4 Inch Sch 40 Seamless Steel Pipe Heat Resistant Din 17175 15crmo Construction
4 Inch Sch40 Heat Resistant DIN 17175 15CrMo Seamless Steel Pipe For Construction
The 15CrMo steel pearlite heat-resistant steel, high hot strength (δ b ≥ 440MPa) and oxidation resistance at high temperatures, and has a certain resistance to hydrogen corrosion. As the steel contains a higher content of Cr, C, and other alloying elements, the steel hardened tendency obvious, poor welding.
First, 15CrMo steel chemical composition
| Grade | 15CrMo steel chemical composition (mass fraction) ( % ) | ||||||||
| C | Mn | Si | Cr | Mo | Ni | Nb + Ta | S | P | |
| 15CrMo | 0.12 ~ 0.18 | 0.40 ~ 0.70 | 0.17 ~ 0.37 | 0.80 ~ 1.10 | 0.40 ~ 0.55 | ≤0.30 | _ | ≤0.035 | ≤0.035 |
Second, 15CrMo mechanical properties of steel
| Grade | Tensile strength MPa | Yield point MPa | Elongation ( % ) |
| 15CrMo steel pipe | 440 ~ 640 | 235 | twenty one |
Third, 15CrMo steel allowable stress
| 15CrMo steel pipe GB9948 stress allowable standards | ||||||||||||
| Steel number | Wall thickness ( mm) | In the following temperature ( deg.] C ) under the allowable stress ( Mpa) | ||||||||||
| ≤ 20 | 100 | 200 | 250 | 300 | 350 | 400 | 450 | 500 | 525 | 550 | ||
| 12CrMo | ≤ 16 | 128 | 113 | 101 | 95 | 89 | 83 | 77 | 74 | 71 | 50 | --- |
| 15CrMo | ≤ 16 | 147 | 132 | 116 | 110 | 101 | 95 | 89 | 86 | 83 | 58 | 37 |
| 15CrMo steel pipe in the GB6479 standard allowable stress | ||||||||||||
| Steel number | Wall thickness ( mm) | In the following temperature ( deg.] C ) under the allowable stress ( Mpa) | ||||||||||
| ≤ 20 | 100 | 200 | 300 | 400 | 450 | 500 | 525 | 550 | 575 | 600 | ||
| 12CrMo | ≤ 16 | 128 | 113 | 101 | 89 | 77 | 74 | 71 | 50 | - | - | - |
| 17 ~ 40 | 122 | 110 | 98 | 86 | 74 | 71 | 68 | 50 | - | - | - | |
| 15CrMo | ≤ 16 | 147 | 132 | 116 | 101 | 89 | 86 | 83 | 58 | 37 | - | - |
| 17 ~ 40 | 141 | 126 | 110 | 95 | 86 | 83 | 79 | 58 | 37 | - | - | |
FAQ
1. Q: I haven't done business with you guys before,how can I trust your company?
A: Our company has been in for 7, almost 8 years, which is longer than most of our fellow suppliers, we've been golden suppliers for years. What's more, we've got quite a lot authority certificates, for example, CE, ISO9001, made in china onsite check certificate. I hope those above will be persuasive enough.
2. Q: What is the minimum order?
A: Yes, our company mainly deals with wholesale deals, but if you insist buying one piece, or you just need one piece, we would be very likely to make the MOQ as 1 piece for you though.
3. Q: How can I get a sample to check your quality? How long can I get the sample?
A: After price confirmed, FREE SAMPLE could be provided for your evaluation.
After you confirm the sample details, the samples will be ready for delivery in 3-7days,and will be sent to you via express and arrive in 3-5days.
4. Q: What payment methods your company accept?
A: We accept T/T, L/C, Western Union, Paypal.
5. Q: What's the shipment terms and delivery time of your company?
A: FOB,CFR,CIF,15-60days
6. Q: Do you give any discount ?
A: We'll surely try our best to help you get those by the best price and good service at the same time.
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