Precipitation Hardening Stainless Steel 11-10PH / 13-8PH / 15-5PH / 17-4 PH / 17-7PH
Precipitation Hardening SS 11-10PH / 13-8PH / 15-5PH / 17-4 PH / 17-7PH / 08X14H7M / Custom 450, Custom 465 Products Supplier
SAE Type 630 stainless steel is a type of martensitic precipitation-hardening stainless steel that is more often called 17-4 PH or just 17-4. It is also known as UNS S17400. It has between 15–17.5% chromium, 3–5% nickel, and 3–5%, copper. It gets its name from the fact that it is made up of about 17% Chromium and 4% Nickel. It also contains 4% Copper and 0.3% Niobium. 17-4 PH is also known as stainless steel grade 630.
17-4 stainless is martensitic stainless steel that gets stronger with age and is also resistant to corrosion. A short, simple, and low-temperature treatment are all it takes to make something harder. 17-4 is much easier to weld than most martensitic stainless steels, like type 410. Because it is strong, doesn’t rust, and is easy to work with, 17-4 stainless can be a cheaper alternative to high-strength carbon steels and other stainless grades.
When the metal is heated to 1900°F for solution treatment, its structure is austenitic, but when it cools to room temperature, its structure changes to a low-carbon martensitic structure. This change won’t be done until the temperature goes down to 90°F. The alloy gets stronger when it is heated to temperatures between 900 and 1150°F for one to four hours. This process of hardening also tempers the martensitic structure, making it more flexible and tough.
Choose Lakshya Steel for all your Precipitation Hardening Stainless Steel needs and benefit from our commitment to delivering excellent products and service. In addition to Precipitation Hardening, we also offer other Stainless Steel Products.
Precipitation Stainless Steel Products
Precipitation Stainless Steel 11-10 PH / 13-8 PH/ 15-5 PH / 17-4 PH / 17-7 PH / Custom 450 and 465 Rod & Bars
Precipitation Stainless Steel 11-10 PH / 13-8 PH/ 15-5PH / 17-4 PH / 17-7PH Hex Bar/ Custom 450 AND 465 UNS S15500 / S17400 Hex Bar
Precipitation Stainless Steel 11-10 PH / 13-8 PH / 15-5PH / 17-4 PH / 17-7PH Square Bar / Custom 450 and 465 Square Bar
Precipitation Stainless Steel 11-10 PH / 13-8 PH / 15-5PH / 17-4 PH / 17-7PH / Custom 450 and 465 Plates/Sheet
Precipitation Stainless Steel 11-10 PH / 13-8 PH / 15-5PH / 17-4 PH / 17-7PH / Custom 450 and 465 Flanges
17-4 PH Stainless Steel:
17-4 PH Chemical Composition:
| Chemical Element | % Present |
| Carbon (C) | 0.0 – 0.07 |
| Chromium (Cr) | 15.00 – 17.00 |
| Manganese (Mn) | 0.0 – 1.50 |
| Silicon (Si) | 0.0 – 0.70 |
| Phosphorous (P) | 0.0 – 0.04 |
| Sulphur (S) | 0.0 – 0.03 |
| Nickel (Ni) | 3.00 – 5.00 |
| Copper (Cu) | 3.00 – 5.00 |
| Molybdenum (Mo) | 0.0 – 0.60 |
| Niobium (Columbium) (Nb) | 0.0 – 0.45 |
| Iron (Fe) | Balance |
17-4 PH SS Physical Properties:
| Annealed | -H900 | |
| Density | 0.280 lb/in3 | 0.282 lb/in3 |
| Ultimate Tenslie Strength | 160 ksi | 210 ksi |
| Yield Tensile Strength | 145 ksi | 200 ksi |
| Fatigue Strength | N/A | 98 ksi |
| Shear Strength | N/A | 120 ksi |
| Shear Modulus | N/A | 11,000 ksi |
| Hardness Rockwell | Brinell | C36 | 363 | C40-47 | 388-444 |
| Elongation at Break Percentage | 6-15% | 12% |
