Need reliable quarry forgings with perfect heat treatment? Here's what 15+ industry veterans shared with us

❶ Why Heat Treatment Matters for Quarry Forgings?

"Our D6AC drill bits failed after 3 months in quarrying"​ – said a mining engineer from Australia. The key? Improper tempering process.

Pro Tip: Always ask for heat treatment reports​ with hardness mapping (like Brinell 380-420)

❷ 3 Must-Have Certifications for Quarry Forgings

1. ISO 9001:2015​

Ensures traceability from raw material (ESR ingots) to final product

2. API 7-1​

Critical for drill stem elements subjected to 10,000+ cycles

3. PED 2014/68/EU​

Mandatory for pressure-containing parts in EU quarries

Real Case: A Texas quarry saved $270k/year by switching to ISO-certified supplier with quenching & tempering process​ optimization

❸ How to Verify Supplier's Heat Treatment Capability?

Step 1: Check furnace capacity

• Minimum 8m³ for large quarry forgings

• Dual-zone control for uniform heating

Step 2: Demand NDT reports

• UT testing (ASME V) for internal cracks

• MT testing (ISO 9712) for surface defects

Step 3: Review cycle parameters

❹ Top 3 Questions from Quarry Managers

Q: "How to reduce rework from heat treatment?"

A: Opt for quenching and tempering process​ with controlled atmosphere furnaces – reduces oxidation by 70%

Q: "Minimum order quantity for custom forgings?"

A: Most factories accept 500kg MOQ, but discuss batch sizes to optimize lead times

Q: "Can you provide post-treatment services?"

A: Yes! Leading suppliers offer:

• Shot peening (Sa 2.5)

• Phosphate coating

• Laser marking

❺ Our Recommendation

Osten Machinery (Xuzhou) Co., Ltd.​

• 12,000㎡ facility with 10,000-ton forging presses

• Dedicated heat treatment line (2 furnaces: 8m³ + 15m³)

• ISO 9001/CE/SGS certified

• Phone: +086 15852310290

Client Feedback:

"Their D-6AC drill bits lasted 3x longer than previous suppliers" – Mining Co. South Africa

Final Tips:

1. Always request heat treatment curve charts​

2. Specify tempering temperature tolerance (±15°F)

3. Ask for material certificates (e.g., S45c carbon steel)

Looking for trusted quarry forging partners? Drop your requirements below!

# How to Choose China Quarry Forgings Supplier with   # Quenching and Tempering Process 

Related columns: 【 Industry news18872 】 【 Technology blog1420 】

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