JIS G3444
Nkọwa dị mkpirikpi:
Nkọwa ngwaahịa
Mkpado ngwaahịa
JIS G3444GburugburuỌkụ ígwè
Dayameta dị n'èzí (mm): 21.7-1016.0
Ọkpụrụkpụ mgbidi (mm): 2.0-22
Ogologo: 1m-12m ma ọ bụ ahaziri ogologo
Ngwọta dị n'elu: nwa, eserese, galvanized, wdg.
Akwụsị: larịị ma ọ bụ eri na njedebe abụọ ahụ nwere okpu plastik otu njedebe otu njikọ njikọ
Nkwakọ ngwaahịa: na ngwugwu ma ọ bụ kechie ya na akwa pvc na-enweghị mmiri.
Mbupu: nnukwu ma ọ bụ ibu n'ime akpa.
Ịkwụ ụgwọ: T / T, L / C, Western Union
Ngwa: Ọdịdị, mmiri, gas na na.
Isiokwu 1. Chemical mejupụtara
| Nkeji:% | |||||
| Akara ọkwa | C | Si | Mn | P | S |
| STK290 | - | - | - | 0.050 kacha. | 0.050 kacha. |
| STK400 | 0.25 kacha. | - | - | 0.040 kacha. | 0.040 kacha. |
| STK490 | 0.18 kacha. | 0.55 kacha. | 1.65 kacha. | 0.035 kacha. | 0.035 kacha. |
| STK500 | 0.24 kacha. | 0.35 kacha. | 0.30 ruo 1.30 | 0.040 kacha. | 0.040 kacha. |
| STK540 | 0.23 kacha. | 0.55 kacha. | 1.50 kacha. | 0.040 kacha. | 0.040 kacha. |
| ndetu a) Ọ bụrụ na ọ dị mkpa, enwere ike ịgbakwunye ihe ndị ọzọ na-abụghị nke akọwapụtara na tebụl a. b) Maka tube nke ọkwa STK540 gafere 12.5 mm na ọkpụrụkpụ mgbidi, ihe mejupụtara kemịkalụ nwere ike dabere na nkwekọrịta n'etiti onye zụrụ ya na onye nrụpụta. | |||||
Tebụl 2. Mechanical Properties
| Akara ọkwa | Ike ntanye N/mm² | Ebe mpụta nke mgbakasị mgbaka N/mm² | Ike tensile na mpaghara weld N/mm² | Na-atọ ụtọ | Bendability | |
| Anya n'etiti efere (H) | Ehulata akụkụ | N'ime radius | ||||
| Etinyere n'èzí dayameta | ||||||
| Dayameta niile dị n'èzí | Dayameta niile dị n'èzí | Dayameta niile dị n'èzí | Dayameta niile dị n'èzí | 50 mm max. | ||
| STK290 | 290 min. | - | 290 min. | 2/3 D | 90° | 6 D |
| STK400 | 400 min. | 235 min. | 400 min. | 2/3 D | 90° | 6 D |
| STK490 | 490 min. | 315 min. | 490 min. | 7/8 D | 90° | 6 D |
| STK800 | 500 min. | 355 min. | 500 min. | 7/8 D | 90° | 6 D |
| STK540 | 540 min. | 390 min. | 540 min. | 7/8 D | 90° | 6 D |
| IHE 1 D nke tebụl a bụ n'èzí dayameta nke tubes. IHE 2 1 Nmm²=1MPa | ||||||