| Reduction of Area | 30-60% | 35-40% |
| Modulus of Elasticity | N/A | 28,000 ksi |
| Poisson’s Ratio | 0.28 | 0.28 |
| Machinability Percentage | 45% | N/A |
| Melting Point | 2,550-2,620 °F | 2,550-2,620 °F |
| Specific Heat | 1.1 x 10^-1 BTU/lb-°F | 1.1 x 10^-1 BTU/lb-°F |
| Thermal Conductivity | 116 BTU-in/hr-ft^2-°F | 116 BTU-in/hr-ft^2-°F |
| Electrical Conductivity | 2.3% IACS | 2.3% IACS |
17-4 PH Stainless Steel Applications:
Gate Valves Chemical Processing Equipment Pump Shafts Gears Ball Bearings Bushings Fasteners
|
ASTM |
AMS |
ASME |
|
A564 |
5604 |
SA564 |
|
A693 |
5622 |
SA693 |
|
A705 |
5643 |
SA705 |
|
5825 |
15-5 PH Stainless Steel – AMS 5659:
15-5 PH stainless steel is a type of stainless steel that is known for its high strength, hardness, and corrosion resistance. It contains approximately 15% chromium and 5% nickel, and can be further strengthened through a single low-temperature heat treatment. Compared to 17-4 PH stainless steel, 15-5 PH has better transverse toughness and ductility, as well as better mechanical properties in larger cross-sections and better forgeability. It is also readily weldable and can be machined in a variety of thermal conditions. Lakshya Steel is a leading distributor and supplier of 15-5 PH stainless steel in a variety of forms, including round bar, flat bar, square bar, plate, sheet, block, and billet. See below for our product size ranges.
Common Trade Names
PH15-5
XM-12
UNS S15500
15Cr-5Ni
DIN X4CrNiCuNb164
X5CrNiCu15-5
DIN 1.4540
DIN 1.4545
SAE 15-5
15-5 PH Chemical Composition:
|
Carbon |
0.07 max |
|
Manganese |
1.00 max |
|
Phosphorus |
0.040 max |
|
Sulfur |
0.030 max |
|
Silicon |
1.00 max |
|
Chromium |
14.00 – 15.50 |
|
Nickel |
3.50 – 5.50 |
|
Copper |
2.50 – 4.50 |
|
Columbium plus Tantalum |
0.15 – 0.45 |
15-5 ph Stainless steel Mechanical Properties:
| Condition | Tensile | Yield 0.2% offset | Elongation (%in 2″) | Reduction of Area | Brinell Hardness | Rockwell Hardness |
| Ann | 363 Bhn | C33 | ||||
| H900 | 190,000 psi | 170,000 psi | 6% | 15% | 388 Bhn | C40 |
| H1025 | 155,000 psi | 145,000 psi | 8% | 27% | 331 Bhn | C35 |
| H1075 | 145,000 psi | 125,000 psi | 9% | 28% | 311 Bhn | C32 |
| H1150 | 135,000 psi | 105,000 psi | 11% | 30% | 277 Bhn | C28 |
| H1150-M | 115,000 psi | 75,000 psi | 14% | 35% | 255 Bhn | C25 |
Applications of 15-5PH:
Aerospace, Automotive, Chemical processing, Food processing, Medical devices, Oil and gas, Petrochemical, Power generation, Semiconductor manufacturing, Transportation, Nuclear reactor components
13-8 PH Stainless Steel:
13-8 ph Stainless Steel Chemical Composition:
| Symbol | Element | Min % | Max % |
| C | Carbon | 0.05% | |
| Mn | Manganese | 0.10% | |
| Si | Silicon | 0.10% | |
| P | Phosphorus | 0.010% | |
| S | Sulfur | 0.008% | |
| Cr | Chromium | 12.25% | 13.25% |
| Ni | Nickel | 7.50% | 8.50% |
| Mo | Molybdenum | 2.00% | 2.50% |
| N | Nitrogen | 0.010% | |
| Al | Aluminum | 0.90% | 1.35% |
| Fe | Iron | Balance |
SS 13-8 ph Mechanical Properties:
| Condition | Tensile | Yield 0.2% offset | Elongation (%in 2″) | Reduction of Area | Brinell Hardness | Rockwell Hardness |
| Ann | 175 ksi max | 363 max | ||||
| H950 | 220 ksi | 205 ksi | 10% | 45% | C45 min | |
