JIANGSU MITTEL STEEL INDUSTRIAL LIMITED
| Payment Terms | L/C, T/T, Western Union |
| Supply Ability | 3 Ton per week |
| Delivery Time | 5 - 12 days based on the quantity |
| Packaging Details | standard packing for export |
| Products | Stainless Steel Seamless Pipe |
| Grade | 17-4PH / 630 |
| Diameter | DN10 - DN400 |
| Length | 6m or custom cutting any length as request |
| Standard | ASTM EN |
| Service | Cutting |
| Loading Port | Shanghai Port |
| Thickness | 4.0 - 50.0mm |
| Brand Name | DELTA |
| Model Number | 17-4PH / 630 |
| Certification | ISO |
| Place of Origin | China |
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Product Specification
| Payment Terms | L/C, T/T, Western Union | Supply Ability | 3 Ton per week |
| Delivery Time | 5 - 12 days based on the quantity | Packaging Details | standard packing for export |
| Products | Stainless Steel Seamless Pipe | Grade | 17-4PH / 630 |
| Diameter | DN10 - DN400 | Length | 6m or custom cutting any length as request |
| Standard | ASTM EN | Service | Cutting |
| Loading Port | Shanghai Port | Thickness | 4.0 - 50.0mm |
| Brand Name | DELTA | Model Number | 17-4PH / 630 |
| Certification | ISO | Place of Origin | China |
| High Light | Alloy 630 seamless ss pipe ，SUS630 seamless ss pipe ，Hot Rolled seamless ss pipe | ||
Hot Rolled SUS630 / 17-4PH / Alloy 630 Stainless Steel Seamless Pipe BA AP SS Hollow Tube
Products Specification
| Products Name | Stainless Steel Seamless Pipe |
Grade: | 304 304L 309S 310S 314 316L 316Ti 321 329 347H 410 2205 2507 904L 254SMO 17-4PH and equal grade in GB JIS EN DIN Standard |
| Standards: | ASTM A213M-94b ASTM A249M-94a ASTM A269-94a ASTM A312M-94b,ect. |
| DIN 17456-85 DIN 17458-85 DIN 17459-92.ect | |
| JIS G3446-1994 JIS G3448-1997 JIS G3459-1997 JIS G3463-1994,ect. | |
| GB13296-1991 GB14975-2002 GB14976-2002,ect. | |
| Size: | ND5 - DN400 |
| Length: | 6m length or cutting any length as request |
| Applications: | fluid and gas transport, structure , boiler, heat exchanger, super heater |
630 Stainless Steel Seamless Tubing – Product Information
*(UNS S17400 / 17-4PH Precipitation-Hardening Stainless Steel)*
630 Seamless Tubing is a martensitic precipitation-hardening stainless steel offering exceptional strength, corrosion resistance, and machinability. The "630" designation (per AMS/UNS) is synonymous with 17-4PH. Supplied in solution-annealed Condition A, it achieves high mechanical properties via low-temperature aging heat treatment (e.g., H900, H1150). Ideal for high-stress, corrosive, and moderate-temperature applications where standard austenitic steels (304/316) lack sufficient strength.
| Category | Details |
|---|---|
| Material Standard | ASTM A564 (Age-Hardening Stainless Steel), AMS 5643, ASTM A511 (Seamless Mechanical Tubing) |
| UNS Designation | S17400 |
| EN/DIN Equivalent | 1.4542 (X5CrNiCuNb16-4) |
| Common Tempers | Condition A (Solution Annealed), Aged: H900, H1025, H1100, H1150, H1150M |
| Element | Cr | Ni | Cu | Nb+Ta | C (max) | Mn (max) | Si (max) | Fe |
|---|---|---|---|---|---|---|---|---|
| Content | 15.0-17.5 | 3.0-5.0 | 3.0-5.0 | 0.15-0.45 | 0.07 | 1.00 | 1.00 | Balance |
| 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 |
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.
| 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 (e.g., ±0.001" on OD) |
| Surface Finish | Annealed/pickled, polished (#4, #8, mirror), sandblasted, or as-requested |
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).
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.
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.
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).
Company Details
Business Type:
Manufacturer,Distributor/Wholesaler,Exporter
Total Annual:
>1000000
Employee Number:
>100
Ecer Certification：
Verified Supplier
Our company is located in Wuxi City, China, we are a stainless steel plate, seamless steel pipe, round steel, steel belt, decorative pipe and other products distribution wholesale private enterprise. Our company operates stainless steel plate, seamless steel pipe, round steel, steel belt, decorative... Our company is located in Wuxi City, China, we are a stainless steel plate, seamless steel pipe, round steel, steel belt, decorative pipe and other products distribution wholesale private enterprise. Our company operates stainless steel plate, seamless steel pipe, round steel, steel belt, decorative...
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