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Corrosion Resistant High Pressure CNC Machined Circular Parts with Dimensional Accuracy for Oil, Gas & Chemical Industries

Corrosion Resistant High Pressure CNC Machined Circular Parts with Dimensional Accuracy for Oil, Gas & Chemical Industries

الـ MOQ: 1000 قطعة
السعر: $0.5-2
العبوة القياسية: حالة خشبية
فترة التسليم: 30 يوما
طريقة الدفع: د/أ، د/ف، تي/تي
قدرة التوريد: 10000 قطعة/شهر
معلومات مفصلة
مكان المنشأ
تشينغداو، الصين
اسم العلامة التجارية
Qingdao Sande Tech Co.,Ltd
إصدار الشهادات
ISO, DIN, AISI, ASTM, BS, JIS, etc.
رقم الموديل
تصنيع المعدات الأصلية
التوافق:
السفن البحرية
نوع المعالجة:
الخراطة والطحن باستخدام الحاسب الآلي
سعة:
10 ، 000 قطعة في الشهر
درجة:
4.8
التطبيقات:
مناسبة لمختلف الصناعات
تقتيش:
فحص الأبعاد ومراقبة الجودة بنسبة 100%
تاريخ التسليم او الوصول:
45-60 أيام
الاستخدام:
صناعي
وصف المنتج
OEM CNC Circular Parts – Oil, Gas & Chemical Industry
Product Overview

Our OEM Custom CNC Machined Circular Parts are precision-engineered components designed specifically for demanding applications in the petroleum, natural gas, and chemical processing industries. Manufactured using advanced CNC turning and machining centers, these circular parts deliver exceptional dimensional accuracy, surface finish, and mechanical performance under extreme operating conditions including high pressure, high temperature, and corrosive environments.

Typical Circular Part Types
Part Category Examples
Rings Precision retaining rings, sealing rings, snap rings, spacer rings
Discs Round cover plates, blind discs, orifice plates, valve discs
Bushings Cylindrical bushings, sleeves, wear bushings, guide bushings
Flanges Circular flanges, adapter flanges, blind flanges
Collars Shaft collars, locking collars, stop collars
Housings Circular housings, end caps, circular covers
Seats Valve seats, ball valve seats, ring seats
Impellers Closed impellers, semi-open impellers (circular type)
Materials Available

We offer a wide range of materials suitable for sour service, high-pressure, and corrosive media environments:

Material Category Grades / Specifications
Stainless Steel 304, 304L, 316, 316L, 321, 347, 17-4PH, 15-5PH
Duplex / Super Duplex 2205 (F51), 2507 (F53), 2304
Nickel Alloys Inconel 625, Inconel 718, Monel 400, Monel K500
Hastelloy Hastelloy C276, C22, B2
Titanium Grade 2, Grade 5 (Ti-6Al-4V)
Carbon / Alloy Steel A105, A350 LF2, 4140, 4340, 8620
Copper Alloys Bronze, Brass, Aluminum Bronze
Industry Applications
Petroleum Industry
  • Downhole tools (drill collars, stabilizers, crossovers)
  • Wellhead equipment (casing hangers, tubing heads)
  • Mud pump components (pistons, valve seats, liners)
  • Rotary system parts (bushings, swivels)
  • Blowout preventer (BOP) components
Natural Gas Industry
  • Gas compressor components (valve plates, piston rings)
  • Pipeline fittings (orifice plates, blind discs)
  • LNG processing equipment (sealing rings, flanges)
  • Gas metering and regulation parts
Chemical & Petrochemical Industry
  • Chemical reactor components (agitator shafts, baffle rings)
  • Heat exchanger parts (tube sheets, baffle plates)
  • Pump and valve components (impellers, valve seats, stems)
  • Mixer and agitator parts (dispersion discs, rotor rings)
  • Corrosion-resistant pipe fittings
Customization Options
Option Details
Dimensions Any custom size based on 2D drawing or 3D model (STEP/IGS)
Tolerances Standard or tighter as specified
Materials Customer-specified or recommended based on application
Heat Treatment Annealing, solution annealing, age hardening, stress relieving
Surface Coating PTFE / Teflon coating, Electroless nickel plating, Zinc plating, Anodizing (aluminum)
Marking Laser engraving, dot peen (material, heat number, part number)
Packaging Standard export cartons, wooden cases, anti-rust oil + bubble wrap, or custom
Corrosion Resistant High Pressure CNC Machined Circular Parts with Dimensional Accuracy for Oil, Gas & Chemical Industries 0
Why Choose Us?
  • ✅ 10+ years experience in CNC machining for oil, gas & chemical industries
  • ✅ API / NACE / ISO compliant manufacturing processes
  • ✅ Full in-house capability - CNC turning, milling, grinding, inspection
  • ✅ Wide material range including corrosion-resistant superalloys
  • ✅ Competitive pricing with high-quality standards
  • ✅ On-time delivery with complete documentation
  • ✅ Technical support for design optimization
Frequently Asked Questions
General Questions
Q1: What types of circular parts can you manufacture?
A: We manufacture a wide range of circular components including:
  • Precision rings (retaining, sealing, snap, spacer)
  • Discs (blind discs, orifice plates, valve discs, cover plates)
  • Bushings & sleeves (cylindrical, wear, guide)
  • Circular flanges & adapter flanges
  • Shaft collars & locking collars
  • Valve seats & ring seats
  • Circular housings & end caps
Any custom circular part based on your drawing or sample.
Q2: What materials do you offer for oil, gas & chemical applications?
A: We offer corrosion-resistant and high-strength materials suitable for harsh environments:
  • Stainless Steel: 304/316/316L, 17-4PH, 321, 347
  • Duplex / Super Duplex: 2205 (F51), 2507 (F53)
  • Nickel Alloys: Inconel 625/718, Monel 400/K500
  • Hastelloy: C276, C22
  • Titanium: Grade 2, Grade 5 (Ti-6Al-4V)
  • Carbon/Alloy Steel: A105, 4140, 4340 (with anti-corrosion coating)
Q3: What is your typical tolerance capability?
A: Our standard tolerance is ±0.01mm (±0.0004″). For critical dimensions, we can achieve ±0.005mm (±0.0002″) depending on part geometry and material.
Q4: What is the maximum diameter you can machine?
A: Our CNC turning capacity covers OD from 5mm to 800mm (0.2″ to 31.5″). For larger diameters, please contact us for special solutions.
Customization & OEM
Q5: Do you offer OEM custom parts?
A: Yes, we are an OEM manufacturer. We produce parts strictly according to customer drawings, specifications, or physical samples. We do not stock standard finished parts -- everything is made-to-order.
Q6: What file formats do you accept for drawings?
A: We accept:
  • 2D Drawings: PDF, DWG, DXF
  • 3D Models: STEP, STP, IGS, X_T, SLDPRT
  • Physical samples (for reverse engineering)
Q7: Can you help with material selection?