| H1000 | 205 ksi | 190 ksi | 10% | 50% | C45 min | |
| H1025 | 185 ksi | 175 ksi | 11% | 50% | ||
| H1050 | 175 ksi | 165 ksi | 12% | 50% | C40 min | |
| H1100 | 150 ksi | 135 ksi | 14% | 50% | C34 min | |
| H1150 | 135 ksi | 90 ksi | 14% | 50% | C30 min |
13-8 ph Heat Treatment:
| Condition | Temperature |
| H950 | 950°F ± 10°F (510°C ± 6°C) |
| H1000 | 1000°F ± 10°F (538°C ± 6°C) |
| H1025 | 1025°F ± 10°F (552°C ± 6°C) |
| H1050 | 1050°F ± 10°F (566°C ± 6°C) |
| H1100 | 1100°F ± 10°F (593°C ± 6°C) |
| H1150 | 1150°F ± 10°F (621°C ± 6°C) |
| Grade | Uns.No | Conformity to international specification | known near equivalent | Product Characteristics | Applications | Max Service Temperature |
| MDN 174 | S 17400 | ASTM A 564-TYPE 630 | Alloy 17-4 PH | A precipitation hardening steel offering good corrosion resistance with high strength and hardness Used in application demanding high corrosion resistance upto 300° C | Nuclear power plants, nozzles for nylon fiber compressor parts | 315° C |
| MDN 904 | N 08094 | ASTM B 625,B 649 | AVESTA 904L | Used under severe corrissive conditions | Distillation columns, reaction vessels, pipes and tanks | — |
| MDN 15-5PH | S 15500 | ASTM A 567 | Alloy 15-5 PH | High strength,good corrosion resistance,good mechanical properties properties up to 600° C (316° C),good toughness | Aerospace, chemical, petro chemical, food processing, paper and general metal working industries. | 350° C |
| MDN 11-10PH | — | — | Alloy 11-10 PH | High Strength,Toughness and Stress Corrosion Cracking resistance | Structural application in Aerospace industry | 400° C |
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FAQs
What are the key properties of SS 11-10PH?
SS 11-10PH is a precipitation-hardening martensitic stainless steel prized for its high strength-to-weight ratio. It offers a good balance of strength, moderate corrosion resistance, and toughness. This makes it suitable for demanding applications, particularly in aerospace, where components require high strength and fatigue resistance.
What is a 13-8 stainless steel equivalent to?
13-8 stainless steel doesn’t have a perfect equivalent, but similar materials include AISI 632, AMS 5629, and AMS 5864. A-286 is also sometimes considered, though it has different properties.
What is the difference between 15-5 ph vs 17-4 ph stainless steel?
Both 15-5 PH and 17-4 PH are precipitation-hardening martensitic stainless steels, meaning they gain strength through heat treatment. 17-4 PH is more common and generally offers better corrosion resistance. 15-5 PH, while slightly less corrosion resistant, typically exhibits superior toughness, particularly in the transverse direction (across the grain). Essentially, 17-4 PH is a good all-around choice, while 15-5 PH is often preferred when toughness is a critical factor, especially in demanding applications.
What is 15-5PH material?
15-5PH is a martensitic, precipitation-hardening stainless steel composed of roughly 15% chromium, 5% nickel, and copper. While sharing similar properties with its predecessor 17-4PH, 15-5PH is favored for its superior toughness, especially across the grain, though it may have slightly reduced corrosion resistance.
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