Special-Alloy Precision Components Manufacturer
Built on our own casting and machining plants, with stainless-steel structural welding in-house — investment casting up to 500 kg, sand casting up to 3 t (structures 5 t+), 20+ CNC machines at ±0.01 mm, ISO 9001:2015 certified.
Get a QuoteView Technical Capability
① Part name/type (pump body, valve body, impeller, custom structural part) + material grade & standard (e.g. CF8M / ASTM A351, 2205 / ASTM A890)
② Quantity + required lead time
③ Drawings (PDF / DWG / STEP) can be emailed directly to info@jsshengpu.com; without drawings, call +86 189-2168-2372 or scan our WeChat QR below
Fully Integrated, In-House Process
Casting → Heat Treatment → Machining → Inspection → Surface Treatment, all under one roof with 20+ CNC machines, investment casting to 500 kg and sand casting to 3 t+.
Complete Material Coverage
304/316/904L/Alloy 20/2520/2635, duplex stainless steel, nickel-based alloys, titanium alloys and heat-resistant steels.
Zero Compromise on Quality
Full chemical, mechanical, UT and MT testing plus dimensional inspection. Every batch ships with a complete inspection report.
Cost-Effective by Design
Own production capacity without unnecessary headcount; AI-driven digital management for maximum efficiency.
Service Process — 11 Standardised Steps, Transparent & Traceable
From inquiry to shipment, every step is clear and controllable.
Inquiry
Technical Coordination
Drawing Confirmation
Quotation & Contract
Process Design
Moulds & Tooling
Raw Casting
Heat Treatment
Finish Machining
Surface Treatment
QC & Delivery
View the full service process →
Products & Services
Six core component categories for pump, valve and fluid equipment. Investment casting to 500 kg, sand casting to 3 t, structures to 5 t+. Single pieces and small batches welcome.
Pump Flow Components
Pump bodies & casings, impellers & guide vanes, brackets & flanges — full range for centrifugal, magnetic and FGD pumps.
Valve Precision Castings
Ball, butterfly, globe and check valve bodies; valve cores & discs; bracket & flange assemblies.
Corrosion-Resistant Alloy Parts
2205/2507 duplex stainless steel, 904L super-austenitic stainless, Hastelloy, Inconel, Monel and titanium.
Non-Standard Precision Structures
Agitator blades, vacuum housings, bearing housings — build-to-print with small-batch prototyping.
Industry Custom Solutions
Petrochemical & offshore, FGD/environmental, pharmaceutical & food, marine & new energy, complete fluid-equipment packages.
Machining & Testing Services
Investment casting, CNC finish machining, polishing & heat treatment, PT/MT/UT non-destructive testing, physical & chemical analysis.
Precision Equipment — 20+ CNC Machines + 7 Testing Stations
| Equipment | Model | Brand | Accuracy | Qty |
|---|---|---|---|---|
| Horizontal CNC Lathe | CK6163 | Yunji | ±0.02 mm | 2 |
| Horizontal CNC Lathe | CK6150 | Yunji | ±0.02 mm | 8 |
| Slant-Bed High-Precision CNC | CK36-50 | DB | ±0.01 mm | 1 |
| Slant-Bed High-Precision CNC | C500K | DB | ±0.01 mm | 1 |
| 4-Axis Machining Center | 1160/855 | Guosheng | ±0.02 mm | 2 |
| 3-Axis Machining Center | 855 | Guosheng | ±0.02 mm | 4 |
| Testing Equipment | Item | Brand |
|---|---|---|
| Direct-Reading Spectrometer | Chemical composition | SPECTRO (Germany) |
| Tensile & Impact Tester | Mechanical properties | Beijing TIME |
| Ultrasonic Flaw Detector | UT | Nantong |
| Magnetic Particle Flaw Detector | MT | Nantong |
| Hardness Tester | Hardness | Nantong |
| Roughness Tester | Surface | Mitutoyo (Japan) |
| High-Precision Gauges | Dimensions | Mitutoyo (Japan) |
20+ CNC machines in total, accuracy ±0.01–±0.02 mm, full chemical + mechanical + UT/MT testing.
Special-Alloy Material System
Heat-by-heat spectrometric analysis at the furnace with a German SPECTRO spectrometer, covering 12 international standards with full material traceability.
| Category | Grades |
|---|---|
| Stainless Steel | 304 / 316L / 304L, 904L / 2205, Alloy 20 |
| Duplex Stainless Steel | CD4MCuN / CE8MN, CD3MN / Super Duplex |
| Nickel-Based Alloys | Inconel 600/625/718, Hastelloy C276/C22 |
| Titanium Alloys | Gr.2 / Gr.5 / Gr.7, Ti-6Al-4V ELI |
| Heat-Resistant Steels | ZG1Cr13Ni, HK-40, HP Series, HN Series |
Standards covered: GB · ASTM/ASME · DIN · EN · JIS · GOST · ISO
Industries & Technical Insights
Industries Served
- Petrochemical Equipment
- Aerospace
- Energy Equipment
- Fluid Equipment
- Fine Chemical
- Coal Chemical
- Salt Chemical
- Metallurgy
Welding Capability
- GMAW (MIG/MAG)
- GTAW (TIG)
- Laser Welding
- Vacuum Brazing
Material Selection
Duplex stainless steel vs. 316L: how to choose for pump and valve castings?
Application-driven comparison of suitability, cost and whole-life value.
Casting Process
Avoiding gas porosity and shrinkage in pump body castings.
Common defect causes and Sumpro's prevention and quality-control system.
Procurement Guide
Selecting a special-alloy supplier: 5 key dimensions.
Material authenticity, testing capability and process integrity for a scientific evaluation.
Looking for the Right Solution?
Send drawings to 240218099@qq.com — quotation within 24 hours.
Urgent orders: call +86 189-2168-2372
Certifications
Full management-system certification — bilingual certificates available for customer review.
| Certificate | Scope |
|---|---|
| ISO 9001:2015 | Quality Management System |
| ISO 14001:2015 | Environmental Management System |
| ISO 45001:2018 | Occupational Health & Safety |