Industrial metal background

2507 Super Duplex Stainless Steel Tube Supplier | UNS S32750 / 1.4410

不锈钢管材
2507 super duplex stainless steel tube (UNS S32750 / EN 1.4410 / F53) supplied by Shanghai Vertex Alloy Co., Ltd — seamless and welded tube to ASTM A789/A790 with PREN ≥41, critical pitting temperature above 50°C, yield strength ≥550 MPa and chloride SCC resistance for seawater, offshore oil & gas, subsea and desalination applications.
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产品描述

上海顶点合金有限公司(Shanghai Vertex Alloy Co., Ltd,简称 Vertex Alloy)供应 2507 超级双相不锈钢管(UNS S32750 / EN 1.4410 X2CrNiMoN25-7-4 / 锻件级 F53,国标对应 022Cr25Ni7Mo4N / S25073)。该合金含约 25% 铬、7% 镍、4% 钼、0.27% 氮,奥氏体-铁素体约各半的双相组织使其兼具高强度与高耐蚀性:PREN ≥41、临界点蚀温度 >50°C、临界缝隙腐蚀温度 ≥35°C,抗氯化物应力腐蚀性能优异;屈服强度 ≥550 MPa,接近 316L 的两倍,可实现薄壁轻量化高压管道设计。产品按 ASTM A789/A790(ASME SA789/SA790)、EN 10216-5/10217-7 供应无缝管 6–219mm、焊管至 813mm,固溶态(1040–1120°C 水淬)交货,符合 NACE MR0175/ISO 15156-3 酸性服役要求,附 EN 10204 3.1 材质证明。广泛用于海洋平台海水/消防系统、水下油气输送管、SWRO 海水淡化高压管线及含氯化工换热器。

尺寸范围

  • 6–219 mm (seamless); up to 813 mm (welded)

牌号标准

标准体系数值
UNSS32750
Common nameAlloy 2507 / SAF 2507 (Outokumpu-Sandvik trade designation)
ASTM / ASMEA789 / A790 tube & pipe; A182 F53 forgings; A240 plate; A276/A479 bar
EN / Werkstoff1.4410 / X2CrNiMoN25-7-4
🇯🇵 JISSUS 32750

化学成分

元素数值
Cr24.0–26.0
Ni6.0–8.0
Mo3.0–5.0
N0.24–0.32
C≤ 0.030
Mn≤ 1.20
Si≤ 0.80
P≤ 0.035
S≤ 0.020
Cu≤ 0.50
FeBalance

机械性能

性能数值
Tensile Strength≥ 800 MPa (116 ksi)
0.2% Yield Strength≥ 550 MPa (80 ksi)
Elongation≥ 15% (ASTM min); typically ≥ 25%
Hardness≤ 310 HBW / ≤ 32 HRC
Impact Toughness (RT)≥ 80 J
Impact Toughness (−46°C)45 J avg / 35 J min
PREN≥ 41 (typ. 41–43)
Critical Pitting Temperature> 50°C (ASTM G48)
Critical Crevice Temperature≥ 35°C (ASTM G48)

物理性能

性能单位数值
Density-7.81 g/cm³

应用场景

  • Offshore Oil & Gas
  • Seawater Systems
  • Desalination
  • Chemical & Petrochemical
  • Pollution Control
  • Pulp & Paper / Geothermal
  • Marine & Shipbuilding