Question 1

Are you a manufacturer or trading company?

Accepted Answer

We are a direct manufacturer - 2,000 sqm, 17 years of experience, 30+ CNC machines including 5-axis centers, ISO9001, 3D CMM. Send inquiry for a live video tour of our shop floor.

Question 2

What is 17-4 PH stainless steel?

Accepted Answer

17-4 PH (UNS S17400) is a martensitic precipitation-hardening stainless steel that provides high strength and hardness along with excellent corrosion resistance. It has been successfully used in oilfield services for over 13 years.

Question 3

What is the advantage of 5-axis machining for Christmas tree components?

Accepted Answer

5-axis machining allows complex Christmas tree components (valve bodies, choke bodies, connectors) to be machined in a single setup, eliminating tolerance stack-up and enabling complex geometries like angled ports and compound sealing surfaces. It also reduces lead time and improves surface finish.

Question 4

What heat treatment condition do you recommend for Christmas tree components?

Accepted Answer

H900 - maximum strength (>= 1,310 MPa), ideal for high-pressure Christmas tree valves. H1150 - highest ductility, good for components requiring toughness. H1150M or DH1150 - NACE MR0175 compliant for sour gas service.

Question 5

What is the maximum part size you can machine?

Accepted Answer

1500mm x 500mm x 500mm - suitable for large Christmas tree valve bodies, bonnets, and custom components.

Question 6

Can you hold tight tolerance on 17-4 PH?

Accepted Answer

Yes. With 5-axis machining, rigid setups, and CMM inspection, we consistently achieve +/-0.003mm on critical dimensions.

Question 7

What thread types can you machine?

Accepted Answer

NPT, NPTF, BSPP, BSPT, UN/UNF/UNC, Metric, STC, LC, TBG, BC, IJ, EUE, NUE, STUB ACME, API-style connections, and custom threads.

Question 8

Do you provide heat treatment for 17-4 PH?

Accepted Answer

Yes - we partner with certified heat treatment vendors. All heat treatment cycles are documented with temperature and time records.

Question 9

How to get a quote?

Accepted Answer

Send drawings (PDF/STEP/IGS/DWG) with: material (17-4 PH), heat treatment condition required (H900, H1150, etc.), 5-axis machining requirement, tolerance, thread type (if any), surface finish requirement, NACE requirement (if any), and quantity. No drawing? Send a sample, photo, or sketch - free engineering support.

Question 10

What is your lead time for 5-axis machined 17-4 PH Christmas tree components?

Accepted Answer

Sample (1-5 pcs): 12-18 days. Batch production: 3-4 weeks. Rush service - please inquire.

Question 11

Do you offer samples?

Accepted Answer

Yes. Sample fee is fully refundable upon mass production order. Sample includes full inspection report and material certificate.

Question 12

Can you provide NACE MR0175 compliance documentation?

Accepted Answer

Yes - we can provide material certificates and heat treatment documentation confirming NACE MR0175 compliance for H1150M or DH1150 conditions.

Question 13

What after-sales support do you offer?

Accepted Answer

30 days to report any issue; solution within 7 days. Click 'Contact Supplier'.

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