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17-4h(630stainless steel )steel coil and steel bar

17-4h(630stainless steel )steel coil and steel bar

17-4h(630stainless steel )steel coil and steel bar

Product Details:

Place of Origin: China
Brand Name: Torich
Certification: ISO 9001
Model Number: 17-4h

Payment & Shipping Terms:

Minimum Order Quantity: 0.3tons
Price: negotiable
Packaging Details: In standard packages
Delivery Time: 5-8 weeks days
Payment Terms: L/C, T/T
Supply Ability: 5000tons per year
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Detailed Product Description
Technique: Cold Rolled Surface Treatment: BA,Mirror Etc.
Application: Other Width: 600mm-1250mm
Type: Steel Plate Standard: ASTM
Length: As Your Requirement Special Use: High-strength Steel Plate
Thickness: 0.3-120mm Surface: Bright

17-4PH stainless steel (630 stainless steel)


17-4PH stainless steel is a martensitic precipitation hardening stainless steel, equivalent to the Chinese brand: 0Cr17Ni4Cu4Nb. 17-4PH precipitation hardening steel with copper added. 17-4PH is used to manufacture shafts and steam turbine parts.
Chinese name 17-4PH stainless steel standard AISI, ASTM type number 17-4PH (SUS630) UNS number S17400
●17-4PH characteristics and applications:
●17-4PH chemical composition①:

C Mn Si Cr Ni② P S Cu Niobium+tantalum Nb+Ta
≤0.07 ≤1.00 ≤1.00 15.5~17.5 3.0~5.0 ≤0.04 ≤0.03 3.0~5.0 0.15~0.45


●17-4PH mechanical properties:
Tensile strength σb (MPa): aging at 480°C, ≥1310; aging at 550°C, ≥1060; aging at 580°C, ≥1000; aging at 620°C, ≥930
Conditional yield strength σ0.2 (MPa): aging at 480°C, ≥1180; aging at 550°C, ≥1000; aging at 580°C, ≥865; aging at 620°C, ≥725
Elongation δ5 (%): aging at 480°C, ≥10; aging at 550°C, ≥12; aging at 580°C, ≥13; aging at 620°C, ≥16
Reduction of area ψ (%): aging at 480℃, ≥40; aging at 550℃, ≥45; aging at 580℃, ≥45; aging at 620℃, ≥50
Hardness: solid solution, ≤363HB and ≤38HRC; aging at 480℃, ≥375HB and ≥40HRC; aging at 550℃, ≥331HB and ≥35HRC; aging at 580℃, ≥302HB and ≥31HRC; aging at 620℃, ≥277HB and ≥28HRC
●17-4PH heat treatment specification and metallographic structure:
Heat treatment specifications: 1) rapid cooling at 1020~1060℃; 2) aging at 480℃, after solution treatment, air cooling at 470~490℃; 3) aging at 550℃, after solution treatment, air cooling at 540~560℃; 4) Aging at 580℃, after solution treatment, air cooling at 570~590℃; 5) Aging at 620℃, after solution treatment, air cooling at 610~630℃.
Metallographic structure: The structure is characterized by precipitation hardening.
●17-4PH delivery status: generally delivered in the heat treatment state, the type of heat treatment is indicated in the contract; if it is not specified, it will be delivered in the non-heat treatment state.
Note: ①A single value is the highest value unless otherwise specified; ②When used in certain pipe making processes, the nickel content of some types of austenitic stainless steel must be slightly higher than the value shown in the table; ③ Random; ④The highest TA content is 0.10%; ⑤The highest content is 0.75%; ⑥The highest content is 0.70%
17-4PH alloy is precipitation, hardening, martensitic stainless steel.
17-4PH alloy is a precipitation, hardening, martensitic stainless steel composed of copper and niobium/columb.
This grade has high strength, hardness (up to 300°C/572°F) and corrosion resistance.
After heat treatment, the mechanical properties of the product are more perfect, and can reach a compressive strength of up to 1100-1300 mpa (160-190 ksi).
This grade cannot be used at temperatures higher than 300°C (572°F) or very low temperatures. It has good corrosion resistance to the atmosphere and diluted acids or salts. Its corrosion resistance is the same as 304 and 430.
17-4PH application field:
· Offshore platforms, helicopter decks, other platforms
· food industry
· Pulp and Paper Industry
· Aerospace (turbine blades)
· machinery parts
· Nuclear Waste Barrel

17-4h(630stainless steel )steel coil and steel bar

Contact Details
Torich International Limited

Contact Person: Mr. Richard

Tel: 86-574-88086983

Fax: 86-574-88086983

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