Umumiy mahsulot tavsifi
ASTM A709 ko'priklar uchun strukturaviy po'lat uchun standart spetsifikatsiya - bu ko'priklar qurilishidagi strukturali - qotishmalari va ko'priklar qurilishidagi tarkibiy plitalar sifatida ishlatilgan.
Mavjud o'lchamlar
|
Baho |
Qalinlik |
Kenglik |
Uzunligi |
|---|---|---|---|
|
50 |
0.1875 - 3.00 |
72 - 120 |
240 - 1200 |
|
50T |
0.1875 - 3.00 |
72 - 120 |
240 - 1200 |
|
50F |
0.1875 - 2.50 |
72 - 120 |
240 - 1200 |
|
50F |
2.51 - 3.00 1) |
72 - 120 |
240 - 1200 |
Mexanik xususiyatlar
|
Baho |
Qalinlik |
Kuch berish kuchi1) |
Mustahkamlik chegarasi |
2-ga cho'zish2) |
8-daqiqada cho'zish2) |
|---|---|---|---|---|---|
|
50 |
0.1875 - 3.00 |
50 |
65 |
21 |
18 |
|
50T |
0.1875 - 3.00 |
50 |
65 |
21 |
18 |
|
50F |
0.1875 - 3.00 |
50 |
65 |
21 |
18 |
Ta'sir xususiyatlari
|
Baho |
Qalinlik |
Min Longralatmas Energiya1) |
Min libosinal individual qiymati1) |
1-zona sinov tempi |
2-zona sinov tempi |
3-zona sinov tempi |
|---|---|---|---|---|---|---|
|
50T |
0.1875 - 2.00 |
15 |
10 |
70 oF |
40 oF |
10 oF |
|
50T |
2.01 - 3.00 |
20 |
15 |
70 oF |
40 oF |
10 oF |
|
50F |
0.1875 - 2.00 |
25 |
20 |
70 oF |
40 oF |
10 oF |
|
50F |
2.01 - 3.00 |
30 |
24 |
70 oF |
40 oF |
10 oF |
Kimyoviy tarkibi
|
Tur |
C 1) |
Mn 1) |
P |
S |
Si 2) |
Ku 3) |
V |
Kb |
V + NB |
|---|---|---|---|---|---|---|---|---|---|
|
1 |
0.23 |
1.35 |
0.030 |
0.030 |
0.40 |
0.20 |
- |
0.005 - 0.05 |
- |
|
2 |
0.23 |
1.35 |
0.030 |
0.030 |
0.40 |
0.20 |
0.01 - 0.15 |
- |
- |
|
3 |
0.23 |
1.35 |
0.030 |
0.030 |
0.40 |
0.20 |
0.01 - 0.15 |
0.005 - 0.05 |
0.02 - 0.15 |
1)3/8 dyuymdan oshgan plitalarga mish-sog ', minimal 0,80%; 3/8 dyuym uchun minimal 0,5,50% va qalinligida kamroq. Uglerod koeffitsientiga 2 dan 1 gacha bo'lgani uchun kamida 2 dan kam bo'lmasligi kerak. Belgilangan uglerod maksimal darajada 0,06% miqdorining pasayishi, belgilangan maksimal maksimal 1,60% gacha o'sishi mumkin.
2)Plitalar uchun 1,50 dyuymdan ko'proq, Silcon oralig'i 0,15% 0,40 ga teng.
3)Mis belgisi minimal tarkibga ega bo'lishi kerak 0,20%.
Bardoshlik
Qalinlik, kenglik va uzunlikdagi bardoshlik ASM A6 talablariga muvofiq. Lim - uchun yuk ko'tarish uchun qo'shimcha mahsulot, A6 Bag'ruzivlik A6 Bardoshlik.
