ASTM A312/A312M

ASTM A312/A312M

添加时间:2017-03-16 10:53:00

ASTM A312/A312M

Standard Specification for Seamless and Welded Austenitic Stainless Steel Pipes

This specification covers seamless, straight-seam welded, and heavily cold worked welded austenitic stainless steel pipe intended for high-temperature and general corrosive service.

Grades TP304H, TP309H TP309HCb, TP310H, TP310HCb, TP316H, TP321H, and TP348H are modifications of Grades TP304, TP309Cb, TP309S, TP310Cb, TP310S, TP316, TP321, TP347, and TP348, and are intended for high-temperature service.

Manufacture:

The pipe shall be manufactured by one of the following processes:

Seamless (SML) pipe shall be made by a process that does not involve welding at any stage of production.

Welded (WLD) pipe shall be made using an automatic welding process with no addition of filler metal during the welding process.

Heavily cold-worked (HCW) pipe shall be made by applying cold working of not less than 35% reduction in thickness of both wall and weld to a welded pipe prior to the final anneal. No filler shall be used in making the weld. Prior to cold working, the weld shall be 100% radiographically inspected in accordance with the requirements of ASME Boiler and Pressure Vessel Code, Section VIII, Division 1, latest revision, Paragraph UW-51.

Welded pipe and HCW pipe of NPS 14 and smaller shall have a single longitudinal weld. Welded pipe and HCW pipe of a size larger than NPS 14 shall have a single longitudinal weld or shall be produced by forming and welding two longitudinal sections of flat stock when approved by the purchaser. All weld test, examinations, inspections, or treatments shall be performed on each weld seam.

At the options of the manufacturer, pipe shall be either hot finished or cold finished.

The pipe shall be free of scale and contaminating exogenous iron particles. Pickling, blasting, or surface finishing is not mandatory when pipe is bright annealed. The purchaser is permitted to require that a passivating treatment be applied to the finished pipe.

 

TP201(S20100) C 0.15%, Mn 5.5%-7.5%, P 0.06%, S 0.03%, Si 1.00%, Cr 16.0-18.0%, Ni 3.5%-5.5%, N 0.25%

TP201LN(S20153) C 0.03%, Mn 6.4%-7.5%, P 0.045%, S 0.015%, Si 0.75%, Cr 16.0-17.5%, Ni 4.0%-5.0%, N 0.10-0.25%, Cu 1.00%

TP304(S30400) C 0.08%, Mn 2.00%, P 0.045%, S 0.03%, Si 1.00%, Cr 18.0-20.0%, Ni 8.0%-11.0%

TP304L(S30403) C 0.035%, Mn 2.00%, P 0.045%, S 0.03%, Si 1.00%, Cr 18.0-20.0%, Ni 8.0%-13.0%

TP304H(S30409) C 0.04-0.10%, Mn 2.00%, P 0.045%, S 0.03%, Si 1.00%, Cr 18.0-20.0%, Ni 8.0%-11.0%

TP304N(S30451) C 0.08%, Mn 2.00%, P 0.045%, S 0.03%, Si 1.00%, Cr 18.0-20.0%, Ni 8.0%-18.0%, N 0.10%-0.16%

TP304LN(S30453) C 0.035%, Mn 2.00%, P 0.045%, S 0.03%, Si 1.00%, Cr 18.0-20.0%, Ni 8.0%-12.0%, N 0.10%-0.16%

TP309S(S30908) C 0.08%, Mn 2.00%, P 0.045%, S 0.03%, Si 1.00%, Cr 22.0-24.0%, Ni 12.0%-15.0%, Mo 0.75%

TP309H(S30909) C 0.04-0.10%, Mn 2.00%, P 0.045%, S 0.03%, Si 1.00%, Cr 22.0-24.0%, Ni 12.0%-15.0%

TP310S(S31008) C 0.08%, Mn 2.00%, P 0.045%, S 0.03%, Si 1.00%, Cr 24.0-26.0%, Ni 19.0%-22.0%, Mo 0.75%

TP310H(S31009) C 0.04-0.10%, Mn 2.00%, P 0.045%, S 0.03%, Si 1.00%, Cr 24.0-26.0%, Ni 19.0%-22.0%

TP316(S31600) C 0.08%, Mn 2.00%, P 0.045%, S 0.03%, Si 1.00%, Cr 16.0-18.0%, Ni 11.0%-14.0%, Mo 2.0%-3.0%

TP316L(S31603) C 0.035%, Mn 2.00%, P 0.045%, S 0.03%, Si 1.00%, Cr 16.0-18.0%, Ni 10.0%-14.0%, Mo 2.0%-3.0%

TP316H(S31609) C 0.04-0.10%, Mn 2.00%, P 0.045%, S 0.03%, Si 1.00%, Cr 16.0-18.0%, Ni 11.0%-14.0%, Mo 2.0%-3.0%

TP316Ti(S31635) C 0.08%, Mn 2.00%, P 0.045%, S 0.03%, Si 0.75%, Cr 16.0-18.0%, Ni 10.0%-14.0%, Mo 2.0%-3.0%, Ti 5×(C+N)-0.70%, N 0.10%

TP316N(S31651) C 0.08%, Mn 2.00%, P 0.045%, S 0.03%, Si 1.00%, Cr 16.0-18.0%, Ni 11.0%-14.0%, Mo 2.0%-3.0%, N 0.10%-0.16%

TP316LN(S31653) C 0.035%, Mn 2.00%, P 0.045%, S 0.03%, Si 1.00%, Cr 16.0-18.0%, Ni 11.0%-14.0%, Mo 2.0%-3.0%, N 0.10%-0.16%

TP317(S31700) C 0.08%, Mn 2.00%, P 0.045%, S 0.03%, Si 1.00%, Cr 18.0-20.0%, Ni 11.0%-14.0%, Mo 3.0%-4.0%

TP317L(S31703) C 0.035%, Mn 2.00%, P 0.045%, S 0.03%, Si 1.00%, Cr 18.0-20.0%, Ni 11.0%-15.0%, Mo 3.0%-4.0%

TP321(S32100) C 0.08%, Mn 2.00%, P 0.045%, S 0.03%, Si 1.00%, Cr 17.0-19.0%, Ni 9.0%-12.0%, N 0.10%

TP321H(S32109) C 0.04-0.10%, Mn 2.00%, P 0.045%, S 0.03%, Si 1.00%, Cr 17.0-19.0%, Ni 9.0%-12.0%, N 0.10%

TP347(S34700) C 0.08%, Mn 2.00%, P 0.045%, S 0.03%, Si 1.00%, Cr 17.0-19.0%, Ni 9.0%-13.0%

TP347H(S34709) C 0.04-0.10%, Mn 2.00%, P 0.045%, S 0.03%, Si 1.00%, Cr 17.0-19.0%, Ni 9.0%-13.0%

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