A: Yes. If you are unsure which material is best for your application (e.g., sour service, high temperature, seawater), our engineering team will recommend the most suitable material based on your operating conditions.
Q8: Do you provide samples before mass production?
A: Yes. We offer prototype/sample development for customer approval before moving to full production. Sample lead time is typically 15-30 days.
Quality & Compliance
Q9: What quality standards do you comply with?
A: We comply with:
  • API 6A / 7K / 17D (oil & gas equipment)
  • ASME B16.5 / B16.47 (flange dimensions)
  • NACE MR0175 / ISO 15156 (sour service / H₂S resistant)
  • ISO 9001:2015 (quality management)
  • IATF 16949 (available upon request)
Q10: Do you provide material traceability?
A: Yes. Full material traceability is provided from mill certificate to finished part. Each part can be marked with heat number and material grade for complete traceability.
Q11: What inspections do you perform?
A: Our standard inspection package includes:
  • 100% dimensional inspection (CMM / calipers / micrometers)
  • PMI (Positive Material Identification)
  • Hardness testing
  • Visual & surface finish inspection
Additional inspections available upon request:
  • Tensile / impact testing
  • Hydrostatic / pneumatic pressure testing
  • NDT: Ultrasonic, Dye penetrant, Magnetic particle
  • X-ray inspection
Q12: Are your parts suitable for sour service (H₂S environment)?
A: Yes. We manufacture parts compliant with NACE MR0175 / ISO 15156 for sour service applications. We use appropriate materials (e.g., 316L, Inconel, Hastelloy) and follow strict hardness control requirements.
Production & Lead Time
Q13: What is your typical lead time?
A:
  • Prototype / Sample: 15-30 days
  • Small batch (≤1000 pcs): 30-45 days
  • Mass production (5000-10000+ pcs): 60-90 days
Lead time depends on part complexity, material availability, and quantity.
Q14: What is your minimum order quantity (MOQ)?
A: Production: 1000 pieces (flexible depending on part size and complexity). For very large or very small parts, MOQ can be negotiated.
Q15: Do you offer heat treatment and surface finishing?
A: Yes. We offer in-house or partnered services for:
  • Heat treatment: Annealing, solution annealing, age hardening, stress relieving
  • Surface finishing: Polishing, deburring, passivation
  • Coatings: PTFE/Teflon, electroless nickel plating, zinc plating, anodizing (for aluminum), anti-corrosion painting
Order & Shipping
Q16: How do I request a quote?
A: Please send us:
  • Drawing (PDF/DWG/STEP) or clear photos with dimensions
  • Material specification (if known)
  • Quantity required
  • Any special requirements (tolerance, surface finish, coating, inspection)
We will reply within 24 hours with technical feedback and quotation.
Q17: What payment terms do you accept?
A: Typical payment terms:
  • 30% deposit by T/T (bank transfer)
  • 70% balance before shipment or against copy of Bill of Lading
  • L/C at sight for larger orders
  • Other terms negotiable
Q18: How do you package the parts for shipment?
A: Standard packaging includes:
  • Anti-rust oil coating (for steel parts)
  • Bubble wrap / foam protection
  • Sealed plastic bag
  • Strong export carton or wooden case
  • Labeling with part number and quantity
Custom packaging is available upon request.
المنتجات الموصى بها
المنتجات
تفاصيل المنتجات
Corrosion Resistant High Pressure CNC Machined Circular Parts with Dimensional Accuracy for Oil, Gas & Chemical Industries
الـ MOQ: 1000 قطعة
السعر: $0.5-2
العبوة القياسية: حالة خشبية
فترة التسليم: 30 يوما
طريقة الدفع: د/أ، د/ف، تي/تي
قدرة التوريد: 10000 قطعة/شهر
معلومات مفصلة
مكان المنشأ
تشينغداو، الصين
اسم العلامة التجارية
Qingdao Sande Tech Co.,Ltd
إصدار الشهادات
ISO, DIN, AISI, ASTM, BS, JIS, etc.
رقم الموديل
تصنيع المعدات الأصلية
التوافق:
السفن البحرية
نوع المعالجة:
الخراطة والطحن باستخدام الحاسب الآلي
سعة:
10 ، 000 قطعة في الشهر
درجة:
4.8
التطبيقات:
مناسبة لمختلف الصناعات
تقتيش:
فحص الأبعاد ومراقبة الجودة بنسبة 100%
تاريخ التسليم او الوصول:
45-60 أيام
الاستخدام:
صناعي
الحد الأدنى لكمية:
1000 قطعة
الأسعار:
$0.5-2
تفاصيل التغليف:
حالة خشبية
وقت التسليم:
30 يوما
شروط الدفع:
د/أ، د/ف، تي/تي
القدرة على العرض:
10000 قطعة/شهر
وصف المنتج
OEM CNC Circular Parts – Oil, Gas & Chemical Industry
Product Overview

