Stainless Steel Material 4340 Clamp Castings Black Phosphate Surface Process

Stainless Steel Material 4340 Clamp Castings Black Phosphate Surface Process

What we do:

FAQ:

Q: Are you a factory or trading company?
A: We are factory.

Q: What do I need for offering a quote?
A: Detailed drawings (PDF/STEP/IGS/DWG...) with material, quantity and surface treatment information.

Q: How about the MOQ?
A: MOQ depends on your need ,besides, we welcome trial order before mass-production.

Q: Can I get a quote without drawings?
A: Yes, we appreciate to receive your samples, pictures or drafts with detailed dimensions for accurate quotation.

Q: How long can I have the sample
A: Depends on your products and request, it usually takes 7-20days.

Q: Will my drawings be divulged if you benefit?
A: No, we pay much attention to protect our customers' privacy of drawings, signing NDA is also accepted if need.

Q: Is it possible to know how is my product going on without visiting our company?
A: We will offer a detailed products schedule and send weekly reports with pictures and videos

Q: How do you control the quality?
A: Material inspection--Check the material surface and roughly dimension.
Production first inspection--To ensure the critical dimension in mass production.
Sampling inspection--Check the quality before sending to the warehouse.
Final inspection--100% inspected before shipment.

Q: What will you do if we receive defective parts?
A: Please kindly send us the pictures, our engineers will find the solutions and remake them for you asap.

Casting production process:

Model making:
Molds for molding can be sand molds, metal molds or other materials.

Smelting metal:
Heat and melt the metal raw materials, and adjust the chemical composition to meet the performance requirements.

Pouring molding:
Pour the molten metal into the mold to fill the mold cavity.

Cooling and solidification:
The molten metal gradually solidifies after cooling to form the initial shape of the casting.

Cleaning and processing:
Remove excess surface materials such as flash and pouring risers, and perform necessary grinding or processing.

Heat treatment (optional):
According to the needs, annealing, quenching, tempering and other treatments are carried out to improve the performance of the casting.

Who we are

SND Foundry have been specializing in the production and sales of manhole cover and gully grating, valves, pipe & pipe fitings and metal castings products nearly 20 years. It is located in Wu'an Industrial Park, Handan City, Hebei Province. The park is the largest mechanical casting spare parts processing industrial park in Handan, with a complete supporting industry chain and convenient transportation.

SND has fully passed the ISO9001 quality management system certification. During the production process, it implements a number of strict detailed standards and conducts full-process quality control. Our company has well-equipped chemical laboratories and physical performance laboratories. A complete set of testing equipment such as Direct Reading Spectrometer, Metallographic Microscope, Rockwell Hardness Tester, Universal Material Testing Machine, Non destructive testing(NDT), and Three-dimensional Coordinate Measuring instrument can be used to effectively control chemical composition and ensure mechanical performance.

Company Mission:
Committed to creating high-quality products and service, creating a century enterprise trusted by customers, respected by society, the most valuable and internationally influential
Work Attitude: Responsibility Pragmatism Professional