Stainless Steel 17-4 PH Angles Manufacturer in Mumbai, India

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ASTM A276 Stainless Steel 17-4 PH Angles Manufacturers & Suppliers in India.

Stainless Steel 17-4 PH Angles Manufacturer in Mumbai, India

 

Mahavirmetalsindia is an exceedingly acclaimed exporter and supplier of Stainless Steel 17-4 PH Angle that are being sourced by utilizing predominant nature of crude material. As for a few stainless steel reviews, these 317L Stainless Steel Angle is the run of the mill 18/8 in the group of stainless. Otherwise called UNS S30400, our SS 321/321H Angle is administrator review for the use in any of the welding wanders. Not only for the reason of its fantastical welding highlights, however also for the reason of its impartial austenitic structure, these SS 317L is generally utilized as a part of compositional, transportation and modern machines.

17-4 PH is a molybdenum bearing, low carbon content "L" grade austenitic stainless steel that provides improved corrosion resistance over 304L and 316L stainless steels Angle. The low carbon provides resistance to sensitization during welding and other thermal processes. 17 4 stainless steel angle is non-magnetic in the annealed condition but may become slightly magnetic as a result of welding. 317L has excellent corrosion resistance in a wide range of chemicals, especially in acidic chloride environments such as those encountered in pulp and paper mills. Increased levels of chromium, nickel and molybdenum compared to 17 4 ss angle improve resistance to chloride pitting and general corrosion.

Nuts are graded with strength ratings compatible with their respective bolts; for example, an ISO property class 10 nut will be able to support the bolt proof strength load of an ISO property class 10.9 bolts without stripping. Likewise, SAE class 5 nuts can support the proof load of an SAE class 5 bolt, and so on. A wide variety of nuts exists, from household hardware versions to specialized industry-specific designs that are engineered to meet various technical standards.

Alloy 17-4 PH is a titanium stabilized austenitic stainless steel with good general corrosion resistance. It has excellent resistance to intergranular corrosion after exposure to temperatures in the chromium carbide precipitation range of 800 – 1500°F (427 – 816°C). The alloy resists oxidation to 1500°F (816°C) and has higher creep and stress rupture properties than alloys 304 and 304L. It also possesses good low temperature toughness. Alloy ss17 4ph (UNS S 32109) is the higher carbon (0.04 – 0.10) version of the alloy. It was developed for enhanced creep resistance and for higher strength at temperatures above 1000oF (537°C). In most instances, the carbon content of the plate enables dual certification.

SS 17-4 PH Angle Chemical Composition

Grade Cr Ni Mn Si C P S Fe
17-4 PH min. 15.0 3.0 1.0 1.0
max. 17.5 5.0 1.0 1.0 0.070 0.040 0.030 73

17-4 PH stainless steel Angle Physical Properties

Properties Metric Imperial
Density 7.75 g/cm3 0.280 lb/in3

SS17 4ph Mechanical Properties

The mechanical properties of annealed grade 17-4 stainless steel are displayed in the following table.
Properties Metric Imperial
Shear modulus 77.4 GPa 11200 ksi
Elastic modulus 190-210 GPa 27557-30458 ksi
Poisson’s ratio 0.27-0.30 0.27-0.30
Hardness, Brinell 352 352
Hardness, Knoop (estimated from Rockwell C) 363 363
Hardness, Rockwell C 36 36
Hardness, Vickers (estimated from Rockwell C) 349 349

174 PH Stainless Thermal Properties

The following table outlines the thermal properties of grade 17-4 stainless steel.
Properties Metric Imperial
Thermal expansion co-efficient (@ 21-93°C/69.8-199°F) 10.8 µm/m°C 6.00 µin/in°F
Thermal conductivity ( for condition H 900 at 149ºC. 22.6 W/mK for H 900 at 482ºC) 17.9 W/mK 124 BTU in/hr.ft².°F

Other Designations

Other designations that are equivalent to grade 17-4 stainless steel are listed in the following table.  
AISI 630 ASTM A693 (630) AMS 5342 MIL-S-81506
AMS 5604 ASTM A705 (630) AMS 5343 SAE J467 (17-4PH)
AMS 5622 MIL C-24111 AMS 5344 ASME SA705
AMS 5643 MIL P-47183 AMS 5355 ASME SA564
ASTM A564 (630) MIL S-81591 AMS 5825

Heat Treatment

Grade 17-4 PH stainless steel is soaked at 1038°C (1900°F) for 30 min and cooled below 16°C (60°F) for complete martensite transformation in the condition A. The condition A material is treated at 482°C (900°F) for 1 h followed by cooling. Solution treated material is soaked for 4 h at specific temperature in H925, H1025, H1075, H1100, and H1150 conditions followed by cooling in air.

Solution treated material is soaked at 760°C (1400°F) for 2 h in the H1150M condition followed by cooling. It is again heated at 620°C (1150°F) for 4 h followed by cooling.

Forging

Grade 17-4 PH stainless steel is forged at 1010°C (1850°F). Before performing this process, it is soaked at 1177°C (2150°F). Post-work solution treatment should be performed before final hardening.

Hot Working

Grade 17-4 stainless steel can be hot worked using common processes. It is treated at 1038°C (1900°F). Post-work solution treatment should be performed before final hardening.

Cold Working

Grade 17-4 stainless steel can be cold worked using common techniques in spite of its high initial yield strength.

Annealing

Grade 17-4 stainless steel is annealed at 1038°C (1900°F) for 0.5 h followed by cooling rapidly.

Hardening

Grade 17-4 stainless steel has high ductility, and can be formed using all conventional techniques. Powerful equipments are required for forming this alloy because it is stronger than the regular steel. Heavy-duty lubricants are used during cold working.

Applications

Grade 17-4 stainless steel is used in the following applications:

  • Nuclear reactor
  • Aircraft and gas turbines
  • Oil field
  • Chemical process components
  • Paper mill

Benefits

  • Higher creep stress and rupture properties when compared with 304
  • Ideal for high temperature service
  • Overcomes sensitization and intergranular corrosion concerns
  • Can be used in elevated temperature applications for ASME Boiler and Pressure Vessel Code applications
  • Due to stabilisation the material offers better overall corrosion resistance when compared to 304/304L
  • Excellent mechanical properties

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