Ferritic and martensitic steel

TP 410 • UNS S41000 • 1.4006 • TPS-FS-4006-410

Datasheet

This 12% chrome steel is very deep hardening, meaning that hard martensite is formed at cooling rates as slow as 20°C/minute. The hard brittle martensites require prompt tempering at a high enough temperature to improve impact properties. Increasing nickel achieves a better combination of properties. Not very resistant to aerated seawater. Welding is limited because high preheat and immediate postweld tempering is necessary to minimize the risk of hardzone cracking. Type 410 is not equal to the austenitic steels in corrosion resistance, but satisfactorily withstands the effects of the milder acids, alkalies, fresh water and atmospheric conditions. It is the least costly of the stainless steels, containing just enough to yield stainless properties.

Chemical composition • mass in %

Material grade Norm C
max.
Si
max.
Mn
max.
P
max.
S
max.
Cr Ni Mo Ti others
1.4006 DIN 17456 0,080 - 0,150 1,00 1,00 0,045 0,030 12,00 - 14,00 0,75
TP410 ASME SA / ASTM A 268 0,150 1,00 1,00 0,040 0,030 11,50 - 13,50

Mechanical properties and heat treatment

Material grade Norm Rp 0,2 MPa
min.
Rp 1,0 MPa
min.
Rm MPa
min. max.
A
min.%
Hardness
HRB max.
Heat treatment
1.4006 DIN 17456 200 250 450 - 650 20 annealed
TP410 ASME SA / ASTM A 268 205 415 20 95 annealed

Rp 0,2 = Rotation

Rp 1,0 = Yield Strength

Rm = Tensile Strength

A = Elongation

Tolerances

OD - Tube OD WT special WT ID
ab Ø4,55 mm ±0,050 mm ±0,150 mm ±0,100 mm X
ab Ø9,53 mm ±0,050 mm ±0,100 mm ±0,080 mm ±0,050 mm
ab Ø30,00 mm ±0,100 mm ±0,150 mm ±0,050 mm

Scope of dimensions*

* Dimensions not shown on request

WD [mm] 0,89 1,00 1,20 1,24 1,65 1,82 2,00 2,11 2,30 2,35 2,50 2,60 2,64 2,77 2,87 3,00 3,20 3,25 3,60 3,85 3,91 4,00 4,40 5,50 6,35 7,00
AD [inch] 0,035 0,048 0,065 0,072 0,083 0,093 0,104 0,109 0,113 0,126 0,128 0,154 0,250
[mm] [inch]
6,00
6,35 0,250
7,00
7,50
8,00
9,00
9,53 0,375
10,00
11,00
12,70 0,500
13,00
15,00
15,88 0,625
16,00
16,80
17,15 0,675
18,00
19,00
19,05 0,750
20,00
21,34 0,840
22,00
22,23 0,875
23,00
25,00
25,40 1,000
26,00
26,67 1,050
28,00
30,00
31,75 1,250
32,00
33,40 1,315
36,00
38,10 1,500
42,00
44,50 1,750

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