Page 35 - 卡麦隆-燃气全焊接球阀

www.camvalve.com 抗硫阀门 NACE Resist Ssc Valves Kamailong Valve
NACE MR 0175
对于应用于四种气体硫化氢或其他烃类流体介质，
抗硫化应力裂纹阀门
的材料设计选用
需对阀门的材料组件进行了特殊处理，使硬度控
制在NACE MR 0175标准规定值范围内。卡麦隆 抗硫应力裂纹的阀门典型材料推荐 55
56
Focus on Manufacturing Welded Ball Valve 度要求和设计标准的要求有差异时，由用户进行 适用于包括硫化氢的碳氢化合物的工作介质环境
抗硫铸钢阀门的典型材料配置如下表。NACE的硬

选择确定。
RESIST SSC (SULFUR STRESS CRACK) MATERIAL RECOMMENDED FOR VALVES
APPLICABLE TO SERVICE MEDIUM INCLUDING CARBON-
HYDRIDE COMPOUND CONTAINING HZ5

本产品目录内的所有钢制阀门均可以按照NACE MR 0175
材料Material NACE
零部件名称
Kamailong Valve 规范的要求，应用于高含硫的石油和天然气工作环境: NO. Part Name 硬度值
a)所有抗硫阀门全部符合G日或AP!标准要求，除非有特殊 GB ASTM Hardness
要求，所有部件材料的最高表面硬度值不超过日RC22o A105
NACE Resist Ssc Valves b).壳体采用GB/丁12228-A105和AS丁M A 105的锻钢材 1 阀体Body GB/T 12228-A105

质的最大碳当量不超过0.43
2 阀盖Bonnet GB/T 12228-A105 A105
g).所有抗硫阀门应安装有具有可追溯性和，"NACE MR 0175'. (237 HB)
HRC 22
NACE MR 0175 标识的符合性认证的标志牌。 3 阀座Seat Ring A105+ENP A105+ENP

All cast steel valves in this catalogue can be manufactured
accordingto specification NACE MR 0175 and applicable to 4 球体Ball A105+ENP A105+ENP
抗硫化应力裂纹阀门 service medium as oiland gas containing sulfur. 5 阀杆Stem 17一4 PH 17一4PH HRC 22
a). All NACE valves meet GB&API standard. Except specified
的材料设计选用 otherwise,maximum hardness value on surface of all parts is (237 HB)
not more than HRC 22
b). Max. carbon content of forged steel (GB/T 12228-A105& 规格除上述表中所列典型NACE抗硫材料以外，材料也均可按用
ASTM A105)used for valve body is not more than 0.43 } . 户的要求进行选择和调整。
Kamailong Valve 55 56 G). All sulfur一resistant valves shall be equipped with certificated Except for typical NACE sulfur-resistant material listed in above table,
marks"NACE MR 0175" and nameplate for traceability. material can be selected and adjusted by customer's option

ANTI-SULFUR VALVE

When applied to four types of gas, including hydrogen
sulfide, and other hydrocarbon fluid medium, the material
and components of the valve shall undertake special
treatment so that the hardness id maintained within the
value specified in NACE MR 0175 standard. The typical
material configuration for anti-sulfur cast steel valve has
been shown in the table below. In the event that the NACE
hardness requirement is in conflict with design standard,
users are entitled to make a choice.

图1;碳钢材料的抗硫化应力裂纹分析
Fig.1 sulfur stress cracking resistance analysis of carbon steel