17-4PH Stainless Steel | SUS630 Stainless Steel
We are the Leading Supplier of Stainless Steel 17-4PH.
Stainless Steel 17-4PH (SUS630 Stainless Steel) is a precipitation hardening martensitic stainless steel, which combines high strength and hardness (after heat treatment) with excellent corrosion resistance, and is suitable for easy fabrication.
We supply and export to Singapore , Indonesia , Brunei and other ASEAN Countries.
Our specialty is to provide wide range of stainless steel with no minimum order (MOQ).
E Steel supply Stainless Steel 17-4PH Rounds Bar , Stainless Steel 17-4PH Rods , 17-4 PH Stainless Steel Plates.
We supply 17-4PH (SUS 630) in 5 conditions : 17-4PH Annealed , 17-4PH H1025 , 17-4PH H1075 , 17-4PH H1150 , 17-4PH H900
or JIS Standard SUS630 Annealed , SUS630 H1025 , SUS630 H1075 , SUS630 H1150 , SUS630 H900
* SUS630 is the JIS Standard (Japan Origin) of 17-4PH.
E Steel supplying 17-4PH H900 Stainless Steel to Petronas Labuan Projects , please refer : https://www.ecarbonsteel.com/index.php?ws=latestnews&nid=97083
Stainless Steel 17-4PH is a precipitation hardening martensitic stainless steel, which combines high strength and hardness (after heat treatment) with excellent corrosion resistance, and is suitable for easy fabrication.
Mechanical Properties of 17.4PH / SUS 630 (longitudinal)
17.4PH stainless steel has excellent corrosion resistance. Corrosion tests and service experience have shown that in all aged conditions it is superior to standard hardenable stainless grades such as SUS 420, SUS 431 and SUS 410. Its corrosion resistance is comparable to grade SUS 304 Stainless.
Welding
Arc and resistance welding processes used on standard grades of stainless steel are applicable to 17.4 PH stainless steel. The low hardness enables sections, up to 100mm, to be welded without requiring pre heating.
Fabrication
17/4PH Condition is suitable for limited cold forming, H1100, H1150 and overaged conditions are more suitable when severe cold forming is required.
Machining
17/4 PH Condition has machining characteristics similar to stainless steel grade SS302, SS304 and SS410. The high hardness and strength in Condition H900 is the most difficult to machine and the material should be machined at 60% of the rate which is used for Condition A.
Nitriding
To increase the resistance to surface wear, with a slight decrease in corrosion resistance, 17-4PH / SUS630 stainless steel can be nitrided. An approximate hardness of 64/67HRc can be achieved, with a surface hardness depth of up to 0.15mm when nitrided at 45°C, while still maintaining a high core strength.
Stainless Steel 17-4PH (SUS630 Stainless Steel) is a precipitation hardening martensitic stainless steel, which combines high strength and hardness (after heat treatment) with excellent corrosion resistance, and is suitable for easy fabrication.
We supply and export to Singapore , Indonesia , Brunei and other ASEAN Countries.
Our specialty is to provide wide range of stainless steel with no minimum order (MOQ).
E Steel supply Stainless Steel 17-4PH Rounds Bar , Stainless Steel 17-4PH Rods , 17-4 PH Stainless Steel Plates.
We supply 17-4PH (SUS 630) in 5 conditions : 17-4PH Annealed , 17-4PH H1025 , 17-4PH H1075 , 17-4PH H1150 , 17-4PH H900
or JIS Standard SUS630 Annealed , SUS630 H1025 , SUS630 H1075 , SUS630 H1150 , SUS630 H900
* SUS630 is the JIS Standard (Japan Origin) of 17-4PH.
