AISI 631 17-7PH Stainless Steel Pipe

AISI 631 stainless steel seamless pipe has precipitation hardening characteristics, contains Cr15-17%, Ni6.5-8.5%, etc., has excellent strength and hardness, can be improved by heat treatment, has strong corrosion resistance, is suitable for high-load parts, and is widely used in chemical, marine, medical and other fields.
The heat treatment process of 17-7PH stainless steel pipe includes solution treatment and aging treatment. After solution treatment, the material has an austenitic structure with good plasticity, toughness and processability; after aging treatment, austenite is transformed into martensite, and the hardness is significantly improved to 38-40HRC. In addition, nitriding treatment can improve the material's wear resistance, anti-seizure ability and the service life of mechanical parts.

Specifications Of 17-7PH Stainless Steel pipe:

Grade	AISI 631, UNS S17700, W.Nr.1.4568, SUS631, 07Cr17Ni7Al
Surface	Bright, Pickling, Black, Polished
Diameter	6mm - 600mm

S1770 Stainless Steel pipe Equivalent:

DIN	JIS	GB	ASTM / AISI
1.4568	SUS 631	07Cr17Ni7Al	17-7PH, 631

SUS 631 Stainless SeamlessSteel pipe Chemical Composition:

Grade	C	Mn	Si	P	S	Cr	Ni	Al
631	0.09	1.0	1.0	0.04	0.03	16.0-18.0	6.5-7.75	0.75-1.5

17-7PH Steel pipe  Mechanical Properties:

Alloy	Tensile strength Rm N/mm2	Yield strengt RP0.2N/mm2	Elongatio A5%	Brinell hardnes HB
Solid melting 1000~1100℃ fast cooling	≤1030	≤380	≥20	≤229
Aging at 565℃	≥1140	≥960	≥5	≥363
Aging at 510℃	≥1230	≥1030	≥4	≥388

Why choose GNEE

GNEE production line is equipped with cold drawing machine, cold rolling machine, natural gas high temperature solution treatment furnace, closed pickling equipment, straightening machine, material testing machine, eddy current flaw detector, ultrasonic flaw detector, physical and chemical laboratory CS analyzer and other production and testing equipment.

 1.4301 Seamless Pipe And Tube Supplier

Stainless Steel Round SS EN 1.4301 Seamless Pipe Packaging

Q: Do you provide customized product services?
A: Of course, we can design and produce the products you need according to your specifications and drawings. For example: special size, special control, OEM, etc.
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A: Of course, we welcome you to visit our factory on site or visit our production line through online video to understand our strength and quality. We will arrange a professional team to serve you.