Our OEM Custom CNC Machined Circular Parts are precision-engineered components designed specifically for demanding applications in the petroleum, natural gas, and chemical processing industries. Manufactured using advanced CNC turning and machining centers, these circular parts deliver exceptional dimensional accuracy, surface finish, and mechanical performance under extreme operating conditions including high pressure, high temperature, and corrosive environments.

Typical Circular Part Types
Part Category Examples
Rings Precision retaining rings, sealing rings, snap rings, spacer rings
Discs Round cover plates, blind discs, orifice plates, valve discs
Bushings Cylindrical bushings, sleeves, wear bushings, guide bushings
Flanges Circular flanges, adapter flanges, blind flanges
Collars Shaft collars, locking collars, stop collars
Housings Circular housings, end caps, circular covers
Seats Valve seats, ball valve seats, ring seats
Impellers Closed impellers, semi-open impellers (circular type)
Materials Available

We offer a wide range of materials suitable for sour service, high-pressure, and corrosive media environments:

Material Category Grades / Specifications
Stainless Steel 304, 304L, 316, 316L, 321, 347, 17-4PH, 15-5PH
Duplex / Super Duplex 2205 (F51), 2507 (F53), 2304
Nickel Alloys Inconel 625, Inconel 718, Monel 400, Monel K500
Hastelloy Hastelloy C276, C22, B2
Titanium Grade 2, Grade 5 (Ti-6Al-4V)
Carbon / Alloy Steel A105, A350 LF2, 4140, 4340, 8620
Copper Alloys Bronze, Brass, Aluminum Bronze
Industry Applications
Petroleum Industry
  • Downhole tools (drill collars, stabilizers, crossovers)
  • Wellhead equipment (casing hangers, tubing heads)
  • Mud pump components (pistons, valve seats, liners)
  • Rotary system parts (bushings, swivels)
  • Blowout preventer (BOP) components
Natural Gas Industry
  • Gas compressor components (valve plates, piston rings)
  • Pipeline fittings (orifice plates, blind discs)
  • LNG processing equipment (sealing rings, flanges)
  • Gas metering and regulation parts
Chemical & Petrochemical Industry
  • Chemical reactor components (agitator shafts, baffle rings)
  • Heat exchanger parts (tube sheets, baffle plates)
  • Pump and valve components (impellers, valve seats, stems)
  • Mixer and agitator parts (dispersion discs, rotor rings)
  • Corrosion-resistant pipe fittings
Customization Options
Option Details
Dimensions Any custom size based on 2D drawing or 3D model (STEP/IGS)
Tolerances Standard or tighter as specified
Materials Customer-specified or recommended based on application
Heat Treatment Annealing, solution annealing, age hardening, stress relieving
Surface Coating PTFE / Teflon coating, Electroless nickel plating, Zinc plating, Anodizing (aluminum)
Marking Laser engraving, dot peen (material, heat number, part number)
Packaging Standard export cartons, wooden cases, anti-rust oil + bubble wrap, or custom
Corrosion Resistant High Pressure CNC Machined Circular Parts with Dimensional Accuracy for Oil, Gas & Chemical Industries 0
Why Choose Us?
  • ✅ 10+ years experience in CNC machining for oil, gas & chemical industries
  • ✅ API / NACE / ISO compliant manufacturing processes
  • ✅ Full in-house capability - CNC turning, milling, grinding, inspection
  • ✅ Wide material range including corrosion-resistant superalloys
  • ✅ Competitive pricing with high-quality standards
  • ✅ On-time delivery with complete documentation
  • ✅ Technical support for design optimization
Frequently Asked Questions
General Questions
Q1: What types of circular parts can you manufacture?
A: We manufacture a wide range of circular components including:
  • Precision rings (retaining, sealing, snap, spacer)
  • Discs (blind discs, orifice plates, valve discs, cover plates)
  • Bushings & sleeves (cylindrical, wear, guide)
  • Circular flanges & adapter flanges
  • Shaft collars & locking collars
  • Valve seats & ring seats
  • Circular housings & end caps
Any custom circular part based on your drawing or sample.
Q2: What materials do you offer for oil, gas & chemical applications?
A: We offer corrosion-resistant and high-strength materials suitable for harsh environments:
  • Stainless Steel: 304/316/316L, 17-4PH, 321, 347
  • Duplex / Super Duplex: 2205 (F51), 2507 (F53)
  • Nickel Alloys: Inconel 625/718, Monel 400/K500
