AISI 630 (17-4PH)
2014-09-20 20:21:53 Origin： Remark：0 Click：
LonghaiSteel is manufacturer and supplier of AISI 630 & AMS 6543 Precipitation hardening stainless steel round bar and flat bar. SS630 is a corrosion resistant grade which is soft and ductile in the solution annealed condition. Medium to high strength, good toughness and strength is obtained by the appropriate ageing treatment. As a martensitic precipitation hardening stainless it is characterised by high tensile strength and high yield strength obtained by solution annealing, followed by a single or double low temperature age hardening treatment. SS 630 / 17-4PH has corrosive properties comparable to 304 austenitic stainless steel in many environments.
ASTM-A564 Grade 630 UNS S17400 JIS SUS630
AMS 5643 5604 EN10088-3
|Form of Supply||
ASTM 630 / 17-4PH flat bar and round bar is commonly stocked in Condition A and can be cut to your specific requirements. Stocks of 17-4ph H1050+H1150 are available in round bar. Precision ground bar can be produced and supplied ground to your required tolerances.
Commonly used in industries such as offshore, marine, food, paper mills, oil field and aerospace. AISI 630 is used for components such as fasteners, couplings, screws, bushings, studs, fittings, valve stems, roller, wear rings.
Heat slowly and uniformly to 1180-1200ºC. Do not forge below 1010ºC. Hold at temperature for one hour prior to forging the component. Cool in air to room temperature. Forged components require solution annealing before any further heat treatment.
AISI 630 stainless has very good corrosion resistance properties. Corrosion tests in service have shown good results in all aged conditions. With better corrosion resistance to standard hardenable stainless grades such as 431, 420 and 410. 17-4PH has corrosion resistance comparable to 304 stainless specification.
Similar in machining characteristics to 304 and 410 stainless steel specifications. Condition H900 has high hardness and strength which is the most difficult to machine and the machining of this is recommended to be carried out at 60% of the rate which is used for Condition A.
For increase resistance to surface wear, with a slight reduction in corrosion resistance, AISI 630 can be nitrided. When nitrided at 540ºC an approximate hardness of 64-67 HRc is achievable, with a surface hardness depth of up to 0.15mm. The steel maintains a high core strength.
|Solution Treatment Typical Properties||
SS630 is commonly supplied in the solution treated condition (Condition A). Heat treated at different temperatures will offer a wide range of properties. (We also hold stock in H1150+H1150).
|Typical Mechanical Properties*||
Advantage and Product profile
Round bar / wire rod (Diameter): 0.50mm to 550mm
Excellent service for all kinds of industries.
- 33ASTM A565 Gr.616HT
- 26EN 57
- 25ASTM A890 Grade 4A
- 24AISI 306
- 22ASTM A638 Gr.660
- 19SAE 51420
- 18ASTM A538 / AMS 6514
- 15GTD 450