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 pipebending before 100% flaw detectionreliable bending machine and precision bending mouldbending after the U-shaped part of the electric heating stress relief annealingbending 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 P S 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

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