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雙相鋼(肥粒鐵和奧氏體相)不鏽鋼無縫管

雙相鋼同時擁有鐵素體和奧氏體結構,具有比普通奧氏體合金更為優異的力學性能和更加良好的抗應力腐蝕和抗縫隙腐蝕能力以及比鐵素體不銹鋼更為光滑的表面,尤其是在低溫狀態下。 雙相鋼的抗腐蝕性能主要取決於其化學成分,尤其是其鉻,鉬和鎳的含量。


UNS

JIS

En

DIN

S31803

QS2205

1.4462

X2CrNiMoN22-5-3

S32205

QS2205

1.4462

X2CrNiMoN22-5-3

S32304

 

 

 

S32750   1.4410 X2CrNiMoN25-7-4
S32760      

Note: PREN=Cr%+3.3×Mo%+16×N%

UNS

抗拉強度 
Min, Mpa

屈服強度 
Min, Mpa

延伸率 in 2INCH.
Or 50mm Min, %

硬度 Max,
HRC

S31803

620

450

25

30

S32205

655

485

25

30

S32304

690

450

25

30

S32750 800 550 25 32
S32760 750 550 25 32
Note: a represent OD equal to 1 INCH or Less
 

ASTM A789/ASME SA789 Seamless and welded ferritic/austenitic stainless steel tubing for general service
ASTM A790/ASME SA790 Seamless and welded ferritic/austenitic stainless steel pipe
ASTM A312/ASME SA312 Seamless and welded austenitic stainless steel pipes
ASTM A240 Standard Specification for Chromium and Chromium-Nickel Stainless Steel Plate,
Sheet, and Strip for Pressure Vessels and for General Applications
EN10216-5 Seamless steel tubes for pressure purposes - stainless steel tubes
DIN17456 General purpose seamless circular stainless steel tubes - technical delivery conditions
DIN17458 Seamless circular austenitic stainless steel tubes subject to special requirements –
technical delivery conditions
JIS G3459 Stainless steel pipes
JIS G3463 Stainless steel boiler and heat-exchanger tubes
GOST 9941 Seamless cold and warm deformed tubes of corrosion-resistant steel - specifications

 
 
1.100% PMI檢測/SPECTRO 化學成分分析
2.100%尺寸檢驗&100%表面檢測
3.拉伸實驗, 擴口實驗(無縫不鏽鋼管),卷邊實驗(焊接不鏽鋼管),硬度試驗,反向壓扁實驗(焊接不鏽鋼管)
4. 100%水壓實驗/100%無損檢測

注意: 所有檢測都需根據標準和測試結果提供檢測報告

 
1.直線度測試
2.粗糙度實驗
3.晶相實驗
4.晶間腐蝕實驗
5.低溫衝擊實驗
 

1.材質單(根據EN10204/3.1或者EN10204 3.2要求提供材料檢測證書)
2.原材料檢測證書
3.根據訂單和標準提供所有檢測報告
4.熱處理報告
5.裝運前之裝運通知
6 .質量保證函

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