Size And Weight Of Steel

Steel length dimensions

Steel length dimensions are the most basic dimensions of all kinds of steel, referring to the length, width, height, diameter, radius, inner diameter, outer diameter, and wall thickness of the steel. The legal unit of measurement for the length of steel is the meter (m), centimeter (cm), millimeter (mm). In the current custom, it is also expressed in inches (″), but it is not a legal unit of measurement.

1. Range sizing of steel is an effective measure to save material. Range sizing is the length or length by width not less than a certain size, or length, length by width from how much to how much the size of the delivery range. The production unit can produce and deliver according to this size requirement.

2 . Indefinite length (usual length) Where the product size (length or width), in the standard range, and does not require a fixed-size called indefinite length. Indefinite length is also called the usual length (through the length). Delivery of metal materials by indeterminate length as long as the delivery within the specified length can be. For example, not more than 25mm of ordinary round steel, the usual length of 4 -10m, then the length of the round steel within this range can be delivered.

3. cut to a fixed size according to the requirements of the order is called fixed length. According to the fixed-length delivery, the metal material delivered must have the length specified by the demander in the order contract. For example, if it is stated in the contract that the delivery is 5m in length, the delivered materials must be 5m long, and those shorter than 5m or longer than 5m are not qualified. However, in practice, the delivery cannot be 5m long, so it is stipulated that positive deviation is allowed, but the negative deviation is not allowed.

Stainless-Steel-Sheets(1)

4. The fixed size cut into whole multiples according to the order requirements is called multiples. In the case of delivery by multiple lengths, the length of the metal material delivered must be an integer multiple of the length specified by the demander in the order contract (called single multiple) (plus the saw cut). For example, the demand side in the order contract requires a single-fold length of 2m, then, cut into a double-fold length that is 4m, cut into a 3-fold length that is 6m, and respectively, plus one or two saw kerf amount. The amount of kerf is specified in the standard.

When the delivery of the double-fold, the only positive deviation is allowed, and negative deviation is not allowed. 5.

5. short length less than the lower limit of the standard variable length, but not less than the shortest length allowed is called short. For example, the standard for water and gas transmission steel pipe, allowing 10% of each batch (by the number of roots) 2-4m long-short steel pipe. 4m is the lower limit of the indeterminate length, the shortest length allowed for 2m.

6. narrow width is less than the lower limit of the standard indeterminate width, but not less than the narrowest width allowed is called narrow.

According to the narrow delivery, one must pay attention to the standard provisions of the narrow ratio and the narrowest foot.