E Steel supplying 17-4PH H900 Stainless Steel to Petronas Labuan Projects , please refer : https://www.ecarbonsteel.com/index.php?ws=latestnews&nid=97083
17-4PH Stainless Steel Suppliers - SUS630 , AISI 630 , UNS S17400 , 1.4548 Precipitation Stainless Steel
Stainless Steel 17-4PH is a precipitation hardening martensitic stainless steel, which combines high strength and hardness (after heat treatment) with excellent corrosion resistance, and is suitable for easy fabrication.Solution Treatments for 17-4PH (SUS630)
As supplied 17-4 PH is usually in the solution treated condition (Condition A). It can be heat treated at different temperatures to offer a wide range of properties.| Condition | Hardening | Hardening | Type of Cooling | Hardness | |
| Temperature | Time | Brinell | Rockwell C | ||
| 17-4PH Annealed | 1038°C | 1/2 | Oil/Air (to below 32°C) | 363 max. | 39 max. |
| 17-4PH H900 | 480°C | 1 | Air | 420 | 44 |
| 17-4PH H925 | 594°C | 4 | Air | 409 | 42 |
| 17-4PH H1025 | 55°C | 4 | Air | 352 | 38 |
| 17-4PH H1075 | 85°C | 4 | Air | 341 | 36 |
| 17-4PH H1100 | 595°C | 4 | Air | 332 | 35 |
| 17-4PH H1150 | 621°C | 4 | Air | 311 | 33 |
| 17-4PH (H1150+H1150, Double Aged H1150) |
760°C
760°C |
4 followed by 4 |
Air
Air |
302 |
33 |
| 17-4PH (H1150-M) |
760°C
620°C |
2 followed by 4 |
Air
Air |
277 |
27 |
Mechanical Properties of 17.4PH / SUS 630 (longitudinal)
| Condition: | |||||||||
| 17-4PH Annealed | 17-4PH (H900) | 17-4PH (H925) | 17-4PH (H1025) | 17-4PH (H1075) | 17-4PH (H1100) | 17-4PH (H1150) |
17-4PH (H1150+ H1150, Double Aged) |
17-4PH (H1150M) | |
|
Tensile Strength N/mm2 |
1034 | 1380 | 1310 | 1170 | 1140 | 1035 | 1000 | 965 | 860 |
|
0.2% YS N/mm2 |
760 | 1275 | 1200 | 1140 | 1035 | 930 | 860 | 760 | 585 |
|
Reduction of Area % |
30-60 | 50 | 54 | 56 | 58 | 58 | 60 | 60 | 68 |
|
Elongation % |
6-15 | 14 | 14 | 15 | 16 | 17 | 19 | 20 | 22 |
|
Charpy Impact J |
– | 20 | 34 | 47 | 54 | 61 | 68 | 108 | 135 |
Corrosion Resistance of 17-4PH Stainless Steel
17.4PH stainless steel has excellent corrosion resistance. Corrosion tests and service experience have shown that in all aged conditions it is superior to standard hardenable stainless grades such as SUS 420, SUS 431 and SUS 410. Its corrosion resistance is comparable to grade SUS 304 Stainless.
Welding
Arc and resistance welding processes used on standard grades of stainless steel are applicable to 17.4 PH stainless steel. The low hardness enables sections, up to 100mm, to be welded without requiring pre heating.
Fabrication
17/4PH Condition is suitable for limited cold forming, H1100, H1150 and overaged conditions are more suitable when severe cold forming is required.
Machining
17/4 PH Condition has machining characteristics similar to stainless steel grade SS302, SS304 and SS410. The high hardness and strength in Condition H900 is the most difficult to machine and the material should be machined at 60% of the rate which is used for Condition A.
Nitriding
To increase the resistance to surface wear, with a slight decrease in corrosion resistance, 17-4PH / SUS630 stainless steel can be nitrided. An approximate hardness of 64/67HRc can be achieved, with a surface hardness depth of up to 0.15mm when nitrided at 45°C, while still maintaining a high core strength.
Applications for 630 Stainless Steel (17-4PH)
Grade 17-4 stainless steel is used in the following applications:- Nuclear reactor
- Aircraft and gas turbines
- Oil field
- Chemical process components
- Paper mill
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