1. Grade: BUTT WELD FITTINGS
Carbon Steel :A234 WPB and WPHY42 to 80
Low Temperature Pipes :A420 WP3 and WP6
Stainless Steel & Special Stainess Steel A403 WP 304/304L, WP316/316L, WP310, 317, 321, 347, 410, 904, H grades
A815 UNS S31803 – Duplex 2205 A815 UNS S32750 / S32760 - Super Duplex 2507
Alloys Steel :A234 WP5 / WP9 / WP11 / WP22 / WP91
Special Alloys Nickel Alloys
Nickel 200/201 - B366 - UNS N02200/N02201 Alloy 400 - B366 - UNS N04400 - Monel® 400
Alloy 600 - B366- UNS N06600 - Inconel® 600 Alloy 625 - B366 - UNS N06625 - Inconel® 625
Alloy 800H/800HT - B366 - UNS N08810/N08811 - Incoloy® 800H/HT Alloy 825 - B366 - UNS N08825 - Incoloy® 825
Alloy 276 - B366 - UNS N10276 - Hastelloy® C-276
Titanium Alloys :B363 Gr 1 / 2 / 5 / 7
2. Size: 1/2''---48''
3. Standard:JIS , DIN , ANSI, EN , GOST
4. Certification: ISO9001, SGS, CTI, ROHS
5:Inspection Procedures
Butt-welding fittings are subjected to strict in-process inspection at each stage of the production process –from starting materials handling to finished product shipping. We are visually examined for conformity to company specifications and tested under the applicable ASTM, ASME, MSS and JIS codes and standards. We are also tested to make sure we conform to our intended use. Upon request, we call in officially certified test agents to witness the inspection procedures. Butt-welding fitting are manufactured in conformity with the following standard.
Applicable standards
ASTM A234 Pipe Fittings of Wrought Carbon Steel and Alloy Steel for Moderate and High Temperatures Service
ASTM A403 Wrought Austenitic Stainless Steel Piping Fittings
ASTM A420 Piping Fittings of Wrought Carbon Steel and Alloy Steel for Low- Temperatures Service
ASTM A860 Wrought High-Strength Low-Alloy Steel Butt-welding Fittings
ASME B16.9 Factory- Made Wrought Steel Butt-welding Fittings
MSS SP-43 Wrought Stainless Steel Butt-welding Fittings
MSS SP-75 High- Test Wrought Steel Butt-welding Fittings
JIS B2311 Steel Butt-Welding Pipe Fittings for Ordinary Use
JIS B2312 Steel Butt-Welding Pipe Fittings
JIS B2313 Steel Plate Butt-Welding Pipe Fittings
.
STARTING MATERIAL RECEIVING INSPECTION
Butt-welding fittings are made of materials which meet ASTM and intracompany specifications.
Starting material inspection is carried out at follows:
1) Dimensional Inspection
Dimensions are inspected at each end of the purchased material.
2) Visual Inspection
Inspected is performed according to OK Fitting . “acceptable surface condition” standard.
3) Collating
Judgement is made as to whether is worthy of the inspection by computorised collating the described items with the materials certificates.
The following other inspections are performed if necessary.
- Ultrasonic Examination - Magnetic Particle Examination - Liquid Penetrant Examination
- Ultrasonic Thickness Inspection - Mechanical Test
- Others
IN-PROCESS INSPECTION
Butt-welding fittings are manufactured with carefully selected materials of the finest metallurgical quality on well-controlled jigs, tools or molds based on ok fitting Various working standards. Meeting quality specifications is a key feature of ok fitting butt-welding fittings.
The following are the major in-process inspection items.
- Visual Inspection - Dimensional Inspection - Shape Inspection - Hardness Test
- Temperature Check - Processing Conditions Check - Material Identification ( by marking )
- Others
FINAL INSPECTION
The final inspection of ok fitting butt-welding fitting is performed as follows:
1) Standard Product Inspection
Applicable for ok fitting butt-welding fittings produced under ASME B16.9 and other specifications
VISUAL INSPECTION
Butt-welding fittings are visually inspected to confirm that both internal and external surfaces are smooth and without harmful defects. ok fitting . “acceptable surface condition” standard is used as the standard for visual tests.
DIMENSIONAL INSPECTION
Butt-welding fittings are inspected for conformity with ASME or MSS and JIS dimensional tolerances
2) Special Product Inspection
Applicable for every products manufactured to meet specifications requested by customers.
VISUAL INSPECTION
Butt-welding fittings are visually inspected. Criteria are based on those of the standard product.
Special specifications are determined by agreement between the customer and ok fitting
DIMENSIONAL INSPECTION
The inspection is usually based on specifications stipulated by the customer.
SPECIAL INSPECTION
In the case of special requirements specified by the customer, nondestructive examinations and mechanical tests are performed.
