Testing Laboratory
Precise inspection and certification
An in-house lab equipped with international-grade instruments certifies every production batch.
One plant in Samut Sakhon, ThailandSmall steel parts in bulk — screws, nuts, boltsQuote within 24 hours
Instruments & tests
- Vickers Hardness Tester (HV)
- Rockwell Hardness Tester (HRC, HRB)
- X-ray Fluorescence — coating thickness
- Salt Spray Test chamber
- Microstructure analysis
What can the in-house lab test?
Our in-house laboratory measures Vickers (HV) and Rockwell hardness, verifies coating thickness by X-ray (spot size down to 0.3 mm) and runs salt-spray testing. Every production lot ships with a certificate, so hardness and coating thickness stay traceable without an external lab.
Capacity & specs
M4 – M16
Part size
By agreement
Lead time
Flexible
MOQ
Standards we work to
The named standards buyers specify — the applicable standard, class and service condition are confirmed against your drawing and order.
ASTM B117 / ISO 9227
Neutral salt spray (NSS) — hours to white / red rust.
ISO 6507 / ASTM E384
Vickers hardness (HV), incl. micro-Vickers on cases and thin sections.
ISO 6508
Rockwell hardness (HRC / HRB).
ISO 2639 / ASTM E1077
Effective / total case depth by micro-hardness traverse.
ISO 3497
Coating thickness by X-ray fluorescence (XRF) — spot to 0.3 mm.
ISO 898-1
Surface decarburization assessment for heat-treated fasteners.
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Frequently asked questions
Can you run salt-spray (ASTM B117 / ISO 9227) testing?
Yes. Our in-house chamber runs neutral salt spray (NSS) per ASTM B117 / ISO 9227, reporting hours to white and red rust.
What hardness tests do you offer?
Vickers (HV, ISO 6507 / ASTM E384) and Rockwell (HRC/HRB, ISO 6508), including micro-Vickers on cases and thin sections.
Can you measure case depth?
Yes. Effective and total case depth per ISO 2639 / ASTM E1077 by micro-hardness traverse; the effective-case limit is set per your drawing.
How do you verify coating thickness?
By X-ray fluorescence (XRF) per ISO 3497 — non-destructive, spot size down to 0.3 mm — reported on the certificate.
Do you check decarburization?
Yes. Surface decarburization is assessed per ISO 898-1 for heat-treated fasteners.
Do you issue a test certificate?
Yes. Every production lot ships with a certificate, and tests can also be run on customer-supplied samples. Accreditation scope is confirmed per requirement.
Is hardness and salt spray testing done in house?
In our own lab: Rockwell and Vickers hardness testing, coating thickness, and a neutral salt spray test to ISO 9227 / ASTM B117 for whatever duration the drawing calls for, with a test certificate issued per lot under ISO 9001:2015.