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17-4PH Hot Rolled Precipitation-Hardening Stainless Steel Seamless Pipe Tube
Product Details
| Model Number | 17-4PH / 630 | Shape | Round |
|---|---|---|---|
| Technique | Hot Rolled | Surface Treatment | Pickling |
| Length | 6m | Other Shapes | Square, Rectangle |
| Outer Diameter | 6-630mm | Material Standard | ASTM A564, AMS 5643, ASTM A511 |
| UNS Designation | S17400 | Density | 7.80 G/cm³ |
| Melting Point | 1400-1440°C | Thermal Conductivity | 24.9 W/m*K |
| OD Range | 3.18 Mm - 203 Mm | Wall Thickness | 0.51 Mm - 38.1 Mm |
| Tensile Strength | 1310 MPa (H900) | ||
| Highlight | 17-4PH Stainless Steel Pipe,Hot Rolled Stainless Steel Tube,Precipitation-Hardening Seamless Pipe |
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Product Description
17-4PH / SUS630 / Alloy 630 Stainless Steel Pipes & Tubes
Product Overview
Hot rolled SUS630 / 17-4PH / Alloy 630 stainless steel seamless pipes and BA AP SS hollow tubes designed for demanding industrial applications requiring exceptional strength and corrosion resistance.
Product Specifications
| Parameter | Details |
|---|---|
| Product Name | Stainless Steel Seamless Pipe |
| Grades Available | 304, 304L, 309S, 310S, 314, 316L, 316Ti, 321, 329, 347H, 410, 2205, 2507, 904L, 254SMO, 17-4PH and equivalent grades in GB, JIS, EN, DIN standards |
| Standards | ASTM A213M, A249M, A269, A312M; DIN 17456, 17458, 17459; JIS G3446, G3448, G3459, G3463; GB13296, GB14975, GB14976 |
| Size Range | ND5 - DN400 |
| Length | 6m standard or custom lengths as requested |
| Applications | Fluid and gas transport, structural components, boilers, heat exchangers, super heaters |
630 Stainless Steel Seamless Tubing
UNS S17400 / 17-4PH Precipitation-Hardening Stainless Steel
Product Description
630 seamless tubing is a martensitic precipitation-hardening stainless steel offering exceptional strength, corrosion resistance, and machinability. Supplied in solution-annealed Condition A, it achieves high mechanical properties via low-temperature aging heat treatment. Ideal for high-stress, corrosive, and moderate-temperature applications where standard austenitic steels lack sufficient strength.
Key Specifications & Standards
| Category | Details |
|---|---|
| Material Standard | ASTM A564, AMS 5643, ASTM A511 |
| UNS Designation | S17400 |
| EN/DIN Equivalent | 1.4542 (X5CrNiCuNb16-4) |
| Common Tempers | Condition A (Solution Annealed), Aged: H900, H1025, H1100, H1150, H1150M |
Chemical Composition (% Weight, Typical)
| Element | Content |
|---|---|
| Chromium (Cr) | 15.0-17.5 |
| Nickel (Ni) | 3.0-5.0 |
| Copper (Cu) | 3.0-5.0 |
| Niobium+Tantalum (Nb+Ta) | 0.15-0.45 |
| Carbon (C) max | 0.07 |
| Manganese (Mn) max | 1.00 |
| Silicon (Si) max | 1.00 |
| Iron (Fe) | Balance |
Mechanical Properties (Aged Conditions)
| Aging Condition | Tensile Strength (min) | Yield Strength (min) | Elongation % (min) | Hardness (HRC) |
|---|---|---|---|---|
| H900 | 190 ksi (1310 MPa) | 170 ksi (1170 MPa) | 10 | 40-48 |
| H1150 | 135 ksi (930 MPa) | 105 ksi (725 MPa) | 12 | 30-38 |
| H1150M | 110 ksi (760 MPa) | 85 ksi (585 MPa) | 15 | 28-36 |
Physical Properties
- Density: 0.282 lb/in³ (7.80 g/cm³)
- Melting Point: 2560-2625°F (1400-1440°C)
- Magnetic Response: Yes (martensitic structure)
- Thermal Conductivity: 14.4 BTU*ft/hr*ft²*°F (24.9 W/m*K)
- Corrosion Resistance: Comparable to 304 stainless; resistant to acids, freshwater, steam, and petroleum
Tubing Specifications
| Parameter | Details |
|---|---|
| Type | Seamless (SMLS), Cold-Drawn or Hot-Finished |
| OD Range | 0.125" - 8" (3.18 mm - 203 mm) |
| Wall Thickness | 0.020" - 1.5" (0.51 mm - 38.1 mm) |
| Length | Standard: 12-24 ft (3.6-7.3 m); Custom cuts available |
| Tolerances | ASTM A511, ASTM A564, or custom precision (±0.001" on OD) |
| Surface Finish | Annealed/pickled, polished (#4, #8, mirror), sandblasted, or as-requested |
Packaging
- Standard: Bundled with plastic/corrugated wrapping, wood-crated or palletized
- Protection: PVC end caps, VCI (vapor corrosion inhibitor) paper for long-term storage
- Labeling: Heat number, size, temper, quantity, and compliance marks (RoHS/REACH)
Value-Added Services
- Cutting: Precision saw, abrasive waterjet, or laser cutting
- Heat Treatment: Custom aging (H900 to H1150M) for target strength/toughness
- Machining: CNC turning, milling, threading, grooving
- Surface Treatment: Passivation, electropolishing, bead blasting
- Testing: Eddy current (ECT), hydrostatic, ultrasonic (UT), PMI (positive material identification)
- Welding: TIG/GTAW with ER630 filler wire
Applications
630 seamless tubing is critical in high-performance sectors:
- Aerospace: Landing gear, actuator cylinders, hydraulic lines
- Oil & Gas: Downhole tools, valve stems, chemical injection tubing
- Medical: Surgical instruments, implantable device components (biocompatible grades available)
- Power Generation: Turbine blades, heat exchanger tubes
- Industrial: Hydraulic/pneumatic cylinders, bearings, nuclear waste containers
- Marine: Propeller shafts, subsea fittings
Compliance & Certification
- Mill Test Reports (MTRs) per EN 10204 3.1/3.2
- Compliance: NACE MR0175, ASTM A262, AMS 5643
- Certifications: ISO 9001, AS9100, PED 2014/68/EU (upon request)
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