不锈钢U型弯管
U 形或 U 形弯管使最终用户可以更自由地设计比直管更紧凑的系统. 这 不锈钢U型弯管 非常适合涉及热量和高压水平的应用,因为它经常用于热交换器应用. 膨胀节将用于在温度极高的环境中连接直管. 如果直管,对应用来说会很糟糕’ 未考虑热膨胀.
不添加, 使用膨胀节的成本会增加应用程序的价格. 然而, 连接管子和外壳时, 一个 不锈钢U型弯管 用于热交换器允许在不增加或增加成本的情况下对组件进行热膨胀. 结果, 雇用 不锈钢U型管 不仅有效而且经济. 尽管组件的设计对其预期用途至关重要, 在生产不锈钢U型管时选择合适的牌号也是一个关键因素. 不锈钢在当今市场上有多种等级.
任何等级 不锈钢管U型弯管 具有几乎无穷无尽的应用范围, 来自价格实惠的等级合金 304 到航海级合金 316. 这 Ss 316ti U 型弯管, 其化学成分中含有钛, 是最有吸引力的合金之一,因为应用的耐用性也出现在视野中. 特别, 该合金产生碳化钛而不是碳化物沉淀物, 对焊接部件不致命, 这提高了 不锈钢焊接U型管.
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U 形或 U 形弯管使最终用户可以更自由地设计比直管更紧凑的系统. 这 不锈钢U型弯管 非常适合涉及热量和高压水平的应用,因为它经常用于热交换器应用. 膨胀节将用于在温度极高的环境中连接直管. 如果直管,对应用来说会很糟糕’ 未考虑热膨胀.
不添加, 使用膨胀节的成本会增加应用程序的价格. 然而, 连接管子和外壳时, 一个 不锈钢U型弯管 用于热交换器允许在不增加或增加成本的情况下对组件进行热膨胀. 结果, 雇用 不锈钢U型管 不仅有效而且经济. 尽管组件的设计对其预期用途至关重要, 在生产不锈钢U型管时选择合适的牌号也是一个关键因素. 不锈钢在当今市场上有多种等级.
任何等级 不锈钢管U型弯管 具有几乎无穷无尽的应用范围, 来自价格实惠的等级合金 304 到航海级合金 316. 这 Ss 316ti U 型弯管, 其化学成分中含有钛, 是最有吸引力的合金之一,因为应用的耐用性也出现在视野中. 特别, 该合金产生碳化钛而不是碳化物沉淀物, 对焊接部件不致命, 这提高了 不锈钢焊接U型管.
Production process:
straight pipe – bending before 100% flaw detection – reliable bending machine and precision bending mould – bending after the U-shaped part of the electric heating stress relief annealing – bending after 100% water pressure
STAINLESS STEEL U TUBE TOLERANCES:
Dimensional tolerances U tubes acc. to TEMA R.C.B.
1) Length of straight part -0/+5 毫米
Flattening (also called “ovality”) at the bend shall not exceed 10% of the nominal tube outside diameter.
Wall thickness in bending part acc. to TEMA R.C.B 2.31
2) Minimum tube wall thickness in the bend part (T min)T(最小) ≥ (SW × (2×R + D))/( 2× (R+D)
where: SW is smallest wall thickness
D Nominal outside diameter
R radius
3)Radius tolerance
1. for R 100 毫米 +/- 3 毫米
2. for R ≥ 100 毫米 +/- 5 毫米
3. Straightness tolerance max. 1,5 mm per 1 m
U-Tube ends: plain, verticallycut to the tube axis
包装:
Packed in ply wooden box wrapped in plastic, and suitably protected for sea-worthily delivery or as requested.
Stainless steel U bent Tube standard and material grade:
ASTM A213 TP304/304L TP316/316L TP310S Stainless steel U Tube bundles forBoiler, 冷凝 器, 过热器,热交换器, 冷却器/中间冷却器, 式 制冷机
ASTM/ASME A/SA268 TP405, TP409, TP410, TP430,TP439, TP444 Ferritic and Martensitic Stainless Steel Seamless U Tube Tube bundles
ASTM/ASME A/SA213 TP304/304L,TP304H, TP316/316L, TP347/347H,TP316Ti, TP321/321H, TP310S Seamless Austenitic Stainless Steel U Tubes Tube bundles
ASTM A249 TP304/304L,TP304H, TP316/316L, TP347/347H,TP316Ti, TP321/321H, TP310S Standard Specification for Welded Austenitic Steel Boiler, Superheater, Heat-Exchanger, and Condenser U Tubes bundles forBoiler, 冷凝 器, 过热器,热交换器, 冷却器/中间冷却器, 式 制冷机.