We offer a wide range of pipe fittings and flanges. Our range of pipe fittings and flanges include carbon steel pipe fittings, alloy steel pipe fittings, forged and butt weld steel fittings, flanges, tee’s. These fittings are available in size range from ¼” Outside Diameter through to 48” Outside Diameter. We stock all the available grades in fittings and flanges.
Specifications and Grades:> SA-132, SA-234, SA-860, SA-420, SA-105 > SA-350, SA-694
Flanges are available in types:
> Blind Type Flange
> Slip on Type Flange
> Threaded Type Flange
> Welded Neck Type Flange
> Socket-Welded Type Flange
Sizes Ranges from ½” to 50”
Material from conventional Cast Carbon Steel, Stainless Steel, 10Crm9-10 and 13Crm44/4-5.
Pressure Ratings available in PN6, PN10, PN16, PN25, PN40, PN64, Ansi 150, Ansi 300, Ansi 600, Ansi 900, Ansi 1500 and Ansi 2500.
Reducer
> Available in both Concentric and Eccentric; both in Standard and Sanitary type
> Size Ranges DN15-DN600 (1/2”- 24”)
> Wall thickness S10S – S160S
> Standards: ASME/ANSI B16.9, GB/T12459, GB/T13401, SH3408, SH3409, HG/T21635, HG/T21631, MSS SP-43, DIN 2605, JIS B2313
> Material: Carbon Steel, Stainless Steel, 10CrMo910, 13Crm44-5
ELBOW
> Available in 45, 90, 180 degree, both in Standard and Sanitary Types
> Size Ranges: DN15-DN600 (1/2” – 24”)
> Wall thickness: SCH10S – SCH160S.
> Standards: ASME/ANSI B16.9, GB/T12459, GB/T13401, SH3408, SH3409, HG/T21635, HG/T21631, MSS SP-43, DIN 2605, JIS B2313.
> Materials: Carbon Steel, Stainless Steel, 10Crmo910 and 13Crm44-5.
> Available in Short and Long Radius
CAPS
Size Ranges: DN15-DN600 (1/2” – 24”)
> Wall thickness: SCH10S – SCH160S.
> Standards: ASME/ANSI B16.9, GB/T12459, GB/T13401, SH3408, SH3409, HG/T21635, HG/T21631, MSS SP-43, DIN 2605, JIS B2313.
> Materials: Carbon Steel, Stainless Steel, 10Crmo910 and 13Crm44-5
TEE'S
Available in both equal and unequal; Standard and Sanitary Types
> Size Ranges: DN15-DN600 (1/2” – 24”)
> Wall thickness: SCH10S – SCH160S.
> Standards: ASME/ANSI B16.9, GB/T12459, GB/T13401, SH3408, SH3409, HG/T21635, HG/T21631, MSS SP-43, DIN 2605, JIS B2313.
> Materials: Carbon Steel, Stainless Steel, 10Crmo910 and 13Crm44-5
Global Scale and Purchasing Power
Long-Standing Mill and Manufacturing Relationships
Product and Technical Knowledge
Factory
Workshop
Our Workshop
Warehouse
Our Warehouse
Team
Our Team
Packing Details : Standard Exported Packing
Delivery Details : 3-30 days after order
We provide experienced document, quality, and project management services to ensure that customers’ materials are delivered as required and on schedule, including coordination with multiple parties involved within a complex project.
Size
Size: 1/2" up to 60"
Schedule from 20 up to XXS
Type: Elbow 45° Elbow, 90°, Elbow Equal and Reducing Tee, Concentric and Eccentric Reducer, Cap Bend Special Radius (2,5D-3D-5D), Split Tee;
Materials: ASTM A 234 WPB 5-9-11-12-22; ASTM A 860 WPHY42-46-52-60-65-70; ASTM A 420 WPL 3,6
Standards; ASME, API, NORSOK, DIN, BS; JIS, KS
One Stop Service
At OK Fitting we understand that our clients need a service that goes beyond product supply and we strive to offer a turnkey solution that they can trust.
Our One Stop Service is more than managing the project; we offer material consultation, design and calculations, prefabrication services and handle all quality plans, global logistics and documentation. However simple or complex your requirements, our experienced engineers can offer you the service that best meets your job requirements and schedules.
Quality/HSE
The energy and infrastructure sectors are subject to rigorous standards related to health, safety, and the environment. Our customers must be confident that the materials they use are fully certified, traceable, and meet applicable quality specifications.
Q: Are you trading company or manufacturer ?
A: We are factory.
Q: How long is your delivery time?
A: Generally it is 5-10 days if the goods are in stock. or it is 15-20 days if the goods are not in stock, it is according to quantity.
Q: Do you provide samples ? is it free or extra ?
A: Yes, we could offer the sample for free charge but do not pay the cost of freight.
Q: What is your terms of payment ?
A: Payment<=1000USD, 100% in advance. Payment>=1000USD, 30% T/T in advance ,balance before shippment.
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