  • Hastelloy: C276, C22
  • Titanium: Grade 2, Grade 5 (Ti-6Al-4V)
  • Carbon/Alloy Steel: A105, 4140, 4340 (with anti-corrosion coating)
Q3: What is your typical tolerance capability?
A: Our standard tolerance is ±0.01mm (±0.0004″). For critical dimensions, we can achieve ±0.005mm (±0.0002″) depending on part geometry and material.
Q4: What is the maximum diameter you can machine?
A: Our CNC turning capacity covers OD from 5mm to 800mm (0.2″ to 31.5″). For larger diameters, please contact us for special solutions.
Customization & OEM
Q5: Do you offer OEM custom parts?
A: Yes, we are an OEM manufacturer. We produce parts strictly according to customer drawings, specifications, or physical samples. We do not stock standard finished parts -- everything is made-to-order.
Q6: What file formats do you accept for drawings?
A: We accept:
  • 2D Drawings: PDF, DWG, DXF
  • 3D Models: STEP, STP, IGS, X_T, SLDPRT
  • Physical samples (for reverse engineering)
Q7: Can you help with material selection?
A: Yes. If you are unsure which material is best for your application (e.g., sour service, high temperature, seawater), our engineering team will recommend the most suitable material based on your operating conditions.
Q8: Do you provide samples before mass production?
A: Yes. We offer prototype/sample development for customer approval before moving to full production. Sample lead time is typically 15-30 days.
Quality & Compliance
Q9: What quality standards do you comply with?
A: We comply with:
  • API 6A / 7K / 17D (oil & gas equipment)
  • ASME B16.5 / B16.47 (flange dimensions)
  • NACE MR0175 / ISO 15156 (sour service / H₂S resistant)
  • ISO 9001:2015 (quality management)
  • IATF 16949 (available upon request)
Q10: Do you provide material traceability?
A: Yes. Full material traceability is provided from mill certificate to finished part. Each part can be marked with heat number and material grade for complete traceability.
Q11: What inspections do you perform?
A: Our standard inspection package includes:
  • 100% dimensional inspection (CMM / calipers / micrometers)
  • PMI (Positive Material Identification)
  • Hardness testing
  • Visual & surface finish inspection
Additional inspections available upon request:
  • Tensile / impact testing
  • Hydrostatic / pneumatic pressure testing
  • NDT: Ultrasonic, Dye penetrant, Magnetic particle
  • X-ray inspection
Q12: Are your parts suitable for sour service (H₂S environment)?
A: Yes. We manufacture parts compliant with NACE MR0175 / ISO 15156 for sour service applications. We use appropriate materials (e.g., 316L, Inconel, Hastelloy) and follow strict hardness control requirements.
Production & Lead Time
Q13: What is your typical lead time?
A:
  • Prototype / Sample: 15-30 days
  • Small batch (≤1000 pcs): 30-45 days
  • Mass production (5000-10000+ pcs): 60-90 days
Lead time depends on part complexity, material availability, and quantity.
Q14: What is your minimum order quantity (MOQ)?
A: Production: 1000 pieces (flexible depending on part size and complexity). For very large or very small parts, MOQ can be negotiated.
Q15: Do you offer heat treatment and surface finishing?
A: Yes. We offer in-house or partnered services for:
  • Heat treatment: Annealing, solution annealing, age hardening, stress relieving
  • Surface finishing: Polishing, deburring, passivation
  • Coatings: PTFE/Teflon, electroless nickel plating, zinc plating, anodizing (for aluminum), anti-corrosion painting
Order & Shipping
Q16: How do I request a quote?
A: Please send us:
  • Drawing (PDF/DWG/STEP) or clear photos with dimensions
  • Material specification (if known)
  • Quantity required
  • Any special requirements (tolerance, surface finish, coating, inspection)
We will reply within 24 hours with technical feedback and quotation.
Q17: What payment terms do you accept?
A: Typical payment terms:
  • 30% deposit by T/T (bank transfer)
  • 70% balance before shipment or against copy of Bill of Lading
  • L/C at sight for larger orders
  • Other terms negotiable
Q18: How do you package the parts for shipment?
A: Standard packaging includes:
  • Anti-rust oil coating (for steel parts)
  • Bubble wrap / foam protection
  • Sealed plastic bag
  • Strong export carton or wooden case
  • Labeling with part number and quantity
Custom packaging is available upon request.