Boulon de carrosserie à tête semi-ronde et à col carré en acier inoxydable 304 pour pièces de machin
Connexion : Boulon commun
Style de tête : ronde
Norme : DIN, ANSI, GB, BSW
Le boulon de carrosserie à tête semi-ronde et à col carré en acier inoxydable 304 est idéal pour une utilisation dans les pièces de machines. Son matériau de haute qualité garantit durabilité et résistance à la corrosion, ce qui en fait un choix fiable pour les applications industrielles. La conception de la tête semi-ronde permet une finition lisse et affleurante, tandis que le col carré offre une stabilité et une sécurité accrues lors de la fixation. Ce boulon est un composant polyvalent et essentiel pour l'assemblage ou la réparation de diverses machines, offrant résistance et fiabilité dans ses performances. Avec son ingénierie précise et sa construction robuste, ce boulon de carrosserie répond aux exigences exigeantes des pièces de machines, garantissant une fonctionnalité efficace et durable.
Taille = diamètre du filetage de * longueur du poteau louis
The following specifications are manual measurements in a single batch, and
there is a certain error Unit: mm
304 stainless steel small head carriage screws GB12
| Size | dk/mm | k1/mm | S/mm | k/mm |
| M4 | 9.0 | 2.4 | 4.0 | 2.7 |
| M5 | 10.8 | 2.8 | 5.1 | 3.3 |
| M6 | 11.9 | 2.4 | 5.8 | 3.4 |
| M8 | 16.1 | 3.0 | 7.9 | 4.3 |
| M10 | 19.8 | 3.8 | 9.9 | 5.2 |
| M12 | 24.0 | 5.9 | 11.8 | 7.3 |
| chemical composition ，%,max | |||||||||||
| type | C | Si | Mn | P | S | Cr | Mo | Ni | Cu | Mark | |
| 304-A2 | ≤ 0.07 | ≤ 1.0 | ≤ 2.0 | ≤ 0.035 | ≤ 0.03 | 17 19 | 8 11 | Processing hardening rate is moderate, suitable for general cold addition, working and pumping, cold processing performance is good, generally used in hexagonal screws, nuts and gasket products | |||
| 316-A4 | ≤ 0.08 | ≤ 1C | ≤ 2.0 | ≤ 0.035 | ≤ 0.03 | 17 19 | 18 2.5 | 11 14 | H | Molybdenum, corrosion resistance is stronger than 304, especially suitable for seawater and chemical media, more corrosion resistance value and hole corrosion resistance | |
| Note: 1) if the nickel content is less than 8%, the minimum content of manganese must be 5% 2) nickel content is greater than 8%, the minimum content of copper 3) chromium content is less than 17%, the minimum content of nickel is 12% 4) for the maximum carbon content of 0.03% austenitic stainless steel, nitrogen content up to 0.2 5) for products with large diameter, to achieve the specified mechanical properties, in the manufacturer specification, but for martensite steel shall not exceed 0.12% | |||||||||||
| mechanical behavior [character；property] | |||||||||||
| Type | Grade | Performance level | Screw diameter | tensile strength mpa/mmz | The non-column elongation shall be mpa/mm₂ | The elongation after breaking mpa/mm | |||||
| austenite | A2.A4 | 50 | ≤39 | 500 | 210 | 0.6d | |||||
| 70 | ≤24 | 700 | 450 | 0.4d | |||||||
| 80 | ≤24 | 800 | 600 | 0.3d | |||||||
| 你问我答 | |||||||||||
| Question 1 | 1. Why is stainless steel also magnetic?304 stainless steel belongs to austenitic stainless steel, austenite in the cold processing process has some or a small conversion into martensite, martensite is magnetic, so 304 stainless steel is no magnetic or micromagnetic. Specific can baidu query 304 stainless steel why contain magnetic property. | ||||||||||
| Question 2 | 2. How to identify the authentic 304 stainless steel products?① Support 304 stainless steel special testing medicine test, if do not change color for authentic 304 stainless steel.② Support for chemical composition analysis and spectral analysis.③ Support the salt spray test to simulate the actual use environment. | ||||||||||
| Question 3 | 3. What are the most commonly used stainless steel?① 201 stainless steel, suitable for use in a dry environment, when water is easy to water rust.② 304 stainless steel, outdoor or humid environment, corrosion resistance and strong acid resistance.③ 316 stainless steel, with molybdenum, more corrosion resistance and pore corrosion resistance, especially suitable for seawater and chemical media. | ||||||||||
| Since 2003, the world stainless steel raw materials rise, the domestic market appeared a kind of "low nickel" cheap economic stainless steel (containing nickel Ni1.5-4.5%) austenitic stainless steel, the price of 304 stainless steel lower about 45% -40%, corrosion, rust prevention ability is relatively low, Azhuo products are all austenitic 304 or 316 stainless steel products. | |||||||||||
standard
DIN603
Material
304 stainless steel
Rust resistance for use
Surface treatment whitening
Test
1. Size detection
2. Mechanical performance test
3. Corrosion resistance test
4. Thread quality inspection
5. Material composition analysis
6. Environmental adaptability test
7. Identification and packaging testing
8. Abrasion and fatigue test
9. Surface treatment quality inspection
10. Disassembly and reusability test
Vis à tête cylindrique à petite tête en acier inoxydable 304 GB12
cable tray special 316 carriage screws M6*20
Flange nuts
Personnalisation
Logo personnalisé
Commande min. : 100 000
Emballage personnalisé
Commande min. : 100 000
Personnalisation graphique
Commande min. : 100 000
Pour plus de détails sur la personnalisation, contactez le fournisseur
Multispecialty supplier1 yrLocated in CNÉvaluation du magasin
-
Taux de livraison dans les délais
100,0 %
Temps de réponse
≤ 4 h
Chiffre d'affaires en ligne
-
Principaux marchés
Amérique du Nord, Europe de l'Ouest, Océanie
Services
Personnalisation mineure
Personnalisation basée sur la conception
Contrôle qualité
Identification de la traçabilité des matières premières
Inspecteurs AQ/CQ (1)
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