8″ (inclusive)
0.010
0.010
0.015
Over 1-1/8″ to 1-1/4″ (inclusive)
0.011
0.011
0.016
Over 1-1/4″ to 1-3/8″ (inclusive)
0.012
0.012
0.018
Over 1-3/8″ to 1-1/2″ (inclusive)
0.014
0.014
0.021
Over 1-1/2″ to 2″ (inclusive)
1/64
1/64
0.023
HOT FINISHED SQUARE BAR STRAIGHTNESS TOLERANCES:
HF: 1/8 inch in any 5 foot; but may not exceed 1/8 X (length in ft/5)
STAINLESS STEEL SQUARE BAR SPECIFICATIONS:
Stainless Steel Square Bar Specifications
ASTM A276
This specification encompasses cold-finished or hot-finished bars, including rounds, squares, and hexagons, and hot-rolled or extruded shapes, such as angles, tees, and channels in the more commonly used types of stainless steels.
ASTM A479
This specification includes cold and hot finished stainless steel bars, including rounds, squares, and hexagons, and hot-rolled or extruded shapes such as angles, tees, and channels.
ASTM A484
This specification includes wrought stainless steel bars, shapes, forgings, and billets or other semi-finished materials, except wire, for forging. The materials are available in four types of conditions.
ASTM A582
This specification includes cold or hot finished bars, which are suitable for machining processes. This specification includes rounds, squares, and hexagons, from common types of stainless free-machining steels.
ASTM B473
This specification includes nickel alloy bar & wire, which can be produced in a solution-annealed condition, stabilized-annealed condition, or annealed condition.
We export our PRECIPITATION HARDENING STAINLESS STEEL 17-7PH SQUARE BARS products to Western and Eastern Europe, Saudi Arabia, Bangladesh, United States, United Arab Emirates, Canada, Angola, Argentina, Austria, Azerbaijan, Pakistan, Peru, Chile, Spain, France, United Kingdom, Indonesia, Israel, Iran, Kuwait, Mexico, Malaysia, Nigeria, Serbia, Singapore, Taiwan, Chile, Venezuela, Ecuador, Netherlands, Brazil, Colombia, Ghana, Iran, Denmark, Poland, Australia, Afghanistan, Bahrain, Costa Rica, Egypt, Iraq, Jordan, South Korea, Kazakhstan, Sri Lanka, Lithuania, Norway, Oman, Philippines, Poland, Qatar, Russia, Vietnam, South Africa, Nigeria, Mexico, Turkey, Hungary, Algeria, Belarus, Belgium, Bhutan, Bolivia, Bulgaria, Croatia, Czech Republic, Estonia, Finland, Greece, Italy, Japan, Libya, Romania, Thailand, Trinidad & Tobago,Tunisia, Ukraine, Yemen, Hong Kong, Gabon, China, Portugal, Switzerland, New Zealand, Sweden, Slovakia, Kenya, Lebanon, Morocco, Mongolia etc. We are sure that we also can cover the requirements requested by your company you can email us at
harshsteel@ymail.com for your instant requirements.