Precise stainless steel hardware with M4 threads, manufactured by CNC processing.
Cost Evaluation for Stainless Steel Material Selection (Abridged Version)
Core Principle
Abandon the comparison of a single raw material unit price; focus on Life Cycle Cost (LCC) for comprehensive calculation combining scenario requirements, processing, service life and maintenance. The optimal choice is the one that matches the scenario—eliminate over-specification waste and avoid hidden costs from under-specification failure.
I. Basic Cost Gradient (Same Spec, Low to High)
Ferritic (430/443) < Martensitic (410/420/440C) < 304 < 304L < 316 < 316L < High-temperature steel (309S/310S) < Duplex steel (2205) < 2507
Key: Higher nickel and molybdenum content leads to higher costs. 316 is 30%-50% more expensive than 304, and duplex steel is over 50% pricier than 316L.
II. Core Components of Life Cycle Cost
LCC = Raw Material Procurement Cost + Processing & Manufacturing Cost + Installation & Maintenance Cost + Scrap & Replacement Cost - Residual Value Recovery
Key points for each dimension:
- Procurement: For the same grade, cost varies by spec/surface—thin sheet/polished finish > thick sheet/hot-rolled finish; niche specs have custom premiums.
- Processing: Difficulty ranking (from low to high): Martensitic < Ferritic < Austenitic < Duplex steel. High-end grades incur higher tool and labor costs.
- Maintenance: Low-grade steels are prone to rust and require regular maintenance; well-matched high-grade steels need almost no maintenance.
- Replacement: Under-spec materials are prone to failure, with replacement and downtime costs several times the procurement cost.
- Residual value: Common grades (304/316) have a residual value of 30%-50%, while duplex/high-temperature steels have extremely low residual value.
III. Cost Evaluation Priorities by Scenario
- Short-term/Disposable scenarios (≤3 years, civil hardware/temporary tooling): Procurement cost > Processing cost. Choose 430/304 hot-rolled materials to control one-time costs.
- Medium-term regular scenarios (3-10 years, sanitary ware/regular industrial equipment): Procurement + Processing cost > Maintenance cost. Choose 304 for a balance of comprehensive cost and adaptability.
- Long-term/extreme scenarios (≥10 years, marine/chemical/high-temp & high-pressure): Replacement/downtime cost > All others. Must select 316L/2205/310S to control long-term hidden costs.
- Precision machining/wear-resistant scenarios (cutting tools/shafts): Processing cost > Procurement cost. Choose 410/440C martensitic steel to reduce tool and labor losses.
IV. Core Cost Optimization Strategies
- Eliminate over-specification: For non-chloride, non-high-temp and weak corrosion scenarios, replace 316 with 304 and 304 with 430; avoid blind selection of high-end grades.
- Avoid under-specification: Never use 304/430 in seawater/high-chloride, food & pharmaceutical, or high-pressure scenarios to prevent failure and scrap.
- Process substitution: Replace high-end grades with ordinary grades plus surface treatment (passivation/coating/polishing) to reduce costs by about 40%.
- Procurement optimization: Select common specs/grades to reduce custom premiums and increase the recoverable residual value.
We have introduced advanced equipment and technology from Japan and Germany (CNC 5-axis and 6-axis machines) to better serve our customers' needs.
Our maximum processing outer diameter is 60, and the minimum control tolerance is 0.001. We have Japanese CNC Tsugami, CNC Citizen, multi-station cold extrusion forming machines, 500T press machines, casting equipment, and various process equipment, which can effectively provide customers with the best technical solutions.
Our company has a total of 300 employees, including 20 technicians, 10 engineers, and 15 quality control personnel. We have over 300 pieces of equipment.
Our company implements 8S management and has passed ISO9001 and TS16949 automotive certifications.
Our customers include Siemens, bo-sch, Foxconn, Panasonic Motors, Husqvarna, Shimano, NVIDIA, DJI Drones, Siegenia, and Cater-pillar.
| OUR CAPACITY |
| Main product names: |
Stainless steel screws, carbon steel screws, pins, rivets, nuts, |
| eccentric nails, embedded parts, and other fasteners. |
| Business Type |
Factory / Maufacture |
| Service |
CNC Machining |
| Turning and Milling |
| CNC Turning |
| Cold heading |
| stamping |
| Assembly Service |
| Material |
1). Aluminum: AL 6061-T6, 6063, 7075-T etc |
| 2). Stainless steel:303,304,304L,316L,316F,630,410,420,430, etc |
| 3). Steel: 4140, Q235, Q345B,20#,45# 1215,12L14 ,1144,1006,1008,1010,1015,1018 ,10B21,1035,1065 etc. |
| 4)Alloy steel:5140,4135,4140,3435,5120,415 ,435,440 etc |
| 5). Titanium: TA1,TA2/GR2, TA4/GR5, TC4, TC18 etc |
| 6). Brass: C36000 (HPb62), C37700 (HPb59), C26800 (H68), C22000(H90),C27000,C51900,C11000,C3604,H62,H65 etc |
| 7). Copper, bronze, Magnesium alloy, Delrin, POM,Acrylic, PC, etc. |
| Finish |
Sandblasting, Anodize color, Blackenning, Zinc/Nickl Plating, Polish, |
| Power coating, Passivation PVD, Titanium Plating, Electrogalvanizing, |
| electroplating chromium, electrophoresis, QPQ(Quench-Polish-Quench), |
| Electro Polishing,Chrome Plating, Knurl, Laser etch Logo, etc. |
| Drawing format |
STEP,STP,GIS,CAD,PDF,DWG,DXF etc or samples. |
| Tolerance |
+/-0.01mm ~ +/-0.05mm |
| Surface roughness |
Ra 0.1~3.2 |
| Inspection |
Complete inspection lab with Micrometer, Optical Comparator, Caliper Vernier,CMM |
| Depth Caliper Vernier, Universal Protractor, Clock Gauge, Internal Centigrade Gauge |