ASTM A269 TP304/304L TP316/316L Stainless Steel U Bend Heat Exchanger Tube, Boiler Tubing Tube bundles
Monel400 U tube Tube bundles UNS N06600,625, Incoloy800/800H 825 U bend tube Tube bundles, hastelloy U bent tube Tube bundles
Duplex UNS S31803/32205 UNS S32750 U bent tube, super duplex U tube for Heat Exchanger Tube Boiler Condensers Super Heaters Coolers/Inter-coolers Chiller.
类型 | 年级 | 年级 | Chemical Component % | ||||||||||
C | 铬 | 镍 | 锰 | P | S | 莫 | 四 | 铜 | N | 其他 | |||
Austenitic | 201 | SUS201 | ≤0.15 | 16.00-18.00 | 3.50-5.50 | 5.50-7.50 | ≤0.060 | ≤0.030 | – | ≤1.00 | – | ≤0.25 | – |
304 | 1.4301 | ≤0.07 | 17.00-19.00 | 8.00-10.00 | ≤2.00 | ≤0.045 | ≤0.030 | – | ≤1.00 | – | – | – | |
304L | 1.4307 | ≤0.030 | 18.00-20.00 | 8.00-10.00 | ≤2.00 | ≤0.045 | ≤0.030 | – | ≤1.00 | – | – | – | |
304H | 1.4948 | 0.04-0.10 | 18.00-20.00 | 8.00-10.00 | ≤2.00 | ≤0.045 | ≤0.030 | – | ≤1.00 | – | – | – | |
309 | 1.4828 | ≤0.20 | 22.00-24.00 | 12.00-15.00 | ≤2.00 | ≤0.045 | ≤0.030 | – | ≤1.00 | – | – | – | |
309S | * | ≤0.08 | 22.00-24.00 | 12.00-15.00 | ≤2.00 | ≤0.045 | ≤0.030 | – | ≤1.00 | – | – | – | |
310 | 1.4842 | ≤0.25 | 24.00-26.00 | 19.00-22.00 | ≤2.00 | ≤0.045 | ≤0.030 | – | ≤1.50 | – | – | – | |
310S | * | ≤0.08 | 24.00-26.00 | 19.00-22.00 | ≤2.00 | ≤0.045 | ≤0.030 | – | ≤1.50 | – | – | – | |
314 | 1.4841 | ≤0.25 | 23.00-26.00 | 19.00-22.00 | ≤2.00 | ≤0.045 | ≤0.030 | – | 1.50-3.00 | – | – | – | |
316 | 1.4401 | ≤0.08 | 16.00-18.50 | 10.00-14.00 | ≤2.00 | ≤0.045 | ≤0.030 | 2.00-3.00 | ≤1.00 | – | – | – | |
316L | 1.4404 | ≤0.030 | 16.00-18.00 | 10.00-14.00 | ≤2.00 | ≤0.045 | ≤0.030 | 2.00-3.00 | ≤1.00 | – | – | – | |
316钛 | 1.4571 | ≤0.08 | 16.00-18.00 | 10.00-14.00 | ≤2.00 | ≤0.045 | ≤0.030 | 2.00-3.00 | ≤1.00 | – | 0.1 | Ti5(C+N)~0.70 | |
317 | * | ≤0.08 | 18.00-20.00 | 11.00-15.00 | ≤2.00 | ≤0.045 | ≤0.030 | 3.00-4.00 | ≤1.00 | – | 0.1 | – | |
317L | 1.4438 | ≤0.03 | 18.00-20.00 | 11.00-15.00 | ≤2.00 | ≤0.045 | ≤0.030 | 3.00-4.00 | ≤1.00 | – | 0.1 | – | |
321 | 1.4541 | ≤0.08 | 17.00-19.00 | 9.00-12.00 | ≤2.00 | ≤0.045 | ≤0.030 | – | ≤1.00 | – | – | Ti5(C+N)~0.70 | |
321H | * | 0.04-0.10 | 17.00-19.00 | 9.00-12.00 | ≤2.00 | ≤0.045 | ≤0.030 | – | ≤1.00 | – | – | Ti5(C+N)~0.70 | |
