Nascent Pipe & Tubes offers premium-grade 17-4 PH Tubes, crafted from martensitic precipitation hardening stainless steel, designated as UNS S17400 and standardized under ASTM A564 Type 630. Known for its exceptional mechanical strength, corrosion resistance, and outstanding toughness across a wide range of temperatures, these tubes are ideal for high-stress environments such as aerospace, marine, chemical, and petrochemical industries.
Our 17-4 PH stainless steel tubes are widely preferred for their unique ability to be hardened by a single low-temperature heat treatment. This metallurgical advantage results in a combination of high strength, good corrosion resistance, and favorable fabrication characteristics, making them a reliable choice for pressure vessels, nuclear reactors, and mechanical components. The addition of copper and niobium in the alloy improves its resistance to stress corrosion cracking and pitting, ensuring durability and reliability in chloride-rich environments.
17‐4 PH Tubes Manufacturers, 17‐4 PH Tubes Suppliers, 17‐4 PH Tubes Stockists, 17‐4 PH Tubes Exporters
17‐4 PH Tubes Manufacturers in India, 17‐4 PH Tubes Suppliers in India, 17‐4 PH Tubes Stockists in India, 17‐4 PH Tubes Exporters in India
At Nascent Pipe & Tubes, we ensure the manufacturing of UNS S17400 tubes in accordance with stringent quality control standards. These tubes exhibit excellent dimensional precision, surface finish, and uniformity throughout. With hardness levels that can reach up to HRC 44 depending on the heat treatment condition (Condition A to H1150), our tubing solutions deliver a versatile solution for applications requiring both hardness and moderate corrosion resistance.
17‐4 PH Tubes Manufacturers in Mumbai, 17‐4 PH Tubes Suppliers in Mumbai, 17‐4 PH Tubes Stockists in Mumbai, 17‐4 PH Tubes Exporters in Mumbai
The universal standard name for 17-4 PH is “Stainless Steel Grade 630,” and it’s classified under various international specifications, including ASTM A564, AMS 5604, ASTM A693, and ASTM A705. Whether it’s for structural use or demanding industrial applications, our 17-4 PH Tubes are engineered to perform under pressure while ensuring long service life and minimal maintenance.
Specification of 17‐4 PH Tubes
Specification :ASTM B668 / ASME SB668; EN 10216-5; SEW 400 (Feb 1991); SS 14 25 84; NFA 49-217
17‐4 PH Tube Size: 1/8” NB to 24” NB, 1/4” OD to 24” OD sizes.
17‐4 PH Tube Size :1/2" OD to 8" OD.
Thickness Range : 0.3mm – 50 mm, SCH 5, SCH10, SCH 40, SCH 80, SCH 80S, SCH 160, SCH XXS, SCH XS
Type :Seamless / ERW / Welded / Fabricated Pipes
Form : Round, Square, Rectangular, Oval, Hydraulic Etc
Length :Single Random, Double Random & Required Length
End :Plain End, Beveled End, Treaded
End Protection :Plastic Caps
Outside Finish :2B, No.4, No.1, No.8 Mirror Finish for Stainless Steel Pipes, Finish as per customer Requirements
Delivery Condition :Annealed and Pickled, Polished, Bright Annealed, Cold Drawn
Inspection, Test Reports : Mill Test Certificates, EN 10204 3.1, Chemical Reports, Mechanical Reports, PMI Test Reports, Visual Inspection Reports, Third Party Inspection Reports, NABL Approved Lab Reports, Destructive Test Report, Non Destructive Test Reports
Packing : Packed in Wooden Boxes, Plastic Bags, Steel Strips Bundled, or as per Customers Requests
Specials :Sizes and Specifications other than above can be manufactured on request
Chemical Composition of 17‐4 PH Tubes
| Grade | C % | Si % | Mn % | P % | S % | Cr % | Mo % | Ni % | N % | Cu % |
|---|---|---|---|---|---|---|---|---|---|---|
| 17‐4 PH | ≤ 0.02 | 0.70 | 2.00 | 0.03 | 0.01 | 26.0-28.0 | 3.00-4.00 | 30.0-32.0 | ≤ 0.11 | 0.70-1.50 |
Mechanical Properties Of 17‐4 PH Tubes
| Tensile strength Rm N/mm² | 0.2% Yield strength Rp ≥ N/mm² | Elongation A5 ≥ % | Hardness HB 30 ≤ HB | Modulus of elasticity kN/mm² |
|---|---|---|---|---|
| 500-750 | 220 | 35/30 | 230 | 195 |
17‐4 PH Tubes Equivalent Grades
| STANDARD | WERKSTOFF NR. | UNS |
|---|---|---|
| SS 17‐4 PH | 1.4542 | S17400 |
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