# Temperature Indicator Pencil, Yellow | 400 \u00b0C<\/p>\n
**Part Number:** 311064<\/p>\n
## Product Description<\/p>\n
The Wiel\u00e4nder+Schill temperature indicator pencils are devices with precisely calibrated melting points, essential for the reliable monitoring of surface temperature during various industrial processes. This yellow colored indicator pencil is specifically intended for determining the temperature point of **400 \u00b0C**.<\/p>\n
These temperature indicators are crucial aids in welding and metalworking technologies, as well as heat treatment processes. The marking becomes clearly visible when the surface reaches the pencil's calibrated melting point: the mark melts (flows out), visually confirming that the desired temperature has been reached.<\/p>\n
### Key Features and Benefits<\/p>\n
* **Precise Temperature Monitoring:** The melting point of the marking substance is precisely calibrated to 400 \u00b0C.
\n* **Excellent Accuracy:** Compared to the nominal temperature, there is only a **+\/- 1 %** deviation in measurement accuracy. This strict tolerance ensures process quality assurance.
\n* **Visual Feedback:** The melting of the mark provides immediate, unambiguous, and easily detectable visual signaling that the critical temperature has been reached.
\n* **Application Versatility:** Ideal for numerous heat treatment and metalworking operations where strict control of the surface temperature is essential.
\n* **Simple Usage:** The surface of the workpiece must be marked with the pencil before or during heating. The method is most effective on smooth surfaces.<\/p>\n
### Application Areas<\/p>\n
This 400 \u00b0C temperature indicator pencil is ideal for determining the surface temperature in the following areas:<\/p>\n
* **Welding & Metalworking:** Checking the temperature requirements before or after welding seams.
\n* **Preheating:** Ensuring the material reaches the minimum required temperature for welding or machining.
\n* **Intermediate Storage:** Monitoring that materials are kept at the appropriate temperature between manufacturing phases.
\n* **Heat Treatment after Welding:** Precise adherence to critical post-treatment temperatures to reduce stress and preserve material quality.
\n* **Soft Annealing:** Confirmation of the optimal temperature for the soft annealing process.
\n* **Stress Relief Annealing:** Monitoring the temperature range required to eliminate internal stresses.<\/p>\n
## Technical Data<\/p>\n
The physical and performance characteristics of the product are as follows:<\/p>\n
| Property | Value | Comment |
\n| :— | :— | :— |
\n| **Product Type** | Temperature Indicator Pencil | Marking device with calibrated melting point |
\n| **Nominal Temperature** | 400 \u00b0C | The melting point of the mark |
\n| **Color** | Yellow | Color code of the product |
\n| **Part Number** | 311064 | Factory identification |
\n| **Accuracy** | +\/- 1 % | Relative to the nominal temperature |
\n| **Application Surface** | Smooth surfaces | For best results |
\n| **Length** | 137 mm | Total length of the pencil |
\n| **Width** | 12 mm | Diameter\/thickness of the pencil |
\n| **Height** | 12 mm | Diameter\/thickness of the pencil |<\/p>\n
## User Guide<\/p>\n
The use of the temperature indicating crayon is very simple, but for the best results, follow the steps below:<\/p>\n
1. **Preparation:** Ensure the surface to be machined is clean and smooth. Marking only works reliably on smooth surfaces.
\n2. **Indication:** Apply the yellow indicator to the area of the workpiece where you want to check the temperature. Apply the indicator before or during the heating process.
\n3. **Heating:** Start heating the workpiece according to the desired procedure.
\n4. **Indication:** Observe the applied indicator. When the surface temperature reaches 400 \u00b0C, the indicator will visually melt and flow. This signal confirms that the critical temperature has reached the target value.<\/p>\n
This method offers a fast, cost-effective, and reliable alternative to electronic thermometers when quick, local temperature monitoring is needed during the manufacturing process.<\/p>\n
## Related Products (Similar Items)<\/p>\n
In addition to the 400 \u00b0C indicator, the product family covers other temperature ranges, ensuring full-spectrum temperature monitoring:<\/p>\n
* **Temperature Indicator Pencil, Green | 204 \u00b0C (Item No: 311063):** Ideal for checking lower temperature points, for example, 204 \u00b0C.
\n* **Temperature Indicator Pencil, Blue | 500 \u00b0C (Item No: 311065):** For higher temperature applications, signaling when 500 \u00b0C is reached.
\n* **Temperature Indicator Pencil, Red | 100 \u00b0C (Item No: 311062):** For low-temperature processes, for checking 100 \u00b0C.<\/p>\n
These complementary products allow users to precisely track the temperature at every phase of the entire heat treatment cycle.<\/p>","protected":false},"excerpt":{"rendered":"
Yellow Wiel\u00e4nder+Schill temperature indicator crayon with a melting point of 400 \u00b0C. An indispensable tool for the precise monitoring of temperature.<\/p>","protected":false},"featured_media":378093,"comment_status":"open","ping_status":"closed","template":"","meta":[],"product_brand":[1737],"product_cat":[12998],"product_tag":[],"class_list":{"0":"post-359779","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_brand-wielanderschill","7":"product_cat-egyeb-termekek","9":"first","10":"instock","11":"shipping-taxable","12":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/met-industry.hu\/en\/wp-json\/wp\/v2\/product\/359779","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/met-industry.hu\/en\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/met-industry.hu\/en\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/met-industry.hu\/en\/wp-json\/wp\/v2\/comments?post=359779"}],"version-history":[{"count":1,"href":"https:\/\/met-industry.hu\/en\/wp-json\/wp\/v2\/product\/359779\/revisions"}],"predecessor-version":[{"id":370318,"href":"https:\/\/met-industry.hu\/en\/wp-json\/wp\/v2\/product\/359779\/revisions\/370318"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/met-industry.hu\/en\/wp-json\/wp\/v2\/media\/378093"}],"wp:attachment":[{"href":"https:\/\/met-industry.hu\/en\/wp-json\/wp\/v2\/media?parent=359779"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/met-industry.hu\/en\/wp-json\/wp\/v2\/product_brand?post=359779"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/met-industry.hu\/en\/wp-json\/wp\/v2\/product_cat?post=359779"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/met-industry.hu\/en\/wp-json\/wp\/v2\/product_tag?post=359779"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}