347 | 1.4550 | ≤0.08 | 17.00-19.00 | 9.00-12.00 | ≤2.00 | ≤0.045 | ≤0.030 | – | ≤1.00 | – | – | Nb≥10*C%-1.10 | |
347H | 1.494 | 0.04-0.10 | 17.00-19.00 | 9.00-12.00 | ≤2.00 | ≤0.045 | ≤0.030 | – | ≤1.00 | – | – | Nb≥10*C%-1.10 | |
xm-19 | Nitronic50 | ≤0.06 | 20.50-23.50 | 11.50-13.50 | 4.0-6.0 | ≤0.045 | ≤0.030 | 1.50-3.00 | ≤1.00 | – | 0.2-0.4 | 铌:0.10-0.30 V:0.10-0.30 | |
904L | N08904 | ≤0.02 | 19.0-23.0 | 23.0-28.0 | 4.0-5.0 | ≤0.045 | ≤0.035 | ≤1.00 | 0.1 | 铜:1.0-2.0 | |||
双工 | 2205 | S32205 | ≤0.03 | 22.0-23.0 | 4.5-6.5 | ≤2.00 | ≤0.030 | ≤0.020 | 3.0-3.5 | ≤1.00 | – | 0.14-0.20 | |
2507 | 编号: S32750 | ≤0.03 | 24.0-26.0 | 6.0-8.0 | ≤1.20 | ≤0.035 | ≤0.020 | 3.0-5.0 | ≤0.80 | 0.5 | 0.24-0.32 | ||
* | S32760 | ≤0.03 | 24.0-26.0 | 6.0-8.0 | ≤1.00 | ≤0.030 | ≤0.010 | 3.0-4.0 | ≤1.00 | 0.5-1.00 | 0.2-0.3 | ||
2304 | S32304 | ≤0.03 | 21.5-24.5 | 3.0-5.5 | ≤2.50 | ≤0.040 | ≤0.030 | 0.05-0.6 | ≤1.00 | 0.05-0.6 | 0.05-0.2 | ||
329 | 1.4460 | ≤0.08 | 23.00-28.00 | 2.00-5.00 | ≤1.00 | ≤0.040 | ≤0.030 | 1.00-2.00 | ≤0.75 | – | – | ||
Ferrite | 409 | S40900 | ≤0.03 | 10.50-11.70 | 0.5 | ≤1.00 | ≤0.040 | ≤0.020 | – | ≤1.00 | – | ≤0.030 | Ti6(C+N)~0.50 Nb:0.17 |
430 | 1Cr17 | ≤0.12 | 16.00-18.00 | – | ≤1.0 | ≤0.040 | ≤0.030 | – | ≤1.0 | – | – | – | |
446 | S44600 | ≤0.20 | 23.00-27.00 | 0.75 | ≤1.5 | ≤0.040 | ≤0.030 | 1.50-2.50 | ≤1.00 | – | ≤0.25 | – | |
Martensite | 410 | 1Cr13 | 0.08-0.15 | 11.50-13.50 | 0.75 | ≤1.00 | ≤0.040 | ≤0.030 | – | ≤1.00 | – | – | – |
420 | 2Cr13 | ≥0.15 | 12.00-14.00 | – | ≤1.00 | ≤0.040 | ≤0.030 | – | ≤1.00 | – | – | – | |
440C | 11Cr17 | 0.95-1.20 | 16.00-18.00 | – | ≤1.00 | ≤0.040 | ≤0.030 | 0.75 | ≤1.00 | – | – | – |
规范 :
外径 | 6.35 mm O.D to 76.2 mm O.D |
厚度 | 0.7 mm 至 10 毫米 |
长度 | As per Customer requirement, Maximum upto 30Meter Long. |
标准 | ASTM A213标准, ASME SA213,ASTM A249,ASTM/ASME A/SA789,ASTM/ASME A/SA 163,ASTM/ASME A/SA268,ASTM/ASME A/SA688/213,ASTM/ASME A/SA803,ASTM/ASME A/SA556 |
类型 | Seamless Tubes, Welded Tubes |
Grades | 卫生纸 304 管, TP 304L Tube, 卫生纸 316 管, TP 316L Tube, 卫生纸 321 管, TP 321H Tube, 卫生纸 347 管, TP 347H Tube, 卫生纸 202 管, JT 7 管, J4 1 管, 卫生纸 409 管, TP 409L Tube, 卫生纸 410 管, TP 430Ti Tube, 卫生纸 439 管 |