| Customization: | Available |
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| Material: | ASTM A453 Grade 660 Class a |
| Type: | Stud Head |
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XIAMEN QISHINE
XIAMEN QISHINE IMP. & EXP. Co., Ltd., is a globally recognized and renowned pipeline product supplier specializing in the provision of a wide array of pipeline essentials, from fasteners to gaskets. 
We take pride in catering to a broad range of clientele across various industries and projects worldwide, with a strategic focus on Engineering, Procurement, and Construction (EPC) companies and pipeline construction projects.
We have more than ten years of pipeline product development&sales experience, so we have a wealth of relevant experience and problem solving ability.
Introduction:
The API 20F Bolting ASTM A453 Gr.660 Hex Nut and Stud Bolt is a highly specialised piece of hardware designed to meet the stringent requirements of heavy-duty industrial applications. Crafted to comply with international standards set by ISO, DIN, and API, it epitomises durability, reliability and precision, making it an indispensable choice in various engineering projects. In this comprehensive review, we provide a detailed analysis of the features, benefits and applications of this industry-grade fastener, highlighting its competitive positioning in the market.
Specifications:
The ASTM A453 material with the grade designation 660 is characterised by its exceptional tensile strength, yield strength and creep resistance. This makes it the ideal solution for applications involving high-temperature and aggressive environment exposure. The hex nut and bolt are also compliant with 20F Bolting specifications set by ISO/DIN/API, ensuring a broad applicability scope across multiple industries.
Product Recommendation
Design and Build:
Our ISO 20F Bolting ASTM A453 Gr.660 Hex Nut and Stud Bolt is meticulously engineered to optimise a delicate balance of size, strength, and weight. The product is manufactured using a rigorous process that adheres to the highest standards of quality and consistency, ensuring each bolt offers the highest grade of performance. The grade 660 material used in the construction of the bolt is highly corrosion-resistant. It features a formidable chromium-nickel-iron alloy, with additions of titanium and beryllium, making it ideally suited to demanding applications.
Strength and Durability:
These bolts are renowned for their exceptional strength and longevity, and are able to withstand pressures of up to 700 degrees Celsius. The durability of these products is further enhanced by their resistance to both oxidation and carburization at high temperatures. This makes them perfect for use in harsh environments. The robust M42 size enhances the bolt's ability to handle intense pressure and load, preventing any form of distortion or damage.
PRODUCT QUALITY CERTIFICATE
1.DESCRIPTION
| DESIGNATION: Full thread bolt |
MATERIAL GRADE:A453 Gr.660 Cl.A | MATERIAL MARK:660A SN | ||||||||||||||||||||||||||||||
| STANDARD:ISO 261 | SPECIFIATIONS:ASTM A453/A453M-2017 | HEAT NO:9D70097 | ||||||||||||||||||||||||||||||
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Specs
|
M20*160 | M20*150 | PO. Item | 20# 33# | ||||||||||||||||||||||||||||
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Qty/PCS
|
16 | 44 | ||||||||||||||||||||||||||||||
| 2. %CHEMICAL COMPOSITION | ||||||||||||||||||||||||||||||||
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elements
|
C | Si | Mn | P | S | Cr | Ni | Mo | Al | Ti | B | V | ||||||||||||||||||||
|
norm values
|
≤0.08 | ≤1.00 | ≤2.00 | ≤0.040 | ≤0.030 | 13.5-16.0 | 24-27 | 1.0-1.5 | ≤0.35 | 1.9-2.35 | 0.001-0.010 | 0.10-0.50 | ||||||||||||||||||||
|
Actual
|
0.040 | 0.27 | 1.22 | 0.018 | 0.001 | 14.59 | 26.45 | 1.13 | 0.12 | 1.88 | 0.005 | 0.31 | ||||||||||||||||||||
| 3. MECHANICAL PROPERTY | ||||||||||||||||||||||||||||||||
INSPECT. ITEM |
Tensile Strength (Mpa) | Yield Strength (Mpa) | Elongation % | Reduction % | -196ºC impact test J |
Hardness HB |
||||||||||||||||||||||||||
| Spec | ≥895 | ≥585 | ≥15% | ≥18% | - | HB248-341 | ||||||||||||||||||||||||||
| Actual | 1047 | 617 | 31.5 | 58 | 71.25 73.43 75.21 | 310 | ||||||||||||||||||||||||||
| 4. HEAT TREATMENT | ||||||||||||||||||||||||||||||||
|
ºC ºC
METHOD: +970ºC 720ºC
Solid solution + Prescription Solid solution Prescription
MEDIUM: water T T |
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| 5. SURFACE & CLASS | ||||||||||||||||||||||||||||||||
| THREAD CLASS:6g | ||||||||||||||||||||||||||||||||
| DIMENSIONAL AND SURFACE INSPECTION: OK | ||||||||||||||||||||||||||||||||
| APPEARANCE TREATMENT: Color | ||||||||||||||||||||||||||||||||
Testconclusions |
SH/T3404-2013 After Inspection , The quality of this product get the SH/T3404-2013 standard of the pattern and the industry standard. |
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| THE ABOVE MATERIAL IS MANUFACTURED IN ACCORDANCE WITH SPECIFIED SPECIFICATION AND IS SUBJECT TO RANDOM TEST AND INSPECTION.THE CERTIFICATE IS PREPRARED BASED ON THE TEST RESULTS WHICH ARE OBTAINED UNDER THE SUPERVISION BY THE INSPECTOR.THE INSPECTOR IS INDEPENDENT OF THE MANUFACTURER. | ||||||||||||||||||||||||||||||||
Applications:
The bolt is particularly relevant in the petrochemical industry, as well as in heat exchangers, steam generators in nuclear pressurised water reactors, gas turbine engine components and subsea oil and gas extraction tools, to name but a few. The hex nut's universal design allows for compatibility with various assemblies, significantly increasing the product's versatility.
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