精品视频在线免费看-精品视频在线免费播放-精品视频在线免费-精品视频在线观看一区二区-久久久久久国模大尺度人体

我的購物車
  • R307珠光體耐熱鋼焊條
  • R307珠光體耐熱鋼焊條

R307珠光體耐熱鋼焊條

聯系該企業時請說明您是在《制冷名錄》看到該信息,以獲得更多的信任和更好的服務。
價格:12.00/公斤
進店看看>
河北鑫合合金耐磨焊條廠
  • 聯系人:張先生
  • 點擊獲取聯系方式
  • 地區:河北 邢臺
產品分類
熱銷產品
焊芯直徑 2.5-5.0(mm) 材質 R307珠光體
型號 R307    

R307珠光體耐熱鋼焊條

符合GB E5515-B2
相當AWS  E8015-B2

說明:R307是低氫鈉型藥皮的含Cr1%-Mo0.5%的珠光體耐熱鋼焊條,采用直流反接,可進行全位置焊接,焊件應根據結構特點進行適當的預熱和焊后熱處理。

用途:用于焊接工作溫度在520以下的Cr1%-Mo0.5%耐熱鋼,如鍋爐管道、高壓容器、石油精練設備等,也可用于焊接30CrMoSi鑄鋼件。

熔敷金屬化學成分(%)

化學成分

C

Mn

Si

S

P

Mo

Cr

保證值

0.05~0.12

≤0.90

≤0.60

≤0.035

≤0.035

0.40~0.65

0.80~1.50

熔敷金屬力學性能690 ±15×1h回火處理)

試驗項目

σb(MPa)

σs(MPa)

δ5(%)

Akv1(J)

保證值

≥540

≥440

≥17

≥47(常溫)

一般結果

550~650

≥450

≥18

≥60

熔敷金屬擴散氫含量:≤6.0ml/100g(甘油法)

X射線探傷:

參考電流(DC+)

焊條直徑(mm)

φ2.0

φ2.5

φ3.2

φ4.0

φ5.0

焊接電流(A)

40~70

60~90

90~120

130~180

160~210

注意事項:
1.
焊前焊條須經350左右烘焙1h,隨烘隨用。
2.
焊前必須對焊件清除鐵銹、油污、水分等雜質。

好評度
{{GoodNumPer}}%
{{item.LabelTitle}}
  • 全部評價({{AppraiseStatistics.AllNum}})
  • 好評({{AppraiseStatistics.GoodNum}})
  • 中評({{AppraiseStatistics.MidNum}})
  • 差評({{AppraiseStatistics.BadNum}})
  • 曬圖
同類推薦
主站蜘蛛池模板: | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |