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304 stainless steel cross countersunk flat tail self-tapping screws KB flat head Zigong small screws M2.2M2.6M3M4
Link to the original
Price
0.34 $
0.34 $
Article
602376621790
Characteristics
- brand Bairite
- model 304 countersunk head flat tail self-drilling
- Material 304 stainless steel
- Origin Mainland China
- Province Guang Eastern Province
- City Shenzhen
- sort by color Milky white white off-white light gray dark gray gray silver black orange rose red pink red lotus root watermelon red wine red khaki turmeric yellow bright yellow apricot lemon yellow orange light yellow fluorescent yellow gold champagne yellow military green dark green light green green emerald green fluorescent green cyan sky blue peacock blue royal blue light blue dark blue lake blue blue navy blue light purple dark purple purple red violet purple M1.0*3 (100 pieces) M1.0*4 (100 pieces) M1.0*5 (100 pieces) M1.2*3 (100 pieces) M1.2*4 (100 pieces) M1.2*5 (100 pieces) M1.2*6 (100 pieces) M1.4*3 (100 pcs) M1.4*4 (100 pcs) M1.4*5 (100 pcs) M1.4*6 (100 pcs) M1.4*8 (100 pcs) M1.7*3 (100 pcs) M1.7*4 (100 pcs) M1.7*5 (100 pcs) M1.7*6 (100 pcs) M1.7*8 (100 pcs) M1.7*10 (100 pcs) M2*3 (100 pcs) M2*4 (100 pcs) M2*5 (100 pcs) M2*6 (100 pcs) M2*8 (100 pcs)
- Head type Countersunk head
- Standard type National standard
- Category Self-tapping screws
Seller 紧固件市场
- Name 紧固件市场
- Shop 紧固件市场
- Located 广东深圳
- Reviews 0
- Positive 0
- Evaluation of score 4.90
- Evaluation of goods 4.90
- Evaluation of services 4.90
- 100 — 1999 шт 5000$ per piece.
- 2000 — 50119 шт 4000$ per piece.
- 50120+ шт 3000$ per piece.
Available 200 pcs.
0.34
$
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Delivery from China to Ukraine, Uzbekistan, European and African countries
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Photo and product description
| 品牌 | BRT/佰瑞特 | 材质 | 304不锈钢 |
| 名称 | 沉头平尾自攻 | 表面处理 | 未经处理 |
| 标准 | 国标GB/T | 包装说明 | 塑料袋/纸盒 |
| 尺寸 | 例如：M6*30（螺纹直径6mm长度30mm）含头部长度 | ||
最少5个字符
最少5个字符
| 化学成分，%,max | ||||||||||
| 组别 | C | Si | Mn | P | S | Cr | Mo | Ni | Cu | 特性 |
| 304-A2 | 0.1 | 1 | 2 | 0.05 | 0.03 | 15-20 | 8-19 | 4 | 加工硬化率适中，适于一般的冷间加工以及伸抽，冷加工性能较好，普遍用于外六角螺钉、螺母以及垫圈产品 |
|
| 316-A4 | 0.08 | 1 | 2 | 0.045 | 0.03 | 16-18.5 | 2-3 | 10-15 | 1 | 加钼，耐腐蚀能力较304强，特别适用于海水及化学介质，更加的耐腐蚀性及耐孔蚀性。 |
| 注： 1)如镍含量低于8%,则锰的最小含量必须为5% |
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| 机械性能 | |||||||||||
| 类别 | 组别 | 性能等级 | 螺丝直径 | 抗拉强度mpa/mm2 | 规定非比列伸长应为mpa/mm2 | 断后伸长量mpa/mm2 | |||||
| 奥氏体 | A2，A4 | 50 | ≤ 39 |
500 | 210 | 0.6d | |||||
| 70 | ≤ 24 |
700 | 450 | 0.4d | |||||||
| 80 | ≤ 24 |
800 | 600 | 0.3d | |||||||
| 问题1 | 1.不锈钢为什么也会带磁性？304不锈钢属于奥氏体不锈钢，奥氏体在冷加工过程中有部分或少量转化为马氏体，马氏体是带磁性的，所以304不锈钢为无磁性或者微磁性。具体可以百度查询304不锈钢为什么含磁性。 |
| 问题2 | 2.如何识别正宗304不锈钢产品？①支持304不锈钢专用检测药水检测，如果不变色为正宗304不锈钢。 |
| 问题3 | 3.最常用不锈钢有那几种？①201不锈钢，适合在干燥环境中使用，遇水很容易水生锈。 |
| 2003年起，全世界不锈钢原料上涨，国内市场出现一类"低镍"的廉价经济型不锈钢（含镍Ni1.5-4.5%）的奥氏体不锈钢，价格比304不锈钢低约15%-40%，防腐蚀防锈能力相对较低，佰瑞特产品则全为奥氏体304或316不锈钢制品。 |
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