Recommended heat treatment for engine mount components?

H900 - maximum strength (>= 1,310 MPa) for high-load applications.

What is the lead time?

Sample 10-15 days. Batch 2-3 weeks. Rush service available.

Send drawings (PDF/STEP/IGS/DWG) with material, heat treatment, black oxide requirement, tolerance, threads, quantity. No drawing? Send sample/photo/sketch - free support.

What is the after-sales support policy?

30 days to report issue, solution in 7 days. Click 'Contact Supplier'.

Black Oxide Mechanical Parts for Engine Mounts with 17-4pH

Name: Black Oxide Mechanical Parts for Engine Mounts with 17-4pH
Brand: GUANNENG PRECISION MACHINERY CO.,LTD.
SKU: 2310456905

Guangdong, ChinaGUANNENG PRECISION MACHINERY CO.,LTD.

US$5.00

100-999 Pieces

US$3.00

1,000-9,999 Pieces

US$1.00

10,000+ Pieces

Product profile

Customization

Available

Application

Fastener, Auto and Motorcycle Accessory, Hardware Tool, Machinery Accessory

Standard

GB, EN, China GB Code, JIS Code, TEMA, ASME

Surface Treatment

Powder Coated

Production Type

Mass Production

Machining Method

CNC Machining

Material

Steel

Keywords 01

Black Oxide 17-4pH Engine Mounts

Keywords 02

Mil-Dtl-13924 Class 4 Coated Parts

Keywords 03

Anti-Glare Stainless Steel Brackets

Keywords 04

High Strength Precipitation Hardened Steel

Keywords 05

Black Oxide Coated Motor Mounts

Keywords 06

17-4pH H900 Heat Treated Components

Keywords 07

Corrosion Resistant Engine Brackets

Keywords 08

Precision CNC Machined 17-4pH Parts

Keywords 09

Blackened Stainless Steel Structural Supports

Keywords 10

Custom Engine Mount Hardware

Transport Package

Individual Packing + Wooden Case

Specification

OD68*L900mm

Trademark

GGN

Origin

China

HS Code

8466939000

Production Capacity

1000PCS

Key features

High Strength Material: 17-4PH stainless steel with tensile strength up to 1,310 MPa in H900 condition.

Anti-Glare Finish: Black oxide coating provides a uniform satin black appearance with reduced light reflection.

Military Standard Compliance: Coating meets MIL-DTL-13924 Class 4 standards for corrosion resistance and durability.

Dimensional Stability: Coating adds no measurable thickness, ideal for tight-tolerance components.

Customization Options: Full customization available from samples, designs, or minor modifications.

Fast Lead Time: Samples delivered in 10-15 days; batch orders completed in 2-3 weeks.

ISO9001 Certified: Manufacturer holds ISO9001:2015 certification with strict quality control systems.

100% Inspection: All products undergo 100% inspection before shipment with free inspection reports.

Company profile

Importers and ExportersHigh Repeat Buyers ChoiceFast Delivery

GUANNENG PRECISION MACHINERY CO.,LTD.

Guangdong, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 8 Years CertifiedNearest Port: Shenzhen PortAverage Response Time: ≤0.85h

AI-Powered supplier vetting

SummaryDongguan Guanneng Automation Technology Development Co., Ltd. is a China-based combined business entity identified in one record as a trade company, operating in Dongguan, Guangdong. It reports more than 15 years of machining-industry experience, while the company establishment date provided is 2018. Its stated capabilities include CNC machining, milling, grinding, wire cutting, turning, testing, assembly, and after-sales service. The supplier reports its own factory, multiple production lines, more than 10 production lines, and ISO9001:2015 certification. It serves machining, biomedical, automotive, semiconductor, automation, and petroleum machinery industries, and exports to East Asia, Europe, and North America. Lead times are stated as within 15 working days in both off-peak and peak seasons. Evidence is insufficient to assess financial credibility, innovation output, formal outsourcing or contract controls, overseas warehousing, traceability, or named customer cases. The audit record is dated November...

CertificationsThe supplier reports holding an ISO9001:2015 certificate and describes a dedicated quality control department and strict ISO9001-based production management system. A BV audit is also recorded for November 9, 2023 through November 8, 2024, although the audit result is listed as 0 without an explained scale.

After-Sales capabilityThe company description explicitly includes after-sales service among its integrated activities and states that it serves domestic and overseas enterprises. However, the records provide no specific response process, service coverage, repair policy, or overseas service infrastructure; overseas warehouse and showroom capabilities are marked unknown.

Production capacityThe supplier reports more than 15 years of machining-industry experience, its own factory, multiple production lines, and more than 10 production lines. It lists CNC machining, milling, grinding, wire cutting, and turning capabilities, serves several industrial sectors, and states lead times within 15 working days in both peak and off-peak seasons.

Customization capabilityThe product and service descriptions cover precision CNC machining, CNC turning, grinding, wire cutting, machinery parts, testing, and assembly. The supplier states that its production lines can meet different product needs and requirements, supporting customization, although no detailed engineering workflow, tolerance range, tooling policy, or sample-development evidence is provided.

Product Q&A

Q:Are you a manufacturer or trading company?

Direct manufacturer - 6,000 sqm, 17 years, 40+ CNC machines, ISO9001, 3D CMM.

Q:What is 17-4PH stainless steel?

Martensitic precipitation-hardening stainless steel offering high strength (up to 1,310 MPa), hardness, and corrosion resistance.

Q:What is black oxide coating?

Chemical conversion coating forming black magnetite (Fe3O4) finish on stainless steel. Provides anti-glare satin black appearance, corrosion resistance, and meets MIL-DTL-13924 Class 4 standards.

Q:Does black oxide add thickness to parts?

No - coating is approximately 1 micron (0.000020 inches) thick and adds no measurable thickness, ideal for tight-tolerance components.

Q:What are the benefits of black oxide for engine mounts?

Anti-glare finish, corrosion resistance (when sealed), uniform appearance, dimensional stability, and military specification compliance.